Lubricating device applied to differential assembly

Abstract

The utility model discloses a lubricating device applied to a differential mechanism assembly, and relates to the technical field of automobile parts, the differential mechanism assembly comprises a gear, the lubricating device comprises a sleeve joint piece with a first sleeve joint part and a second sleeve joint part, the first sleeve joint part is sleeved outside the gear, and the second sleeve joint part is sleeved outside the gear. The cross section size of the first sleeving part is smaller than that of the gear, so that a part of the cross section of the gear exceeds the edge of the first sleeving part; wherein the side, away from the gear, of the first sleeving part is connected with the second sleeving part, and the size, close to the first sleeving part, of the second sleeving part extends to the other end from large to small, so that a cavity is jointly formed between the second sleeving part and the gear, and the cavity is used for containing lubricating oil. By means of the arrangement, when the lubricating oil liquid is located at the low liquid level, it can be guaranteed that enough lubricating oil liquid lubricates the bearing through the lubricating oil liquid in the cavity.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, and specifically relates to a lubricating device applied to a differential assembly. Background Art

[0002] An automotive differential can make the left and right or front and rear drive wheels rotate at different speeds. Its special function determines that each part needs to transmit complex and harsh movements and powers, and a stable and reliable lubrication system is the premise to ensure its reliable function.

[0003] Currently, in order to lubricate the bearings in the differential, a part of the gears in the differential is immersed in the oil. By the rotation of the gears, the oil can be splashed, and then the splashed oil is guided by the oil retaining ribs of the differential itself, so that the splashed oil can flow into the opening of the oil passage, and then the lubricating oil acts on the bearings to complete the lubrication of the bearings.

[0004] However, in order to have enough oil to lubricate the bearings, the oil level is usually in the middle of the gears. However, during the use of the vehicle, the oil will be lost. When the oil level is not in the middle of the gears, the gears can only drive a small amount of oil to splash, making it impossible to lubricate the bearings sufficiently. Therefore, the existing lubrication method for bearings cannot achieve normal lubrication of the bearings with low-level oil. Summary of the Utility Model

[0005] Based on this, the purpose of the utility model is to provide a lubricating device applied to a differential assembly, so as to solve the technical problem that the existing lubrication method for bearings in the background art cannot achieve normal lubrication of the bearings with low-level oil.

[0006] The utility model provides a lubricating device applied to a differential assembly. The differential assembly includes gears. The lubricating device includes a socket part having a first socket part and a second socket part. The first socket part is sleeved outside the gears, and the cross-sectional dimension of the first socket part is smaller than the cross-sectional dimension of the gears, so that a part of the cross-section of the gears extends beyond the edge of the first socket part.

[0007] Wherein, one side of the first socket part away from the gears is connected to the second socket part, and the dimension of the second socket part close to the first socket part extends from large to small towards the other end, so that a cavity is jointly formed between the second socket part and the gears, and the cavity is used to accommodate lubricating oil.

[0008] Further, the differential assembly further includes bearings and a housing having an oil inlet.

[0009] Wherein, the gear is rotatably connected to the housing, and the output end of the oil inlet is facing the bearing. When the gear rotates relative to the housing, the gear drives the lubricating oil in the cavity to be transmitted to the oil inlet, so that the lubricating oil lubricates the bearing.

[0010] Further, the gear includes a tooth surface portion and an end face portion;

[0011] Wherein, the cross-sectional dimension of the first socket portion is smaller than that of the tooth surface portion, so that a part of the cross-section of the tooth surface portion extends beyond the edge of the first socket portion;

[0012] The end face portion is disposed opposite to the second socket portion, so that the cavity is jointly formed between the end face portion and the second socket portion.

[0013] Further, the socket member is further provided with an opening portion, and the opening portion penetrates through the first socket portion and the second socket portion.

[0014] Further, the opening portion is disposed on a partial cross-section of the socket member close to the oil inlet.

[0015] Further, the first socket portion and the second socket portion are integrally formed.

[0016] Further, the differential assembly further includes an oil retaining rib disposed on the housing, and the oil retaining rib is used for guiding the lubricating oil.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] In the lubrication device applied to the differential assembly provided by the present utility model, it includes a socket member, and the first socket portion of the socket member is sleeved outside the gear. The cross-sectional dimension of the first socket portion is smaller than that of the gear, so that a part of the cross-section of the gear extends beyond the edge of the first socket portion. The dimension of the second socket portion close to the first socket portion extends from large to small towards the other end, so that the cavity is jointly formed between the second socket portion and the gear. The cavity is used for accommodating the lubricating oil. That is, by the rotation of the gear, the oil can lubricate the bearing, and there will be oil overflow during the lubrication process of the bearing. At this time, the overflowing oil can be stored through the cavity, so that the gear can also drive the oil in the cavity to splash. When the lubricating oil is at a low liquid level, the lubricating oil in the cavity can also ensure that there is enough lubricating oil to lubricate the bearing, thereby solving the technical problem that the existing lubrication method for the bearing cannot ensure normal lubrication of the bearing with the oil at a low liquid level. Description of the Drawings

[0019] Figure 1Stereogram of a lubrication device applied to a differential assembly according to an embodiment of the present utility model;

[0020] Figure 2 Front view of a lubrication device applied to a differential assembly according to an embodiment of the present utility model;

[0021] Figure 3 Rear view of a lubrication device applied to a differential assembly according to an embodiment of the present utility model;

[0022] Figure 4 Cross-sectional view of a lubrication device applied to a differential assembly according to an embodiment of the present utility model.

[0023] In the figure: 100, differential assembly; 110, gear; 111, tooth surface; 112, end face; 120, bearing; 130, housing; 131, oil inlet; 132, oil retaining rib; 200, socket part; 210, first socket part; 220, second socket part; 230, opening; 300, cavity. Detailed implementation manners

[0024] To facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present utility model are given in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present utility model more thorough and comprehensive.

[0025] It should be noted that when an element is referred to as being "fixedly arranged on" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the description of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0027] Please refer to Figures 1 to 4, shown is a lubrication device applied to a differential assembly in an embodiment of the present invention. The differential assembly 100 includes a gear 110. It should be noted that in the prior art, the differential is usually immersed in a lubricating oil liquid, and the liquid level surface of the lubricating oil liquid is at the middle of the gear 110. By the rotation of the gear 110, the lubricating oil liquid can splash, and the splashed oil liquid is used to lubricate the bearing 120 in the differential assembly 100. However, in the prior art, when the oil level of the lubricating oil liquid is at a relatively low level, the gear 110 cannot drive enough lubricating oil to lubricate the bearing 120.

[0028] Therefore, in this embodiment, the lubrication device includes a socket part 200 having a first socket part 210 and a second socket part 220. The first socket part 210 is sleeved outside the gear 110, and the cross-sectional dimension of the first socket part 210 is smaller than the cross-sectional dimension of the gear 110, so that a part of the cross-section of the gear 110 extends beyond the edge of the first socket part 210;

[0029] Wherein, one side of the first socket part 210 away from the gear 110 is connected to the second socket part 220, and the dimension of the second socket part 220 close to the first socket part 210 extends from large to small towards the other end, so that a cavity 300 is jointly formed between the second socket part 220 and the gear 110. The cavity 300 is used to accommodate the lubricating oil liquid.

[0030] Specifically, in this embodiment, the differential assembly 100 further includes a bearing 120 and a housing 130 having an oil inlet 131; wherein, the gear 110 is rotatably connected to the housing 130, and the output end of the oil inlet 131 faces the bearing 120, so that when the gear 110 rotates relative to the housing 130, the gear 110 drives the lubricating oil liquid in the cavity 300 to be transmitted to the oil inlet 131, so as to lubricate the bearing 120 with the lubricating oil liquid.

[0031] That is, when the differential assembly 100 is in an initial state, the differential assembly 100 will be in an operating environment with a relatively high oil level. By the rotation of the gear 110, the oil liquid can splash to the oil inlet 131, and the oil liquid is accurately output to the bearing 120 through the oil inlet 131, so as to lubricate the bearing 120. And there will be oil liquid overflowing during the lubrication process of the bearing 120. At this time, the overflowing oil liquid can be stored through the cavity 300

[0032] It should be noted that, since the cross-sectional dimension of the first sleeve portion 210 is smaller than the cross-sectional dimension of the gear 110, a portion of the cross-sectional dimension of the gear 110 exceeds the edge of the first sleeve portion 210. When the liquid level of the lubricating oil is in the middle of the gear 110, the portion of the cross-sectional dimension of the gear 110 that exceeds the edge of the first sleeve portion 210 can be used to drive the oil outside the cavity 300 to splash. When the liquid level of the lubricating oil is lower than the middle of the gear 110, since there is lubricating oil in the cavity 300, and the oil after lubricating the bearing 120 will return to the cavity 300, when the lubricating oil is at a low liquid level, the lubricating oil in the cavity 300 can also ensure that there is enough lubricating oil to lubricate the bearing 120, thereby solving the technical problem that the existing lubrication method for the bearing 120 cannot achieve the low liquid level oil to ensure the normal lubrication of the bearing 120.

[0033] Specifically, the gear 110 includes a tooth face portion 111 and an end face portion 112, wherein the cross-sectional dimension of the first sleeve portion 210 is smaller than the cross-sectional dimension of the tooth face portion 111, so that a portion of the cross-sectional dimension of the tooth face portion 111 exceeds the edge of the first sleeve portion 210, and the end face portion 112 is arranged opposite to the second sleeve portion 220, so that a cavity 300 is formed between the end face portion 112 and the second sleeve portion 220.

[0034] In addition, in order to facilitate the rapid transmission of splashing oil to the oil inlet 131, an opening portion 230 is also provided on the socket 200. The opening portion 230 passes through the first socket portion 210 and the second socket portion 220, and the opening portion 230 is provided in a partial cross-section of the socket 200 close to the oil inlet 131. By utilizing the opening portion 230, the lubricating oil driven by the cavity 300 can quickly escape from the accommodation range of the first socket portion 210.

[0035] In some preferred embodiments, the first sleeve portion 210 and the second sleeve portion 220 are integrally formed, and the integral forming is used to ensure the overall strength of the sleeve 200.

[0036] In some other preferred embodiments, the differential assembly 100 further includes an oil deflector 132 disposed on the housing 130 , and the oil deflector 132 is used to guide the lubricating oil.

[0037] In summary, a lubrication device applied to a differential assembly in an embodiment of the present invention has at least the following beneficial effects compared with the prior art method of fixing the wiring harness and the light guide:

[0038] In the lubrication device for a differential assembly provided by the present utility model, it includes a socket part 200. The first socket part 210 of the socket part 200 is sleeved outside the gear 110. The cross-sectional dimension of the first socket part 210 is smaller than that of the gear 110, such that a part of the cross-section of the gear 110 extends beyond the edge of the first socket part 210. The dimension of the second socket part 220 close to the first socket part 210 extends from large to small towards the other end, such that a cavity 300 is jointly formed between the second socket part 220 and the gear 110. The cavity 300 is used to accommodate lubricating oil. That is, by the rotation of the gear 110, the oil can lubricate the bearing 120, and during the lubrication process, oil will overflow from the bearing 120. At this time, the overflowing oil can be stored through the cavity 300, and the gear 110 can also drive the oil in the cavity 300 to splash. When the lubricating oil is at a low liquid level, the lubricating oil in the cavity 300 can also ensure that there is sufficient lubricating oil to lubricate the bearing 120, thereby solving the technical problem that the existing lubrication method for the bearing 120 cannot ensure normal lubrication of the bearing 120 with the oil at a low liquid level.

[0039] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0040] The above embodiments only represent several implementation manners of the present utility model, and the description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the patent of the present utility model shall be subject to the appended claims.

Claims

1. A lubrication device applied to a differential assembly, the differential assembly including gears, characterized in that, The lubrication device includes a socket member having a first socket portion and a second socket portion. The first socket portion is sleeved outside the gear, and the cross-sectional dimension of the first socket portion is smaller than that of the gear, such that a part of the cross-section of the gear extends beyond the edge of the first socket portion. Wherein, one side of the first socket portion away from the gear is connected to the second socket portion, and the dimension of the second socket portion near the first socket portion extends from large to small towards the other end, such that a cavity is jointly formed between the second socket portion and the gear, and the cavity is used for accommodating lubricating oil.

2. The lubrication device applied to the differential assembly according to claim 1, characterized in that, The differential assembly further includes a bearing and a housing having an oil inlet. Wherein, the gear is rotatably connected to the housing, and the output end of the oil inlet faces the bearing, such that when the gear rotates relative to the housing, the gear drives the lubricating oil in the cavity to be transmitted to the oil inlet, so as to lubricate the bearing with the lubricating oil.

3. The lubricating device applied to the differential assembly according to claim 1, characterized in that, The gear includes a tooth surface portion and an end surface portion. Wherein, the cross-sectional dimension of the first socket portion is smaller than that of the tooth surface portion, such that a part of the cross-section of the tooth surface portion extends beyond the edge of the first socket portion. The end surface portion is disposed opposite to the second socket portion, such that the cavity is jointly formed between the end surface portion and the second socket portion.

4. The lubricating device applied to the differential assembly according to claim 2, wherein An opening portion is further provided on the socket member, and the opening portion penetrates through the first socket portion and the second socket portion.

5. The lubricating device applied to the differential assembly according to claim 4, characterized in that, The opening portion is provided on a part of the cross-section of the socket member near the oil inlet.

6. The lubricating device applied to the differential assembly according to claim 1, characterized in that, The first socket portion and the second socket portion are integrally formed.

7. The lubricating device applied to the differential assembly according to claim 2, characterized in that, The differential assembly further includes an oil retaining rib provided on the housing, and the oil retaining rib is used for guiding the lubricating oil.

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