Shell of speed reducer and speed reducer

Abstract

The shell is provided with a first bearing chamber, a second bearing chamber, an oil storage area, a first oil hole and a second oil hole, the first oil hole is communicated with the oil storage area and the first bearing chamber, and the second oil hole is communicated with the oil storage area and the second bearing chamber. An amount of oil flowing to the first bearing chamber via the oil storage region is different from an amount of oil flowing to the second bearing chamber via the oil storage region. Different kinds of lubricating oil can be distributed to the first bearing chamber and the second bearing chamber by reasonably designing the oil quantity of the lubricating oil distributed to the first bearing chamber and the second bearing chamber by the oil storage area. On one hand, the situation that lubricating oil is wasted due to the fact that the amount of the lubricating oil flowing to the first bearing chamber and / or the second bearing chamber is large can be effectively avoided; and on the other hand, the situation that the bearing arranged in the first bearing chamber and / or the second bearing chamber is abraded due to the fact that the amount of lubricating oil flowing to the first bearing chamber and / or the second bearing chamber is small can be avoided.

Description

Technical Field

[0001] This disclosure relates to the field of reducer bearing lubrication technology, specifically to a reducer housing and a reducer. Background Technology

[0002] The reducer is an important component of the automotive transmission system. As vehicles now demand higher efficiency from the entire transmission system, the lubrication requirements for the bearings inside the reducer are also increasing. If too much lubricating oil is used to lubricate a particular bearing, it will result in waste of lubricating oil. If too little lubricating oil is used to lubricate a particular bearing, it will lead to wear of the bearing. Summary of the Invention

[0003] The purpose of this disclosure is to provide a housing and a reducer to solve the problems existing in the related art.

[0004] According to a first aspect of the present disclosure, a housing for a speed reducer is provided, the housing having a first bearing chamber, a second bearing chamber, an oil reservoir, a first oil hole, and a second oil hole; The first oil hole connects the oil storage area and the first bearing chamber, and the second oil hole connects the oil storage area and the second bearing chamber; The amount of oil flowing from the oil storage area to the first bearing chamber is different from the amount of oil flowing from the oil storage area to the second bearing chamber.

[0005] Optionally, the oil storage area further includes an oil inlet opening, which is connected to the oil inlet end of the second oil hole, and the height of the oil inlet end of the first oil hole is lower than the height of the lowest point of the oil inlet opening.

[0006] Optionally, the oil inlet end of the first oil hole is located on the inner wall of the oil storage area; The lowest height of the oil storage area is lower than the height of the oil inlet end of the first oil hole.

[0007] Optionally, the diameter of the first oil hole is different from the diameter of the second oil hole.

[0008] Optionally, the diameter of the first oil hole is greater than or equal to 5 mm and less than or equal to 6 mm; and / or, The diameter of the second oil hole is greater than or equal to 5.5 mm and less than or equal to 7 mm.

[0009] Optionally, the inner wall of the housing has an outwardly recessed receiving groove, and the housing further includes an oil baffle plate that covers the receiving groove and encloses and defines the oil storage area with the receiving groove.

[0010] Optionally, the first bearing chamber and the second bearing chamber are arranged along a first direction, and the oil storage area is located on the upper side of the first bearing chamber.

[0011] Optionally, the housing includes a first housing and a second housing, the first housing and the second housing being connected together; Both the first housing and the second housing include the first bearing chamber and the second bearing chamber; Both the first bearing housing and the second bearing housing are suitable for mounting transmission gears.

[0012] According to a second aspect of this disclosure, a speed reducer is provided, including a transmission gear set and a housing of the speed reducer as described above, wherein the oil reservoir is used to lubricate the bearings of the transmission gear set.

[0013] Optionally, the transmission gear set includes a first gear, a second gear, a third gear, and a fourth gear; The housing has a receiving cavity, and the first gear, the second gear, the third gear, and the fourth gear are all disposed within the receiving cavity; The first gear and the fourth gear are sleeved on the first drive shaft of the reducer. The first gear is adapted to be connected to the input end of the reducer, and the fourth gear is adapted to be connected to the differential. The second gear and the third gear are sleeved on the second transmission shaft of the reducer, the second gear meshes with the first gear, and the third gear meshes with the fourth gear.

[0014] Through the above technical solution, since the amount of oil flowing from the oil storage area to the first bearing chamber differs from the amount flowing from the oil storage area to the second bearing chamber, in other words, the oil storage area can distribute different amounts of lubricating oil to the first and second bearing chambers respectively. Thus, by rationally designing the amount of lubricating oil distributed from the oil storage area to the first and second bearing chambers, different amounts of lubricating oil can be allocated to the first and second bearing chambers, thereby meeting their different lubrication needs. On the one hand, this effectively avoids the waste of lubricating oil due to excessive flow to the first and / or second bearing chambers; on the other hand, it also avoids the wear of the bearings located in the first and / or second bearing chambers due to insufficient flow of lubricating oil.

[0015] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a front view schematic diagram of the housing of a speed reducer provided in an exemplary embodiment of this disclosure.

[0017] Figure 2 This is an exploded three-dimensional structural diagram of the housing of a reducer provided in an exemplary embodiment of this disclosure.

[0018] Figure 3 This is an exploded three-dimensional structural diagram of the housing of a reducer provided in an exemplary embodiment of this disclosure.

[0019] Figure 4 This is a partial cross-sectional schematic diagram of the housing of a speed reducer provided in an exemplary embodiment of this disclosure.

[0020] Figure 5 This is an exploded three-dimensional structural diagram of the housing of a reducer provided in an exemplary embodiment of this disclosure.

[0021] Figure 6 This is a front view schematic diagram of the housing of a speed reducer provided in an exemplary embodiment of the present disclosure, wherein an intermediate housing and bearings are shown.

[0022] Figure 7 This is a three-dimensional structural diagram of an intermediate shell provided in an exemplary embodiment of this disclosure.

[0023] Figure 8 This is a cross-sectional schematic diagram of an exemplary embodiment of the intermediate housing provided in this disclosure.

[0024] Figure 9 This is an exploded three-dimensional structural diagram of a speed reducer provided in an exemplary embodiment of this disclosure.

[0025] Figure 10 This is a schematic diagram of a speed reducer provided in an exemplary embodiment of the present disclosure.

[0026] Explanation of reference numerals in the attached figures 100-Reducer; 10-Housing; 11-First bearing chamber; 12-Second bearing chamber; 13-Oil reservoir; 131-Oil inlet; 14-First oil hole; 141-Oil inlet end; 15-Second oil hole; 16-Oil baffle; 17-Intermediate housing; 171-Third bearing chamber; 172-Third oil hole; 20-First housing; 30-Second housing; 41-First gear; 42-Second gear; 43-Third gear; 44-Fourth gear; 50-Bearing. Detailed Implementation

[0027] The specific embodiments of this disclosure 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 this disclosure.

[0028] In this disclosure, it should be understood that directional terms such as "upper" and "lower" are defined according to the orientation of the accompanying drawings and are used only for the convenience of describing this disclosure and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational construction and operation, and therefore should not be construed as a limitation of this disclosure. The terms "inner" and "outer" refer to the inside and outside of the corresponding structural outline. Furthermore, it should be noted that the terms used, such as "first" and "second," are used to distinguish one element from another and do not have sequential or importance implications. Additionally, in the description with reference to the accompanying drawings, the same reference numerals in different drawings denote the same element.

[0029] In the description of this disclosure, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "connect," "link," and "install" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0030] like Figures 1 to 10 As shown, according to a first aspect of the present disclosure, a housing 10 of a reducer 100 is provided. The housing 10 has a first bearing chamber 11, a second bearing chamber 12, an oil reservoir 13, a first oil hole 14, and a second oil hole 15. The first oil hole 14 connects the oil reservoir 13 and the first bearing chamber 11, and the second oil hole 15 connects the oil reservoir 13 and the second bearing chamber 12. The amount of oil flowing from the oil reservoir 13 to the first bearing chamber 11 is different from the amount of oil flowing from the oil reservoir 13 to the second bearing chamber 12.

[0031] In the housing 10 of the aforementioned reducer 100, since the oil storage area 13 provided on the housing 10 is connected to the first bearing chamber 11 and the second bearing chamber 12 through the first oil hole 14 and the second oil hole 15 respectively, during the operation of the reducer 100, the lubricating oil can flow to the first bearing chamber 11 and the second bearing chamber 12 through the first oil hole 14 and the second oil hole 15 respectively, thereby lubricating the bearings 50 provided in the first bearing chamber 11 and the second bearing chamber 12. The lubrication effect of the bearings 50 in the reducer 100 is good, and the friction and wear of the bearings 50 are small.

[0032] Through the above technical solution, since the amount of oil flowing from the oil storage area 13 to the first bearing chamber 11 is different from the amount of oil flowing from the oil storage area 13 to the second bearing chamber 12, in other words, the oil storage area 13 can distribute different amounts of lubricating oil to the first bearing chamber 11 and the second bearing chamber 12 respectively. Thus, by rationally designing the amount of lubricating oil distributed by the oil storage area 13 to the first bearing chamber 11 and the second bearing chamber 12, different amounts of lubricating oil can be distributed to the first bearing chamber 11 and the second bearing chamber 12, thereby meeting the different lubrication needs of the first bearing chamber 11 and the second bearing chamber 12. On the one hand, it can effectively avoid the situation where excessive lubricating oil flows to the first bearing chamber 11 and / or the second bearing chamber 12, leading to lubricating oil waste; on the other hand, it can also avoid the situation where insufficient lubricating oil flows to the first bearing chamber 11 and / or the second bearing chamber 12, leading to wear of the bearings 50 installed in the first bearing chamber 11 and / or the second bearing chamber 12.

[0033] This disclosure does not limit the specific method by which the oil storage area 13 is allocated to the first bearing chamber 11 and the second bearing chamber 12 with different amounts of oil. As one embodiment of this disclosure, for example... Figure 1 , Figure 2 and Figure 4 As shown, the oil storage area 13 also includes an oil inlet opening 131, which is connected to the oil inlet end of the second oil hole 15. The height of the oil inlet end 141 of the first oil hole 14 is lower than the height of the lowest point of the oil inlet opening 131.

[0034] First, it should be noted that the oil inlet end 141 of the first oil hole 14 refers to the end of the first oil hole 14 connected to the oil storage area 13, and the oil inlet end of the second oil hole 15 refers to the end of the second oil hole 15 connected to the oil storage area 13.

[0035] Since the height of the oil inlet end 141 of the first oil hole 14, which is connected to the first bearing chamber 11, is lower than the height of the lowest point of the oil inlet opening 131, it can be understood that when lubricating oil flows into the oil storage area 13 through the oil inlet opening 131, the lubricating oil will first be stored in the oil storage area 13 and then flow to the first bearing chamber 11 through the oil inlet end 141 of the first oil hole 14, thereby lubricating the bearing 50 installed in the first bearing chamber 11. Only when the lubricating oil in the oil storage area 13 reaches the preset volume can the lubricating oil in the oil storage area 13 overflow from the oil inlet opening 131 of the oil storage area 13 and flow to the second bearing chamber 12 through the second oil hole 15, thereby lubricating the bearing 50 installed in the second bearing chamber 12. In other words, by setting the height of the oil inlet end 141 of the first oil hole 14 to be lower than the lowest point of the oil inlet opening 131, the oil storage area 13 can be allocated different amounts of oil to the first bearing chamber 11 and the second bearing chamber 12, thereby meeting the different lubrication needs of the first bearing chamber 11 and the second bearing chamber 12. That is, more lubricating oil in the oil storage area 13 can flow to the first bearing chamber 11, while less lubricating oil in the oil storage area 13 can flow to the second bearing chamber 12.

[0036] This disclosure does not limit the specific connection relationship between the first oil hole 14, the second oil hole 15, and the oil storage area 13. As one embodiment of this disclosure, for example... Figure 1 , Figure 2 and Figure 4 As shown, the first oil hole 14 is connected to the side wall of the oil storage area 13, and the second oil hole 15 is connected to the oil storage area 13 through the oil inlet opening 131 of the oil storage area 13.

[0037] As other embodiments of this disclosure, such as Figure 2 and Figure 4 As shown, the oil inlet end of the first oil hole 14 and the oil inlet end of the second oil hole 15 can both be connected to the inner wall of the oil storage area 13.

[0038] In the embodiment where the height of the oil inlet end 141 of the first oil hole 14 is lower than the height of the lowest point of the oil inlet opening 131, this disclosure does not limit the specific structure of the oil storage area 13. As one embodiment of this disclosure, such as... Figure 1 and Figure 2 As shown, along the direction from the oil inlet end 141 of the first oil hole 14 to the oil inlet opening 131 of the oil storage area 13, the height of the bottom wall of the oil storage area 13 gradually increases.

[0039] In another embodiment of this disclosure, along the direction from the oil inlet end 141 of the first oil hole 14 to the oil inlet opening 131 of the oil storage area 13, the height of the bottom wall of the oil storage area 13 first increases and then decreases.

[0040] In order to enable the oil reservoir 13 to continuously supply oil to the first bearing chamber 11 and / or the second bearing chamber 12, thereby meeting the continuous lubrication requirements of the first bearing chamber 11 and / or the second bearing chamber 12, optionally, such as Figure 1 , Figure 2 and Figure 4 As shown, the oil inlet end 141 of the first oil hole 14 is located on the inner wall of the oil storage area 13, and the lowest point of the oil storage area 13 is lower than the height of the oil inlet end 141 of the first oil hole 14. Since the lowest point of the oil storage area 13 is lower than the height of the oil inlet end 141 of the first oil hole 14, when lubricating oil flows into the oil storage area 13 through the oil inlet opening 131, the lubricating oil will first accumulate in the oil storage area 13. Only when the lubricating oil in the oil storage area 13 reaches a certain amount will the lubricating oil in the oil storage area 13 flow through the first oil hole 14 to the first bearing chamber 11 to lubricate the bearing 50 installed in the first bearing chamber 11.

[0041] Here, it can be understood that, in the embodiment described above where both the first bearing chamber 11 and the second bearing chamber 12 are connected to the oil storage area 13 through an opening, if the lowest height of the oil storage area 13 is lower than the height of the opening, when lubricating oil flows into the oil storage area 13 through the oil inlet opening 131, the lubricating oil will first accumulate in the oil storage area 13. Only when the lubricating oil in the oil storage area 13 reaches a certain amount will the lubricating oil in the oil storage area 13 flow through the first oil hole 14 to the first bearing chamber 11 and the second bearing chamber 12, thereby lubricating the bearings 50 installed in the first bearing chamber 11 and the second bearing chamber 12.

[0042] In order to enable the oil storage area 13 to distribute different amounts of oil to the first bearing chamber 11 and the second bearing chamber 12, this disclosure is not limited to the embodiment in which the height of the oil inlet end 141 of the first oil hole 14 is lower than the height of the lowest point of the oil inlet opening 131. As another embodiment of this disclosure, the diameter of the first oil hole 14 is different from the diameter of the second oil hole 15. Since the diameters of the first oil hole 14 and the second oil hole 15 are different, the amount of lubricating oil flowing to the first bearing chamber 11 through the first oil hole 14 per unit time is different from the amount of lubricating oil flowing to the second bearing chamber 12 through the second oil hole 15, which can also meet the different lubrication needs of the first bearing chamber 11 and the second bearing chamber 12.

[0043] This disclosure does not limit the specific diameter of the first oil hole 14, as long as the lubricating oil flowing into the first bearing chamber 11 through the first oil hole 14 can meet the lubrication requirements of the bearing 50 installed in the first bearing chamber 11. As one embodiment of this disclosure, the diameter of the first oil hole 14 is greater than or equal to 5 mm and less than or equal to 6 mm. Since the diameter of the first oil hole 14 is greater than or equal to 5 mm, the amount of lubricating oil flowing into the first bearing chamber 11 through the first oil hole 14 will not be insufficient, effectively avoiding the situation where the amount of lubricating oil flowing into the first bearing chamber 11 is insufficient, leading to wear of the bearing 50 installed in the first bearing chamber 11.

[0044] In addition, since the diameter of the first oil hole 14 is less than or equal to 6mm, the amount of lubricating oil flowing into the first bearing chamber 11 through the first oil hole 14 will not be too much, which also effectively avoids the situation where too much lubricating oil flows into the first bearing chamber 11, resulting in lubricating oil waste.

[0045] This disclosure does not limit the specific diameter of the second oil hole 15, as long as the lubricating oil flowing into the second bearing chamber 12 through the second oil hole 15 can meet the lubrication requirements of the bearing 50 installed in the second bearing chamber 12. As one embodiment of this disclosure, the diameter of the second oil hole 15 is greater than or equal to 5.5 mm and less than or equal to 7 mm. Since the diameter of the second oil hole 15 is greater than or equal to 5.5 mm, the amount of lubricating oil flowing into the second bearing chamber 12 through the second oil hole 15 will not be insufficient, effectively avoiding the situation where the amount of lubricating oil flowing into the second bearing chamber 12 is insufficient, leading to wear of the bearing 50 installed in the second bearing chamber 12.

[0046] In addition, since the diameter of the second oil hole 15 is less than or equal to 7mm, the amount of lubricating oil flowing into the second bearing chamber 12 through the second oil hole 15 will not be too much, which also effectively avoids the situation where too much lubricating oil flows into the second bearing chamber 12, resulting in lubricating oil waste.

[0047] This disclosure does not limit the specific structure of the oil storage area 13. As one embodiment of this disclosure, such as Figures 1 to 4 As shown, the inner wall of the housing 10 has an outwardly recessed receiving groove. The housing 10 also includes an oil baffle 16, which covers the receiving groove and encloses and defines the oil storage area 13.

[0048] This disclosure does not limit the type of the oil baffle 16. The oil baffle 16 can be a plate-shaped member disposed within the housing 10, or it can be part of the housing 10, as long as the oil baffle 16 can cooperate with the receiving groove to enclose and define the aforementioned oil storage area 13. As one embodiment of this disclosure, such as Figures 5 to 8As shown, the oil baffle 16 is constructed as part of the housing 10. For example, the oil baffle 16 can be an intermediate housing 17 disposed between the two housings 10 of the reducer 100 (i.e., the first housing 20 and the second housing 30 hereinafter). With this design, the intermediate housing 17 can be used to install the bearing 50, and the intermediate housing 17 can also cooperate with the housing 10 to form the oil reservoir 13 described above, thereby lubricating the bearing 50. The intermediate housing 17 has strong practicality.

[0049] In the embodiment where a third bearing 50 chamber 171 is provided on the intermediate housing 17, optionally, as... Figure 7 and Figure 8 As shown, a third oil hole 172 may also be provided on the intermediate housing 17. The third oil hole 172 connects the oil storage area 13 with the third bearing 50 chamber 171 provided on the intermediate housing 17. In this way, lubricating oil can also flow through the oil storage area 13 to the third bearing 50 chamber 171 and lubricate the bearing 50 provided in the third bearing 50 chamber 171.

[0050] Optionally, the diameter of the third oil hole 172 is greater than or equal to 5.5 mm and less than or equal to 6.5 mm. Since the diameter of the third oil hole 172 is greater than or equal to 5.5 mm, the amount of lubricating oil flowing into the third bearing 50 chamber 171 through the third oil hole 172 will not be insufficient. This effectively avoids the situation where insufficient lubricating oil flows into the third bearing 50 chamber 171, leading to wear of the bearing 50 located within the third bearing 50 chamber 171.

[0051] In addition, since the diameter of the third oil hole 172 is less than or equal to 6.5 mm, the amount of lubricating oil flowing into the third bearing 50 chamber 171 through the third oil hole 172 will not be excessive, which effectively avoids the situation where too much lubricating oil flows into the third bearing 50 chamber 171, resulting in lubricating oil waste.

[0052] This disclosure does not limit the specific location of the oil storage area 13 on the housing 10. The oil storage area 13 can be set in any suitable location. As one embodiment of this disclosure, the first bearing chamber 11 and the second bearing chamber 12 are arranged along a first direction, and the oil storage area 13 is located on the upper side of the first bearing chamber 11. Since the oil storage area 13 is located on the upper side of the first bearing chamber 11, during the operation of the reducer 100, the gear can agitate the lubricating oil deposited at the bottom of the reducer 100 and cause the lubricating oil to splash and flow into the oil storage area 13 through the oil inlet 131. The circulation of lubricating oil in the reducer 100 can be achieved without the need for other driving components, which helps to simplify the overall structure and reduce the cost of the reducer 100.

[0053] Optionally, such as Figure 9As shown, the aforementioned housing 10 may include a first housing 20 and a second housing 30, which are connected together. Both the first housing 20 and the second housing 30 include a first bearing chamber 11 and a second bearing chamber 12, which are both suitable for mounting transmission gears. The first housing 20 and the second housing 30 are assembled together to form the housing 10 of the entire reducer 100.

[0054] It should be noted that when housing 10 is applied to the reducer 100 mentioned below, the first housing 20 can be the main housing of the reducer 100, and the second housing 30 can be the front housing of the reducer 100. The first bearing chamber 11 in the first housing 20 can be used to install the first gear 41, the second bearing chamber 12 in the first housing 20 can be used to install the second gear 42, and the first bearing chamber 11 in the second housing 30 can be used to install the fourth gear 44, and the second bearing chamber 12 in the second housing 30 can be used to install the third gear 43. In this way, the bearings of the first gear 41, the second gear 42, the third gear 43, and the fourth gear 44 can be lubricated simultaneously through the oil reservoir 13, the first oil hole 14, and the second oil hole 15.

[0055] Furthermore, in the first housing 20 and the second housing 30 described above, lubricating oil can also be distributed through the oil storage area 13, the first oil hole 14 and the second oil hole 15, thereby meeting the different lubrication needs of the bearings 50 located in the first bearing chamber 11 and the second bearing chamber 12.

[0056] According to a second aspect of this disclosure, a speed reducer 100 is provided, including a transmission gear set and a housing 10 of the speed reducer 100 as described above, with an oil reservoir 13 for lubricating the bearing 50 of the transmission gear set.

[0057] The reducer 100 has all the beneficial effects of the housing 10 described above, which will not be repeated here.

[0058] Optionally, such as Figure 9 and Figure 10As shown, the transmission gear set includes a first gear 41, a second gear 42, a third gear 43, and a fourth gear 44. A receiving cavity is provided within the housing 10. The first gear 41, second gear 42, third gear 43, and fourth gear 44 are all housed within the receiving cavity. The first gear 41 and fourth gear 44 are sleeved on the first drive shaft of the reducer 100. The first gear 41 is adapted to connect to the input end of the reducer 100, and the fourth gear 44 is adapted to drive the differential. The second gear 42 and third gear 43 are sleeved on the second drive shaft of the reducer 100. The second gear 42 meshes with the first gear 41, and the third gear 43 meshes with the fourth gear 44. The first gear 41, second gear 42, third gear 43, and fourth gear 44 can cooperate with each other to transmit the speed and torque input from the input end of the reducer 100 to the differential, and then to other equipment, such as the wheels of a vehicle, through the differential.

[0059] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0060] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0061] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A housing for a speed reducer, characterized in that, The housing has a first bearing chamber, a second bearing chamber, an oil storage area, a first oil hole, and a second oil hole; The first oil hole connects the oil storage area and the first bearing chamber, and the second oil hole connects the oil storage area and the second bearing chamber; The amount of oil flowing from the oil storage area to the first bearing chamber is different from the amount of oil flowing from the oil storage area to the second bearing chamber.

2. The housing according to claim 1, characterized in that, The oil storage area also includes an oil inlet opening, which is connected to the oil inlet end of the second oil hole, and the height of the oil inlet end of the first oil hole is lower than the height of the lowest point of the oil inlet opening.

3. The housing according to claim 2, characterized in that, The oil inlet end of the first oil hole is located on the inner wall of the oil storage area; The lowest height of the oil storage area is lower than the height of the oil inlet end of the first oil hole.

4. The housing according to claim 1, characterized in that, The diameter of the first oil hole is different from the diameter of the second oil hole.

5. The housing according to claim 4, characterized in that, The diameter of the first oil hole is greater than or equal to 5 mm and less than or equal to 6 mm; and / or, The diameter of the second oil hole is greater than or equal to 5.5 mm and less than or equal to 7 mm.

6. The housing according to claim 1, characterized in that, The inner wall of the housing has an outwardly recessed receiving groove, and the housing also includes an oil baffle plate that covers the receiving groove and encloses and defines the oil storage area.

7. The housing according to any one of claims 1-6, characterized in that, The first bearing chamber and the second bearing chamber are arranged along a first direction, and the oil storage area is located on the upper side of the first bearing chamber.

8. The housing according to any one of claims 1-6, characterized in that, The housing includes a first housing and a second housing, and the first housing and the second housing are connected together. Both the first housing and the second housing include the first bearing chamber and the second bearing chamber; Both the first bearing housing and the second bearing housing are suitable for mounting transmission gears.

9. A speed reducer, characterized in that, The device includes a transmission gear set and a housing of a reducer according to any one of claims 1-8, wherein the oil reservoir is used to lubricate the bearings of the transmission gear set.

10. The reducer according to claim 9, characterized in that, The transmission gear set includes a first gear, a second gear, a third gear, and a fourth gear; The housing has a receiving cavity, and the first gear, the second gear, the third gear, and the fourth gear are all disposed within the receiving cavity; The first gear and the fourth gear are sleeved on the first drive shaft of the reducer. The first gear is adapted to be connected to the input end of the reducer, and the fourth gear is adapted to be connected to the differential. The second gear and the third gear are sleeved on the second transmission shaft of the reducer, the second gear meshes with the first gear, and the third gear meshes with the fourth gear.

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