Gearbox shell, gearbox and vehicle

Abstract

The utility model discloses a gearbox shell, a gearbox and a vehicle, the gearbox shell comprises a box shell body and a breathing cavity shell, and a breathing device is arranged on the breathing cavity wall section of the box shell body; the breathing cavity shell comprises an annular plate body, first side plate bodies and a second side plate body, the annular plate body is arranged in an inner cavity of the box shell body, the annular plate body and the breathing cavity wall section are oppositely arranged in a spaced mode, the first side plate bodies are arranged at the two ends of the annular plate body, the annular plate body, the first side plate bodies and the breathing cavity wall section define a breathing cavity, and the second side plate body is arranged in the breathing cavity; the air passing notches are formed in the first side plate body and the second side plate body, the structure is simple, and the machining cost can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to gearbox technical field, concretely relates to a gearbox housing, gearbox and vehicle. BACKGROUND

[0002] Gearbox housing is an important part of gearbox, and the function of gearbox is to effectively transmit power of engine to wheels so that vehicles can adapt to various driving conditions. Heat loss will be generated in internal gear transmission of gearbox housing, and the temperature inside gearbox housing will rise sharply when gearbox works for a long time. The temperature rise will cause the pressure to rise, therefore, the gearbox housing needs to be provided with a pressure relief structure. The pressure relief structure usually includes an oil blocking structure and a breather plug. The existing oil blocking structure is provided with a winding oil blocking groove, which blocks oil to avoid the breather plug from being blocked. However, the existing oil blocking structure has the problems of complex structure and high processing cost. SUMMARY

[0003] In view of the above defects or deficiencies, the utility model provides a gearbox housing, a gearbox and a vehicle, aiming to solve the technical problems of complex structure and high processing cost of the existing gearbox oil blocking structure.

[0004] In order to achieve the above purpose, the utility model provides a gearbox housing, wherein the gearbox housing comprises a housing body and a breathing cavity housing, and a breather is arranged on the breathing cavity wall section of the housing body; the breathing cavity housing comprises a ring plate body, a first side plate body and a second side plate body, the ring plate body is arranged in the inner cavity of the housing body and is arranged in opposite intervals with the breathing cavity wall section, the two ends of the ring plate body are provided with the first side plate body, and the ring plate body, the first side plate body and the breathing cavity wall section form a breathing cavity chamber, the second side plate body is arranged in the breathing cavity chamber, and the first side plate body and the second side plate body are both formed with air passing gaps.

[0005] In the embodiment of the utility model, the gearbox housing further comprises an edge baffle, the first end of the breathing cavity housing is connected with the inner cavity wall of the housing body, the second end of the breathing cavity housing is provided in an open and hollow manner, and the edge baffle cover is arranged on the second end of the breathing cavity housing.

[0006] In the embodiment of the utility model, the air passing gaps are arranged towards the edge baffle, and the air passing gaps are respectively arranged on the edge corner positions towards the breathing cavity wall section and the ring plate body on each first side plate body and second side plate body.

[0007] In the embodiment of the utility model, the number of the second side plate bodies is at least two, and the at least two second side plate bodies are arranged in intervals, and the edge baffle is detachably connected with the at least two second side plate bodies through fasteners.

[0008] In the embodiment of the utility model, the second side plate body is formed with a threaded column, the threaded column is located between the two air passing gaps, the threaded column is formed with a threaded hole, and the fastener is threadedly connected with the hole wall of the threaded hole.

[0009] In the embodiment of the utility model, the respirator is located between the two second side plate bodies arranged adjacently.

[0010] In the embodiment of the utility model, the ring plate body is bulged towards the breathing cavity wall segment and is arranged with both ends extending towards the breathing cavity wall segment in reverse, the air passing gap on the first side plate body extends to the ring plate body, so that the air passing gap is located at the bottom of the breathing cavity shell.

[0011] In the embodiment of the utility model, the breathing cavity wall segment is arc-shaped, so that the breathing cavity chamber enclosed by the ring plate body, the first side plate body and the breathing cavity wall segment is arc-shaped.

[0012] In the embodiment of the utility model, the breathing cavity shell and the box shell body are integrally formed.

[0013] In the embodiment of the utility model, the respirator is threadedly connected with the breathing cavity wall segment.

[0014] In addition, the utility model also provides a gearbox, the gearbox comprises the gearbox shell as described above.

[0015] In addition, the utility model also provides a vehicle, the vehicle comprises the gearbox as described above.

[0016] Through the above technical scheme, the gearbox shell provided by the embodiment of the utility model has the following beneficial effects:

[0017] The breather is arranged on the breathing cavity wall section of the box shell body, and is used for air permeation to discharge the high-temperature and high-pressure gas in the box shell body, so that pressure relief is realized, the pressure balance between the inside and outside of the box shell body is maintained, and the damage of the gearbox caused by the excessively high internal pressure of the box shell body is avoided. The gas in the box shell body enters the breathing cavity through the gas passing gap on the first side plate body, and then enters the breather through the gas passing gap on the second side plate body, and the gas is discharged outward through the breather, so that pressure release is realized. The first side plate body can block the oil liquid in the box shell body from splashing into the breathing cavity, and the oil liquid in the box shell body is preliminarily shielded. The second side plate body is located in the breathing cavity, and the second side plate body can block the oil liquid splashing into the breathing cavity from entering the breather, and the oil liquid in the box shell body is further shielded, so that the breather can be more clean, the contact between the breather and the oil liquid is reduced, and the probability of blockage of the breather is reduced. The gearbox shell in the utility model is provided with the first side plate body and the second side plate body to block the oil liquid in the box shell body from splashing into the breather, the gas passing gap is formed on the first side plate body and the second side plate body, the gas can flow from the inside of the box shell body to the breather, the gas is discharged outward through the breather, so that pressure relief is realized, compared with the mode of setting the winding and winding oil groove, the structure is simpler, and the processing cost can be reduced. Moreover, the space in the gearbox shell is reasonably utilized, and the overall structure of the gearbox shell is compact.

[0018] Other features and advantages of the embodiments of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings are included to provide a further understanding of the embodiments of the present application, and constitute a part of the specification, and are used together with the following specific embodiments to explain the embodiments of the present application, but do not constitute a limitation on the embodiments of the present application. For those skilled in the art, other drawings can be obtained from the structures shown in the drawings without creative labor. In the drawings:

[0020] Figure 1 is a structural schematic view of a gearbox shell according to an embodiment of the present application in one view angle;

[0021] Figure 2 is a structural schematic view of a gearbox shell according to an embodiment of the present application in another view angle;

[0022] Figure 3 is a structural schematic view of a gearbox shell according to an embodiment of the present application in still another view angle;

[0023] Figure 4 is a structural schematic view of a gearbox shell according to an embodiment of the present application in still another view angle;

[0024] Figure 5 This is a cross-sectional schematic diagram of a gearbox housing according to an embodiment of the present invention.

[0025] Explanation of reference numerals in the attached figures

[0026] 100 Gearbox housing 33 Second side plate

[0027] 10. Casing body 331 Threaded post

[0028] 11. Respiratory cavity wall segment; 34. Respiratory chamber.

[0029] 12 Nuts 35 Air Leakage Notch

[0030] 20 Respirator 36 First end

[0031] 30 Breathing chamber shell 37 Second end

[0032] 31 Ring plate body 40 Side baffle

[0033] 32 First side plate body 50 Fasteners Detailed Implementation

[0034] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0035] The following description of the gearbox housing, gearbox, and vehicle of this utility model is based on the accompanying drawings.

[0036] like Figures 1 to 5 As shown, this utility model provides a gearbox housing 100, wherein the gearbox housing 100 includes a housing body 10 and a breathing chamber housing 30. A breather 20 is provided on the breathing chamber wall section 11 of the housing body 10. Please refer to [link / reference]. Figure 1 and Figure 2 The area between the two dashed lines is the respiratory cavity wall segment 11.

[0037] The breathing chamber shell 30 includes an annular plate 31, a first side plate 32, and a second side plate 33. The annular plate 31 is disposed in the inner cavity of the shell body 10 and is spaced apart from the breathing chamber wall section 11. The first side plate 32 is provided at both ends of the annular plate 31, and the annular plate 31, the first side plate 32, and the breathing chamber wall section 11 enclose a breathing chamber 34. The second side plate 33 is disposed in the breathing chamber 34, and an air passage notch 35 is formed on both the first side plate 32 and the second side plate 33.

[0038] The breather 20 is arranged on the breathing cavity wall section 11 of the box shell body 10, and is used for air permeation to discharge the high-temperature and high-pressure gas in the box shell body 10, so as to realize pressure relief, keep the pressure balance between the inside and outside of the box shell body 10, and avoid damage of the gearbox caused by the excessively high pressure in the box shell body 10.

[0039] The ring plate body 31 is located in the inner cavity of the box shell body 10, is arranged opposite to the breathing cavity wall section 11, and is spaced apart from the breathing cavity wall section 11. The first side plate body 32 is in number of two, is located at two ends of the ring plate body 31 respectively, and is connected between the ring plate body 31 and the breathing cavity wall section 11. The ring plate body 31, the first side plate body 32 and the breathing cavity wall section 11 form the breathing cavity chamber 34. The second side plate body 33 is located in the breathing cavity chamber 34, and the first side plate body 32 and the second side plate body 33 are both formed with the air passing gap 35. The gas in the box shell body 10 enters the breathing cavity chamber 34 through the air passing gap 35 on the first side plate body 32, then enters the breather 20 through the air passing gap 35 on the second side plate body 33, and is discharged outward through the breather 20 to realize pressure relief.

[0040] The first side plate body 32 can block the oil liquid in the box shell body 10 from splashing into the breathing cavity chamber 34, and preliminarily shields the oil liquid in the box shell body 10. The second side plate body 33 is located in the breathing cavity chamber 34, can block the oil liquid splashing into the breathing cavity chamber 34 from entering the breather 20, further shields the oil liquid in the box shell body 10, so that the breather 20 can be more clean, the contact between the breather 20 and the oil liquid is reduced, and the probability of blockage of the breather 20 is reduced.

[0041] The gearbox shell 100 in the utility model blocks the oil liquid in the box shell body 10 from splashing into the breather 20 by arranging the first side plate body 32 and the second side plate body 33, forms the air passing gap 35 on the first side plate body 32 and the second side plate body 33, realizes that the gas can circulate from the inside of the box shell body 10 to the breather 20, the gas is discharged outward through the breather 20 to realize pressure relief, compared with the mode of arranging the detour winding oil groove, the structure is simpler, and the processing cost can be reduced. Moreover, the space in the gearbox shell 100 is reasonably utilized, so that the overall structure of the gearbox shell 100 is compact.

[0042] Specifically, the ring plate body 31 is provided with a gear below. The ring plate body 31 is arc-shaped, so that the breathing cavity chamber 34 is arc-shaped, and the effect of shielding the oil liquid by the first side plate body 32 and the second side plate body 33 is better compared with the case that the breathing cavity chamber 34 is linear.

[0043] In the embodiment of the utility model, please refer to Figures 1 to 5 Among them, Figure 1 ,Figure 3 and Figure 4 The edge baffle 40 in The gearbox housing 100 further comprises the edge baffle 40, and the first end 36 of the breathing cavity housing 30 is connected with the inner cavity wall of the box housing body 10 to realize mounting and fixing of the breathing cavity housing 30.

[0044] The second end 37 of the breathing cavity housing 30 is provided in an open hollow manner, and the hollow structure can improve the gas flow efficiency and provide a good gas exchange environment for the inside of the breathing cavity 34. The edge baffle 40 is arranged on the second end 37 of the breathing cavity housing 30, and the edge baffle 40 can effectively prevent dust, impurities and other external pollutants from entering the breathing cavity 34. By arranging the edge baffle 40 on the second end 37 of the breathing cavity housing 30, the structure of the gearbox housing 100 is more compact.

[0045] The edge baffle 40 is a thin plate structure, and the profile of the edge baffle 40 is consistent with the profile shape of the breathing cavity 34, and the edge baffle 40 is formed by laser cutting.

[0046] In other embodiments, the edge baffle 40 can not be arranged, and the cavity wall of the box housing body 10 is used to prevent oil from splashing out of the box housing body 10.

[0047] In the embodiments of the utility model, please refer to Figure 4 and Figure 5 The gas passing gap 35 is arranged towards the edge baffle 40, the edge baffle 40 can be disassembled, oil in the gas passing gap 35 is cleaned, and the gas passing gap 35 is conveniently cleaned. The gas passing gap 35 is arranged on the edge corner position of each first side plate body 32 and second side plate body 33 towards the breathing cavity wall section 11 and ring plate body 31, the gas passing efficiency of the first side plate body 32 and second side plate body 33 is improved by arranging two gas passing gaps 35. Moreover, the two gas passing gaps 35 are arranged close to the breathing cavity wall section 11 and ring plate body 31 respectively, so that the gas distribution is more uniform, and it is beneficial to pressure relief.

[0048] As shown in Figure 4 , Figure 4 The dashed line with an arrow in Gas enters the breathing cavity 34 from the gas passing gap 35 on the first side plate body 32, can be sequentially circulated to the two gas passing gaps 35 on the second side plate body 33, and then circulated to the respirator 20 and discharged outward through the respirator 20.

[0049] In the embodiments of the utility model, the number of the second side plate body 33 is at least two, and the at least two second side plate bodies 33 are arranged at intervals. By arranging the number of the second side plate body 33 to be at least two, the second side plate body 33 can layer by layer shield oil, the effect of shielding oil of the second side plate body 33 is improved, the probability of clogging of the respirator 20 is further reduced, and the probability of clogging of the respirator 20 is further reduced.

[0050] The side baffle 40 is detachably connected with the at least two second side plate bodies 33 through the fasteners 50 respectively, the side baffle 40 is convenient to replace after wearing and tear, and the use flexibility of the side baffle 40 is improved.

[0051] Specifically, the fastener 50 can be a bolt, a rivet or other structure for realizing detachable connection.

[0052] In the embodiment of the utility model, please refer to Figure 2 And Figure 4 Threaded column 331 is formed on the second side plate body 33, and the threaded column 331 is located between the two air gaps 35. The mounting threaded hole is formed with a threaded hole, and the fastener 50 is threadedly connected with the hole wall of the threaded hole, so that the side baffle 40 can be detachably connected with the second side plate body 33 through threaded connection. The threaded connection can realize self-locking, and the threaded connection is convenient for dismounting and mounting the side baffle 40.

[0053] In the embodiment of the utility model, please refer to Figure 4 The respirator 20 is located between the two second side plate bodies 33 arranged adjacently, interference or obstacles are avoided between the second side plate body 33 and the respirator 20, and the gas flow efficiency of the respirator 20 caused by the second side plate body 33 shielding the respirator 20 is effectively prevented.

[0054] Specifically, the respirator 20 is located at the top end of the breathing cavity wall section 11, so that the probability of the oil blocking the respirator 20 is smaller, and the contact of the oil with the respirator 20 is further reduced.

[0055] In the embodiment of the utility model, please refer to Figure 1 The ring plate body 31 is bulged towards the breathing cavity wall section 11 and extends at both ends away from the breathing cavity wall section 11, specifically, the ring plate body 31 is arranged in an arc shape bulged upwards. The air gap 35 on the first side plate body 32 extends to the ring plate body 31, so that the air gap 35 of the first side plate body 32 is located at the bottom of the breathing cavity shell 30, so that the oil entering the inside of the breathing cavity chamber 34 can be discharged from the air gap 35 at the bottom of the breathing cavity shell 30 in time under the action of gravity, and the probability of the oil accumulating in the inside of the breathing cavity chamber 34 is reduced.

[0056] In the embodiment of the utility model, please refer to Figure 1 The breathing cavity wall section 11 is in an arc shape, so that the breathing cavity chamber 34 enclosed by the ring plate body 31, the first side plate body 32 and the breathing cavity wall section 11 is in an arc shape. The breathing cavity chamber 34 is in an arc shape, so that the connecting line between the air gaps 35 is in a curve, compared with the linear shape of the breathing cavity chamber 34, the first side plate body 32 and the second side plate body 33 have better effects of shielding the oil, and the probability of the oil entering the respirator 20 is further reduced.

[0057] In the embodiment of the utility model, the breathing cavity shell 30 is integrally formed with the box shell body 10, that is, the ring plate body 31, the first side plate body 32 and the second side plate body 33 are integrally formed with the box shell body 10, simple to process, save the cost, and can save the assembly steps of installing the breathing cavity shell 30 and the box shell body 10, reduce the assembly error of the breathing cavity shell 30 and the box shell body 10, make the connection of both very stable and reliable.

[0058] In the embodiment of the utility model, please refer to Figure 1 The respirator 20 is threadedly connected with the breathing cavity wall section 11, the threadedly connection makes the respirator 20 detachable, facilitates the replacement after the respirator 20 wears, makes the use of the respirator 20 more flexible and convenient.

[0059] Specifically, the respirator 20 is provided with a first threaded section. The breathing cavity wall section 11 is provided with a nut 12, the nut 12 is provided with a second threaded section, and the first threaded section is threadedly connected with the second threaded section.

[0060] The respirator 20 can be a breathable plug, and the respirator 20 can be breathable to release pressure.

[0061] In the utility model, the breathing cavity shell 30 is provided with the ring plate body 31, the first side plate body 32 and the second side plate body 33, the first side plate body 32 and the second side plate body 33 are used for blocking the oil liquid from splashing directly to the respirator 20, each first side plate body 32 and second side plate body 33 are provided with air passing gaps 35, and the air passing gaps 35 are used for air permeation and oil liquid backflow. The first side plate body 32 and the second side plate body 33 divide the breathing cavity chamber 34 into multiple areas, each area is communicated through the air passing gap 35 on the first side plate body 32 or the second side plate body 33, efficiently blocks the oil liquid, and enables the oil liquid to backflow smoothly into the box shell body 10.

[0062] In addition, the utility model also provides a gearbox, the gearbox includes the gearbox shell 100 as described above. Since the gearbox adopts all the technical schemes of the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical schemes of the above-mentioned embodiments, which will not be repeated here.

[0063] In addition, the utility model also provides a vehicle, the vehicle includes the gearbox according to as described above. Since the vehicle adopts all the technical schemes of the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical schemes of the above-mentioned embodiments, which will not be repeated here.

[0064] In the description of the utility model, it is understood that the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In the description of the utility model, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0065] In the utility model, unless otherwise specifically defined and limited, the terms "installation", "connection", "connection", "fixing" and other terms should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or communicate with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication or interaction relationship between two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0066] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of different embodiments or examples without contradiction.

[0067] Although the embodiments of the utility model have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the utility model, and the skilled in the art can change, modify, replace and modify the above embodiments within the scope of the utility model.

Claims

1. A gearbox housing, characterized in that, The gearbox housing comprises: a housing body (10), a breather cavity wall section (11) of the housing body (10) being provided with a breather (20); a breather cavity housing (30) comprising a ring plate body (31), a first side plate body (32) and a second side plate body (33), the ring plate body (31) being arranged in an inner cavity of the housing body (10) and being spaced apart from the breather cavity wall section (11), both ends of the ring plate body (31) being provided with the first side plate body (32), and the ring plate body (31), the first side plate body (32) and the breather cavity wall section (11) forming a breather cavity chamber (34), the second side plate body (33) being arranged in the breather cavity chamber (34), both the first side plate body (32) and the second side plate body (33) being formed with a gas passing gap (35).

2. The transmission housing of claim 1, wherein, The gearbox housing (100) further comprises a side baffle (40), a first end (36) of the breather cavity housing (30) being connected with an inner cavity wall of the housing body (10), a second end (37) of the breather cavity housing (30) being provided in an open and hollow manner, and the side baffle (40) being arranged on the second end (37) of the breather cavity housing (30).

3. The transmission housing of claim 2, wherein, The gas passing gap (35) is arranged towards the side baffle (40), and each of the first side plate body (32) and the second side plate body (33) is respectively provided with the gas passing gap (35) at a corner position towards the breather cavity wall section (11) and the ring plate body (31).

4. The gearbox housing according to claim 3, characterized in that The number of the second side plate body (33) is at least two, and the at least two second side plate bodies (33) are arranged in a spaced apart manner, and the side baffle (40) is detachably connected with the at least two second side plate bodies (33) through fasteners (50).

5. A gearbox housing according to claim 4, characterised in that The second side plate body (33) is formed with a threaded column (331) between the two gas passing gaps (35), the threaded column (331) is formed with a threaded hole, and the fastener (50) is threadedly connected with a hole wall of the threaded hole.

6. The transmission housing of claim 4, wherein, The breather (20) is arranged between two adjacent second side plate bodies (33).

7. The transmission housing of any one of claims 1 to 6, wherein, The ring plate body (31) is raised towards the breather cavity wall section (11) and extends towards the breather cavity wall section (11) at both ends, the gas passing gap (35) on the first side plate body (32) extends to the ring plate body (31), so that the gas passing gap (35) is located at the bottom of the breather cavity housing (30); and / or The breather cavity wall section (11) is arc-shaped, so that the breather cavity chamber (34) formed by the ring plate body (31), the first side plate body (32) and the breather cavity wall section (11) is arc-shaped.

8. The transmission housing of any one of claims 1 to 6, wherein, The breather cavity housing (30) is integrally formed with the housing body (10); and / or The breather (20) is threadedly connected with the breather cavity wall section (11).

9. A gearbox characterized in that, The gearbox comprises the gearbox housing according to any one of claims 1 to 8.

10. A vehicle characterized by comprising: The vehicle comprises the gearbox according to claim 9.

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