Speed reducer lubricating system, speed reducer and vehicle

Abstract

The invention discloses a speed reducer lubricating system, a speed reducer and a vehicle. The speed reducer lubricating system comprises a first shell; a second housing; the second shell is connected to the first shell, and an accommodating cavity is defined by the second shell and the first shell; the containing cavity comprises an input shaft cavity, a middle shaft cavity, an output shaft cavity and a ventilation cavity. An oil guide rib assembly; comprising a first oil guide rib and a first annular rib which are arranged on the first shell; the second oil guide rib and the second annular rib are arranged on the second shell; the first annular rib and the second annular rib are connected to form an annular rib; the first oil guide rib and the second oil guide rib are arranged between the middle shaft cavity and the annular rib; the annular rib is arranged around the input shaft cavity, the middle shaft cavity and the output shaft cavity; the annular rib, the inner wall of the first shell and the inner wall of the second shell form the ventilation cavity; a first opening is formed in the side, close to the output shaft cavity, of the first annular rib.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of reducer lubrication, and in particular to a reducer lubrication system, a reducer and a vehicle. Background Art

[0002] For a certain type of vehicle, the reducer is one of the core components. In order to ensure the stable operation and function of various components in the reducer, including shaft gears, bearings, motors, etc., the structure and lubrication system of the reducer housing often play a vital role. Poorly designed lubrication systems lead to poor lubrication or cooling of components in the reducer, resulting in relatively serious wear of components such as gears and bearings, which affects the service life and efficiency of the entire vehicle, leading to failure of the reducer. In more serious cases, the entire vehicle may be unable to drive or even scrapped, resulting in poor user experience. In recent years, reducer manufacturers at home and abroad have launched a new round of competition around "reducing the cost of reducers", and the reducer housing that wraps the entire reducer components needs to be more lightweight, intelligent, and compact in structural design, which often makes the price lower and supports and wraps other structures more efficient.

[0003] Currently, reducers generally have fewer shaft systems and relatively simple structures. Lubricating oil channels are often set on the lightweight reducer housing structure to actively lubricate the reducer. However, active lubrication will occupy the internal structure of the reducer, resulting in low space utilization. Summary of the invention

[0004] The present invention provides a reducer lubrication system, a reducer and a vehicle. The reducer system realizes splash lubrication through an oil guide rib assembly. The lubrication effect is not only simple and easy to implement, and can meet the lubrication requirements of the reducer, but also low in cost, and plays a vital role in reducing the cost of the reducer.

[0005] To achieve the above objectives, in a first aspect, an embodiment of the present invention provides a reducer lubrication system, the reducer lubrication system comprising:

[0006] a first shell;

[0007] A second housing is connected to the first housing and forms a housing cavity with the first housing; the housing cavity includes an input shaft cavity, an intermediate shaft cavity, an output shaft cavity and a ventilation cavity;

[0008] An oil guide rib assembly; comprising a first oil guide rib and a first annular rib arranged on the first shell; a second oil guide rib and a second annular rib arranged on the second shell; the first annular rib and the second annular rib are connected to form an annular rib; the first oil guide rib and the second oil guide rib are both arranged between the intermediate shaft cavity and the annular rib; the annular rib is arranged around the input shaft cavity, the intermediate shaft cavity and the output shaft cavity; the annular rib and the inner wall of the first shell and the inner wall of the second shell form the ventilation cavity; a first opening is arranged on the first annular rib close to the output shaft cavity.

[0009] Optionally, the reducer lubrication system further includes: an oil guide groove; the oil guide groove is arranged between the annular rib and the input shaft bearing in the input shaft chamber.

[0010] Optionally, the oil guide groove includes a first oil guide portion, a second oil guide portion and a concave portion; the first oil guide portion is connected to an upper bearing arm of the input shaft bearing; the second oil guide portion is connected to a lower bearing arm of the input shaft bearing;

[0011] The recessed portion is disposed between the input shaft gear and the annular rib; in the horizontal extension direction of the input shaft gear, the distance between the recessed portion and the annular rib satisfies a preset distance.

[0012] Optionally, the oil guide rib assembly also includes a first oil baffle rib arranged on the first shell and a second oil baffle rib arranged on the second shell; the first oil baffle rib and the second oil baffle rib are connected to form an oil baffle rib; the oil baffle rib is arranged at the first opening.

[0013] Optionally, the oil guide rib assembly further includes a third oil guide rib arranged on the first shell; a fourth oil guide rib arranged on the second shell; the third oil guide rib includes a first oil return port and a vent hole; the third oil guide rib and the fourth oil guide rib are connected to form a first straight rib; the first straight rib is in the ventilation chamber;

[0014] The annular rib also includes an oil return through hole.

[0015] Optionally, the oil guide rib assembly also includes a fifth oil guide rib arranged on the first shell; a sixth oil guide rib arranged on the second shell; the sixth oil guide rib includes a second oil return port; the fifth oil guide rib and the sixth oil guide rib are connected to form a second straight rib; the second straight rib is in the ventilation chamber.

[0016] Optionally, the oil guide rib assembly also includes a seventh oil guide rib arranged on the first shell; the seventh oil guide rib connects the intermediate shaft system and the annular rib; the seventh oil guide rib is arranged between the first oil guide rib and the input shaft system in the input shaft cavity.

[0017] Optionally, the first oil guiding rib and the second oil guiding rib both include a protrusion.

[0018] In the second aspect, an embodiment of the present invention further provides a reducer, which includes the reducer lubrication system described in the first aspect above; and also includes: an input shaft system in the input shaft chamber; an intermediate shaft system in the intermediate shaft chamber and an output shaft system in the output shaft chamber; the intermediate shaft system includes a primary driven gear, a secondary driven gear and an intermediate shaft bearing; the input shaft system includes an input shaft gear and an input shaft bearing; the output shaft system includes an output shaft gear and an output shaft bearing.

[0019] In a third aspect, an embodiment of the present invention further provides a vehicle, the vehicle comprising the reducer described in the second aspect.

[0020] In the embodiment of the present invention, a first oil guide rib and a first annular rib are arranged on the first housing; a second oil guide rib and a second annular rib are arranged on the second housing; the first annular rib and the second annular rib are connected to form an annular rib; the first oil guide rib and the second oil guide rib are both arranged between the intermediate shaft cavity and the annular rib; the annular rib is arranged around the input shaft cavity, the intermediate shaft cavity and the output shaft cavity; the annular rib and the inner wall of the first housing and the inner wall of the second housing form a ventilation cavity; and a first opening is arranged on the first annular rib near the side of the output shaft cavity, so that the annular rib can return part of the oil thrown out of the output shaft system of the output shaft cavity to the input shaft system of the input shaft cavity, and part of the oil is returned through the first oil guide rib and the second The oil guide ribs return to the intermediate shaft system of the intermediate shaft system, realizing oil circulation; at the same time, the first opening discharges the gas output by the output shaft system of the output shaft chamber; but since the first opening discharges the output gas while allowing a small amount of oil thrown out by the output shaft system to enter the ventilation chamber, the small amount of oil thrown out by the output shaft system can be guided back to the input shaft system through the annular ribs close to the inner wall of the first shell and the inner wall of the second shell. In this way, the reducer lubrication system realizes splash lubrication through the oil guide rib assembly on the basis of realizing gas exhaust, without the need to set up oil channels, and the lubrication effect is not only simple and easy, which can meet the lubrication needs of the reducer, but also low in cost, which plays a vital role in reducing the cost of the reducer.

[0021] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 is a schematic cross-sectional structure diagram of a reducer lubrication system provided by an embodiment of the present invention;

[0024] Figure 2 is a structural schematic diagram of a first housing in a reducer lubrication system provided in an embodiment of the present invention;

[0025] Figure 3 is a structural schematic diagram of a second housing in a reducer lubrication system provided in an embodiment of the present invention;

[0026] Figure 4 It is a structural schematic diagram of a reducer mechanism loaded on a second housing in a reducer lubrication system provided by an embodiment of the present invention;

[0027] Figure 5 It is a structural schematic diagram of an oil guide groove provided by an embodiment of the present invention;

[0028] Figure 6 It is a diagram of the oil return path and the gas discharge path from the perspective of the first shell provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0030] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0031] Figure 1 is a schematic cross-sectional structure diagram of a reducer lubrication system provided by an embodiment of the present invention; Figure 2 is a structural schematic diagram of a first housing in a reducer lubrication system provided in an embodiment of the present invention; Figure 3 is a schematic diagram of the structure of the second housing in the reducer lubrication system provided by an embodiment of the present invention; Figure 1-3 As shown, the reducer lubrication system includes: a first housing 10; a second housing 20; connected to the first housing 10 and enclosing a containing cavity A with the first housing 10; the containing cavity A includes an input shaft chamber A1, an intermediate shaft chamber A2, an output shaft chamber A3 and a ventilation chamber A4; an oil guide rib assembly 30; including a first oil guide rib 11 and a first annular rib 12 arranged on the first housing 10; a second oil guide rib 21 and a second annular rib 22 arranged on the second housing 20; the first annular rib 12 and the second annular rib 22 are connected to form an annular rib 200; the first oil guide rib 11 and the second oil guide rib 21 are both arranged between the intermediate shaft chamber A2 and the annular rib 200; the annular rib 200 is arranged around the input shaft chamber A1, the intermediate shaft chamber A2 and the output shaft chamber A3; the annular rib 200 and the inner wall of the first housing 10 and the inner wall of the second housing 20 form a ventilation chamber A4; a first opening B is arranged on the first annular rib 12 near the output shaft chamber A4.

[0032] In the actual lubrication process of the reducer lubrication system, the input shaft chamber A1, the intermediate shaft chamber A2, and the output shaft chamber A3 are respectively provided with the input shaft system, the intermediate shaft system, and the output shaft system; the input shaft system, the intermediate shaft system, and the output shaft system constitute the reducer reduction mechanism; the input shaft system includes the input shaft gear and the input shaft bearing; the intermediate shaft system includes the primary driven gear gear, the secondary driving gear, and the intermediate shaft bearing; the output shaft system includes the output shaft gear and the output shaft bearing; generally, when the input shaft gear in the input shaft chamber A1 rotates counterclockwise, the oil will be thrown onto the input shaft bearing, and the oil on the input bearing will be thrown into the output shaft system of the output shaft chamber A3 through the intermediate shaft system in the intermediate shaft chamber A2, and the oil will be thrown upwards as the output shaft system rotates counterclockwise;

[0033] The annular rib 200, the first oil guide rib 12, and the second oil guide rib 22 are all reinforcing ribs, which can play the role of guiding oil. The height of the annular rib 200 can actually be consistent with the height of the input shaft system, the intermediate shaft system and the output shaft system; the first oil guide rib 12 and the second oil guide rib 22 are lower than the annular rib 200; in this embodiment, most of the oil thrown upward by the output shaft system will flow back to the input shaft system of the input shaft chamber A1 through the annular rib 200 away from the inner wall of the first shell 10 and the inner wall of the second shell 20. Since the first oil guide rib 11 and the second oil guide rib 21 are both arranged between the intermediate shaft cavity A2 and the annular rib 200, the other part of the oil thrown out by the output shaft system flows back to the intermediate shaft system through the upper surfaces of the first oil guide rib 12 and the second oil guide rib 22, thus realizing the internal circulation process of the lubricating oil; wherein, the annular rib 200, the first oil guide rib 12, and the second oil guide rib 22 are all reinforcing ribs, which can also play the role of strengthening the strength and rigidity of each shell;

[0034] A first opening B is provided on the first annular rib 12 near the output shaft chamber A4, so that the gas outputted from the output shaft system of the output shaft chamber A3 is discharged through the first opening B; however, since the first opening B allows a small amount of oil thrown out of the output shaft system to enter the ventilation chamber A4 while realizing the discharge of the output gas, the small amount of oil thrown out of the output shaft system can be guided back to the input shaft system of the input shaft chamber A1 through the annular rib 200 near the inner wall of the first shell 10 and the inner wall of the second shell 20, thereby reducing the oil loss and facilitating the external circulation of the lubricating oil;

[0035] In this embodiment, the annular rib 200 can return part of the oil thrown out by the output shaft system to the input shaft system of the input shaft chamber, and return part of the oil to the intermediate shaft system through the first oil guide rib 12 and the second oil guide rib 22, thereby realizing internal circulation of the oil; at the same time, the first opening B discharges the gas output by the output shaft system of the output shaft chamber, and a small amount of oil thrown out by the output shaft system discharged through the first opening B is guided back to the input shaft system of the input shaft chamber A1 along the annular rib 200 close to the inner wall of the first shell 10 and the inner wall of the second shell 20, thereby avoiding oil loss and realizing external circulation of the oil; in this way, the reducer lubrication system does not need to set up an oil channel on the basis of realizing gas discharge, and the internal and external oil circulation is formed through the oil guide rib assembly 30, thereby realizing splash lubrication. The lubrication effect is not only simple and easy to implement, but also can meet the lubrication requirements of the reducer, and is low in cost, which plays a vital role in reducing the cost of the reducer.

[0036] Optionally, based on the above embodiment, Figure 4 is a schematic structural diagram of a second housing loaded with a reducer mechanism in a reducer lubrication system provided by an embodiment of the present invention; Figure 4As shown, the reducer lubrication system further includes: an oil guide groove 40; the oil guide groove 40 is arranged between the annular rib 200 and the input shaft bearing in the input shaft chamber A1.

[0037] Among them, the purpose of arranging the oil guide groove 40 between the annular rib 200 and the input shaft bearing in the input shaft chamber A1 in this embodiment is that: on the one hand, the oil guide groove 40 plays a role of confluence, and when the input shaft gear in the input shaft chamber A1 rotates, the oil thrown out is better introduced to the input shaft bearing, so that the oil on the input bearing is thrown into the output shaft system of the output shaft chamber A3 through the intermediate shaft system in the intermediate shaft chamber A2, so as to better lubricate the output shaft system; on the other hand, when a small amount of oil thrown out by the output shaft system is guided back to the input shaft system of the input shaft chamber A1 along the first opening B, the annular rib 200 close to the inner wall of the first shell 10 and the inner wall of the second shell 20, the oil guide groove 40 can play a role of drainage, and can better guide a small amount of oil along the first opening B, the annular rib 200 close to the inner wall of the first shell 10 and the inner wall of the second shell 20 back to the input bearing of the input shaft chamber A1 for the next lubrication cycle process, thereby improving the lubrication efficiency; preferably, the oil guide groove 40 can be an injection molded part.

[0038] Optional, Figure 5 is a schematic diagram of the structure of an oil guide groove provided by an embodiment of the present invention; Figure 4-5 As shown, the oil guide groove 40 includes a first oil guide portion 41, a second oil guide portion 42 and a recessed portion 43; the first oil guide portion 41 is connected to the upper bearing arm of the input shaft bearing; the second oil guide portion 42 is connected to the lower bearing arm of the input shaft bearing; the recessed portion 43 is arranged between the input shaft gear and the annular rib 200; in the horizontal extension direction of the input shaft gear, the distance between the recessed portion 43 and the annular rib 200 meets the preset distance l.

[0039] When the input shaft gear in the input shaft chamber A1 rotates counterclockwise, the oil will be thrown onto the first oil guide portion 41 and the second oil guide portion 42. Since the first oil guide portion 41 is connected to the upper bearing arm of the input shaft bearing; the second oil guide portion 42 is connected to the lower bearing arm of the input shaft bearing; the oil enters the upper and lower bearings of the input shaft respectively, and the oil on the input bearing is thrown into the output shaft system of the output shaft chamber A3 through the intermediate shaft system in the intermediate shaft chamber A.

[0040] In the horizontal extension direction of the input shaft gear, the distance between the concave portion 43 and the annular rib 200 satisfies the preset distance l, so that the oil is thrown onto the annular rib 200 by utilizing the large centrifugal effect of the oil and then rebounded onto the first oil guide portion 41 and the second oil guide portion 42, so that the oil is fully thrown onto the first oil guide portion 41 and the second oil guide portion 42, which is more conducive to lubrication of the upper and lower bearings of the input shaft. It can be understood that the preset distance l can be satisfied between several millimeters, and the specific value is not limited in this embodiment.

[0041] Optional, continue to refer to Figure 2 and Figure 3 The oil guide rib assembly 30 also includes a first oil blocking rib 13 arranged on the first shell 10 and a second oil blocking rib 23 arranged on the second shell 20; the first oil blocking rib 13 and the second oil blocking rib 23 are connected to form an oil blocking rib 300; the oil blocking rib 100 is arranged at the first opening B.

[0042] Among them, the first oil retaining rib 13 and the second oil retaining rib 23 are both reinforcing ribs, which can play the role of guiding oil; since the first opening B allows a small amount of oil thrown out of the output shaft system to enter the ventilation chamber A4 while realizing the discharge of the output gas, the present embodiment sets an oil retaining rib 300 at the first opening B, so as to prevent more oil thrown out of the output shaft system from entering the ventilation chamber A4; this is conducive to most of the oil thrown out of the output shaft system to flow back to the input shaft system of the output shaft chamber A1 through the annular rib 200 away from the inner wall side of the first shell 10, or away from the inner wall side of the second shell 20, and is also conducive to the other part of the oil thrown out of the output shaft system to flow back to the intermediate shaft system through the upper surface of the first oil guide rib 12 and the second oil guide rib 22, that is, it is conducive to the internal circulation process of the lubricating oil. In addition, the first oil retaining rib 13 and the second oil retaining rib 23 are both reinforcing ribs, which can also play the role of strengthening the strength and rigidity of each shell.

[0043] Optional, continue to refer to Figure 2 and Figure 3 The oil guide rib assembly 30 also includes a third oil guide rib 14 arranged on the first shell 10; a fourth oil guide rib 24 arranged on the second shell 20; the third oil guide rib 14 includes a first oil return port 141 and a vent hole 142; the third oil guide rib 14 and the fourth oil guide rib 24 are connected to form a first straight rib 400; the first straight rib 400 is in the ventilation chamber A4; the annular rib 200 also includes an oil return through hole C.

[0044] Among them, since the first opening B can bring a small amount of oil thrown out of the output shaft system into the ventilation chamber A4 while realizing the discharge of the output gas from the ventilation chamber A4, in order to avoid excessive pressure in the ventilation chamber A4 caused by the mixing of oil and gas, the third oil guide rib 14 in this embodiment includes a first oil return port 141 and a vent hole 142, so that a small amount of oil thrown out of the output shaft system can be guided back to the input shaft system of the input shaft chamber A1 through the first opening B, the first oil return port 141, and the oil return through hole C; and the gas output by the output shaft system of the output shaft chamber A3 is discharged from the ventilation chamber A4 through the vent hole 142. Compared with the technology in which only vent holes are set, this embodiment forms a two-way reflux of oil and gas to avoid the accumulation of oil in the ventilation chamber A4, thereby causing oil leakage in the reducer lubrication system. Of course, it can be understood that, in addition, the third oil guide rib 14 and the fourth oil guide rib 24 are both reinforcing ribs, which can also play a role in strengthening the strength and rigidity of each shell.

[0045] Optional, continue to refer to Figure 2 and Figure 3 The oil guide rib assembly 30 also includes a fifth oil guide rib 15 arranged on the first shell 10; a sixth oil guide rib 25 arranged on the second shell 20; the sixth oil guide rib 25 includes a second oil return port 251; the fifth oil guide rib 15 and the sixth oil guide rib 25 are connected to form a second straight rib 500; the second straight rib 500 is in the ventilation chamber A4.

[0046] The fifth oil guide rib 15 and the sixth oil guide rib 25 in the ventilation chamber A4 are both reinforcing ribs, which can further enhance the strength and rigidity of the ventilation chamber A4. Considering the gas discharge through the first opening B and the discharge of a small amount of oil thrown out by the output shaft system, a second oil return port 251 is provided on the sixth oil guide rib 25. Figure 6 : is a diagram of the oil return path and the gas discharge path from the perspective of the first shell provided by an embodiment of the present invention, such as Figure 6 As shown, the small amount of oil thrown out by the output shaft system can be guided back to the input shaft system of the input shaft chamber A1 through the first opening B, the second oil return port 251, the first oil return port 141, and the oil return through hole C; and the gas output by the output shaft system of the output shaft chamber A3 is discharged from the ventilation chamber A4 through the second oil return port 251 and the vent hole 142. In this way, while the strength and rigidity of the ventilation chamber A4 are enhanced, the gas discharge and the discharge of the small amount of oil thrown out by the output shaft system are not affected.

[0047] In addition, the second straight rib 500 formed by connecting the fifth oil guide rib 15 and the sixth oil guide rib 25 can block the small amount of oil-gas mixture thrown out by the output shaft system, and can solidify the small amount of oil-gas mixture into oil that falls into the ventilation chamber A, and further guide it back to the input shaft system of the input shaft chamber through the second oil return port 251, the first oil return port 141, and the oil return through hole C, thereby realizing the lubrication circulation of the oil.

[0048] Optional, continue to refer to Figure 2 and Figure 3 The oil guide rib assembly 30 also includes a seventh oil guide rib 16 disposed on the first housing 10; the seventh oil guide rib 16 connects the intermediate shaft system and the annular rib 200; the seventh oil guide rib 16 is disposed between the first oil guide rib 12 and the input shaft system A1 in the input shaft cavity.

[0049] Among them, the seventh oil guide rib 16 is also a reinforcing rib, which can play a role in blocking the oil thrown out by the input shaft system; the seventh oil guide rib 16 is arranged between the first oil guide rib 12 and the input shaft system A1 in the input shaft cavity, so as to block the oil thrown out by the input shaft system, which is beneficial to the lubrication of the input shaft system, and thus beneficial to the lubrication of the intermediate shaft system.

[0050] Optional, continue to refer to Figure 2 and Figure 3 The first oil guide rib 12 and the second oil guide rib 22 both include a protrusion. The first oil guide rib 12 and the second oil guide rib 22 both include a protrusion, which is convenient for casting and can increase the rigidity of each shell at the same time; the rib width of the first oil guide rib 12 and the second oil guide rib 22 can be a specific value, which can be determined according to the volume of the accommodating cavity of the reducer lubrication system, and the rib width is not specifically limited here.

[0051] Based on the same inventive concept, the embodiment of the present invention further provides a reducer, and further reference is made to Figure 4 The reducer includes the reducer lubrication system of the above embodiment; and also includes: an input shaft system A11 in the input shaft chamber A1; an intermediate shaft system A21 in the intermediate shaft chamber A2 and an output shaft system A31 in the output shaft chamber A3; the intermediate shaft system A21 includes a primary driven gear A211, a secondary driven gear A212 and an intermediate shaft bearing A213; the input shaft system A11 includes an input shaft gear A111 and an input shaft bearing A112; the output shaft system A31 includes an output shaft gear A311 and an output shaft bearing A312. During the driving process of the vehicle, the components of the input shaft system A11, the intermediate shaft system A21 and the output shaft system A31 in the reducer are in high-speed operation, which is easy to generate more heat. At the same time, the components of the input shaft system A11, the intermediate shaft system A21 and the output shaft system A31 play a role with each other and need to be lubricated continuously. The reducer lubrication system described in the above embodiment can better realize the lubrication of the reducer by using the reducer lubrication system described in the above embodiment, and also plays a role in cooling and taking away the heat in the reducer.

[0052] Based on the same inventive concept, an embodiment of the present invention further provides a vehicle, which may include a pure electric vehicle, a hybrid vehicle, and a gasoline vehicle; the vehicle includes the reducer described in the above embodiment. Since the vehicle includes the reducer described in the above embodiment, it also has the beneficial effects of the above embodiment, and this embodiment will not be described in detail.

[0053] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A reducer lubrication system, characterized in that: include: a first shell; a second shell; connected to the first housing, and enclosed with the first housing to form a containing cavity; the containing cavity includes an input shaft cavity, an intermediate shaft cavity, an output shaft cavity and a ventilation cavity; The oil guide rib assembly comprises a first oil guide rib and a first annular rib arranged on the first shell; a second oil guide rib and a second annular rib arranged on the second shell; the first annular rib and the second annular rib are connected to form an annular rib; The first oil guide rib and the second oil guide rib are both arranged between the intermediate shaft cavity and the annular rib; the annular rib is arranged around the input shaft cavity, the intermediate shaft cavity and the output shaft cavity; the annular rib and the first shell inner wall and the second shell inner wall form the ventilation cavity; a first opening is arranged on the first annular rib on a side close to the output shaft cavity.

2. The reducer lubrication system according to claim 1, characterized in that: Also includes: An oil guide groove; the oil guide groove is arranged between the annular rib and the input shaft bearing in the input shaft chamber.

3. The reducer lubrication system according to claim 2, characterized in that: The oil guide groove includes a first oil guide portion, a second oil guide portion and a concave portion; the first oil guide portion is connected to the upper bearing arm of the input shaft bearing; the second oil guide portion is connected to the lower bearing arm of the input shaft bearing; The concave portion is arranged between the input shaft gear and the annular rib; In the horizontal extension direction of the input shaft gear, the distance between the recessed portion and the annular rib meets a preset distance.

4. The reducer lubrication system according to claim 1, characterized in that: The oil guide rib assembly also includes a first oil blocking rib arranged on the first shell and a second oil blocking rib arranged on the second shell; the first oil blocking rib and the second oil blocking rib are connected to form an oil blocking rib; the oil blocking rib is arranged at the first opening.

5. The reducer lubrication system according to claim 1, characterized in that: The oil guide rib assembly further includes a third oil guide rib arranged on the first shell; a fourth oil guide rib arranged on the second shell; the third oil guide rib includes a first oil return port and a vent hole; the third oil guide rib and the fourth oil guide rib are connected to form a first straight rib; the first straight rib is in the ventilation chamber; The annular rib also includes an oil return through hole.

6. The reducer lubrication system according to claim 5, characterized in that: The oil guide rib assembly also includes a fifth oil guide rib arranged on the first shell; a sixth oil guide rib arranged on the second shell; the sixth oil guide rib includes a second oil return port; the fifth oil guide rib and the sixth oil guide rib are connected to form a second straight rib; the second straight rib is in the ventilation chamber.

7. The reducer lubrication system according to claim 1, characterized in that: The oil guide rib assembly also includes a seventh oil guide rib arranged on the first housing; the seventh oil guide rib connects the intermediate shaft system and the annular rib; the seventh oil guide rib is arranged between the first oil guide rib and the input shaft system in the input shaft cavity.

8. The reducer lubrication system according to claim 2, characterized in that: The first oil guiding rib and the second oil guiding rib both include a protruding portion.

9. A reducer, characterized in that: It includes the reducer lubrication system as described in any one of claims 1 to 8 above; it also includes: an input shaft system in the input shaft chamber; an intermediate shaft system in the intermediate shaft chamber and an output shaft system in the output shaft chamber; the intermediate shaft system includes a primary driven gear, a secondary driven gear and an intermediate shaft bearing; the input shaft system includes an input shaft gear and an input shaft bearing; the output shaft system includes an output shaft gear and an output shaft bearing.

10. A vehicle, characterized in that: The reducer comprises the reducer as described in claim 9 above.

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