CN217381562U - Reduction gear assembly and vehicle - Google Patents

Abstract

The utility model discloses a reduction gear assembly and vehicle. The reduction gear assembly includes: the inner wall of the box body is provided with an oil guide rib position; the driving assembly comprises a first bearing and a first gear which are arranged in the box body, and the first bearing is connected with the first gear; lead oily structure, establish in the box, lead oily structure and include that first lead oily piece, first lead oily piece and be equipped with first oil groove of leading, first oil groove of leading has first oil-out, and first oil groove of leading is located leads oily muscle position below, and first oil-out is towards first bearing. In the speed reducer assembly, the first oil guide part is arranged, so that lubricating oil can be guided to the first bearing, and the lubricating oil can fully reach the bearing.

Description

Reduction gear assembly and vehicle

Technical Field

The utility model relates to the technical field of vehicles, in particular to reduction gear assembly and vehicle.

Background

In the related art, a speed reducer assembly used for a vehicle includes a bearing, and lubrication of the bearing is a key of the speed reducer assembly, particularly an input bearing, and can reach 10000rpm at most due to high rotation speed. Therefore, the reducer assembly has a lubrication system to lubricate the bearings. The lubricating system achieves lubrication and cooling of the bearings of the speed reducer assembly by the fact that splashed oil stirred by rotation of the inner gear of the speed reducer assembly reaches the rolling bodies at the bottom of the input bearing. However, it is still difficult to ensure that the lubrication oil sufficiently reaches the reduction gear assembly bearings at the time of splash lubrication.

SUMMERY OF THE UTILITY MODEL

The utility model discloses embodiment provides a reduction gear assembly and vehicle.

The utility model discloses embodiment's a reduction gear assembly, include:

the oil guide rib position is arranged on the inner wall of the box body;

the driving assembly comprises a first bearing and a first gear which are arranged in the box body, and the first bearing is connected with the first gear;

lead oily structure, establish in the box, lead oily structure and include that the first oil piece of leading, the first oil piece of leading is equipped with the first oil groove of leading, the first oil groove of leading has first oil-out, the first oil groove of leading is located lead oil muscle position below, first oil-out orientation first bearing.

In the speed reducer assembly, the first oil guide part is arranged, so that lubricating oil can be guided to the first bearing, and the lubricating oil can fully reach the bearing.

In certain embodiments, the first bearing comprises a main shaft bearing and a secondary shaft bearing, the first oil outlet comprises a main shaft bearing oil outlet and a secondary shaft bearing oil outlet, the main shaft bearing oil outlet is towards the main shaft bearing, and the secondary shaft bearing oil outlet is towards the secondary shaft bearing.

In some embodiments, an oil blocking rib is disposed in the first oil guiding groove, the main shaft bearing oil outlet includes a front box main shaft bearing oil outlet and a rear box main shaft bearing oil outlet, the rear box main shaft bearing oil outlet and the auxiliary shaft bearing oil outlet are located on one side of the oil blocking rib, and the front box main shaft bearing oil outlet is located on the other side of the oil blocking rib.

In certain embodiments, the first gear comprises a main shaft gear and a counter shaft gear that intermesh, the first oil outlet comprises a gear oil outlet that faces the main shaft gear and the counter shaft gear.

In some embodiments, the speed reducer assembly further comprises a differential assembly, the differential assembly comprising a second bearing and a second gear disposed within the housing, the second bearing being coupled to the second gear;

lead oily structure still includes the second and leads oily spare, the second leads oily spare and is equipped with the second and leads the oil groove, the second leads the oil groove to have the second oil-out, the second leads the oil groove to be located second gear top below, the second oil-out orientation the second bearing.

In some embodiments, a clamping groove is formed in the box body, the second oil guiding piece includes a clamping portion, and the second oil guiding piece is fixed on the box body by clamping the clamping portion through the clamping groove.

In some embodiments, the box body comprises a front box body and a rear box body which are connected with each other, a first limit groove is arranged in the front box body, a part of the first oil guide piece is positioned in the first limit groove, a second limit groove is arranged in the rear box body, the other part of the first oil guide piece is positioned in the second limit groove, and the front box body and the rear box body clamp the first oil guide piece.

In some embodiments, a first mating surface is disposed on a top of the first oil guiding member, and the first mating surface abuts against a bottom surface of the oil guiding rib.

In some embodiments, a third limiting groove is further disposed in the front box body, and a protruding portion is disposed on the first oil guiding member and is positioned in the third limiting groove.

In some embodiments, the protrusion includes a second mating surface and a third mating surface that are opposite to each other, and the second mating surface and the third mating surface respectively abut against two groove walls opposite to the third limiting groove.

In some embodiments, a fourth mating surface and a fifth mating surface are respectively disposed at two ends of the first oil guiding member, the fourth mating surface abuts against a groove wall of the first limiting groove, and the fifth mating surface abuts against a groove wall of the second limiting groove.

The utility model discloses the embodiment's a vehicle, including the reduction gear assembly of any above-mentioned embodiment.

In the vehicle, the first oil guide part is arranged on the speed reducer assembly, so that the lubricating oil can be guided to the first bearing, and the lubricating oil can sufficiently reach the bearing.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of a reducer assembly according to an embodiment of the present invention;

fig. 2 is a schematic view of an internal structure of a speed reducer assembly according to an embodiment of the present invention;

FIG. 3 is a schematic view of another internal structure of a retarder assembly according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a front case according to an embodiment of the present invention;

FIG. 5 is an enlarged schematic view of portion A of FIG. 4;

fig. 6 is a schematic structural view of a rear box body according to an embodiment of the present invention;

fig. 7 is a plan view of a first oil guide according to an embodiment of the present invention;

fig. 8 is a bottom view of the first oil guide according to the embodiment of the present invention;

fig. 9 is a front view of a first oil guide of an embodiment of the present invention;

fig. 10 is a rear view of a first oil guide of an embodiment of the present invention;

fig. 11 is a left side view of a first oil guide of the embodiment of the present invention;

fig. 12 is a right side view of a first oil guide of the embodiment of the present invention;

fig. 13 is a plan view of a second oil guide according to the embodiment of the present invention;

fig. 14 is a bottom view of the second oil guide according to the embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected. Either mechanically or electrically. Either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The disclosure herein provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of the specific examples are described herein. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

Referring to fig. 1 to 3, 13 and 14, a reducer assembly 100 according to an embodiment of the present invention includes a casing 12, a driving assembly 14 and an oil guiding structure.

The inner wall of the box body 12 is provided with an oil guiding rib position 18. The driving assembly 14 includes a first bearing 20 and a first gear 22 disposed in the housing 12, wherein the first bearing 20 is connected to the first gear 22. Lead oily structure and establish in box 12, lead oily structure and include that first lead oily 28, first lead oily 28 and be equipped with first oil groove 32 of leading, first oil groove 32 of leading has first oil-out 34, and first oil groove 32 of leading is located leads oily muscle position 18 below, and first oil-out 34 is towards first bearing 20.

In the above-described speed reducer assembly 100, by providing the first oil guide 28, the lubricating oil can be guided to the first bearing 20, ensuring that the lubricating oil can sufficiently reach the bearing.

Specifically, the lubrication system of the speed reducer assembly 100 of the embodiment of the present invention mainly adopts the forms of oil immersion lubrication and splash lubrication, wherein the oil immersion lubrication is mainly used for the lubrication of each gear structure, and the splash lubrication is mainly used for the lubrication of each bearing and oil seal structure.

The present invention relates to a speed reducer assembly 100, which mainly comprises a driving assembly 14, an oil seal, a bearing ring and a differential assembly 16. In the embodiment shown in fig. 2, drive assembly 14 basically includes a main shaft 40 and a main shaft gear (not shown), a countershaft 42, a countershaft gear 44 and various bearings. Various bearings and gears inevitably generate a large amount of heat in the rotating process, and before the rotating pairs, if a lubricating oil film is not available, dry friction is generated between the rotating pairs, so that the rotating pairs are in a direct wear state, the failure risk is greatly increased, lubricating oil is required to be used, the lubricating oil film is generated between the various bearings and the gear pairs of the reducer assembly 100, and the direct contact between the contact pairs is avoided.

Referring to fig. 1, the tank 12 is provided with an oil inlet 46, an oil outlet 48 and a ventilation opening 50. The housing 12 may include a front housing 52 and a rear housing 54 that are connected to each other, and in the embodiment shown in fig. 2 and 3, the oil guide rib locations 18 are formed by abutting first rib locations 56 on an inner wall of the front housing 52 and second rib locations 58 on an inner wall of the rear housing 54.

In some embodiments, the differential assembly 16 includes a second bearing 24 and a second gear 26 disposed within the case 12, the second bearing 24 being coupled to the second gear 26;

lead oily structure and still include second and lead oily 30, and second leads oily 30 to be equipped with second and leads oil groove 36, and second leads oil groove 36 to have second oil-out 38, and second leads oil groove 36 to be located second gear 26 top below, and second oil-out 38 is towards second bearing 24. Thus, by providing the second oil guide 30 so that the lubricating oil can be guided to the second bearing 24, it is ensured that the lubricating oil can sufficiently reach the bearing.

The second bearing 24 includes two second bearings 24, one second bearing 24 is mounted on the front case 52, the other second bearing 24 is mounted on the rear case 54, and the second gear 26 is located between the two second bearings 24, so that the stability of the rotation of the second gear 26 can be increased.

Referring to fig. 3, when the front box 52 and the rear box 54 are seen, the main shaft 40 and the differential gear (the second gear 26) rotate clockwise, the main shaft gear stirs up the lubricant in the box 12 and flows onto the counter shaft gear 44, the counter shaft gear 44 throws the lubricant onto the oil guiding rib 18, the lubricant falls down depending on the wall surface of the oil guiding rib 18 due to gravity and certain viscosity, and then the lubricant flows into the flow channel of the first oil guiding groove 32, and the lubricant is delivered to the first bearing 20, such as the counter shaft bearing 66 and the main shaft bearing 64, through the first oil outlet 34 of the first oil guiding groove 32, so as to satisfy the continuous lubrication of the bearings and avoid the failure of the bearings. It is understood that in other embodiments, the entire oil guide rib position 18 may be formed on the inner wall of the front case 52 or the inner wall of the rear case 54.

The lubricating oil stirred up by the second gear 26 (differential gear) can be sent to the highest point of the second gear 26 by the second gear 26 due to the oil guiding function of the oil pan 60 and the box body 12, the lubricating oil reaching the highest point contains certain viscosity due to gravity and self, the lubricating oil can flow into the flow channel of the second oil guiding groove 36 along the gear wall, and the second oil guiding groove 36 transmits the lubricating oil to the second bearing 24 (differential shaft sleeve).

When the lubricating oil returns to the bottom of the reducer assembly 100 due to the action of gravity, the magnet 62 mounted at the bottom of the case 12 will adsorb the debris so as to prevent the debris from returning to the space between the rotating pairs again, causing abrasion between the rotating pairs, or even causing failure of the rotating pairs.

The utility model discloses in the embodiment, the orientation of leading the hydraulic fluid port can be so that lubricating oil from leading the hydraulic fluid port when flowing, can flow to corresponding lubricated object, like bearing and/or gear etc.. The first oil guiding member 28 and the second oil guiding member 30 may be made of plastic or suitable material, the first oil guiding member 28 may be an integrally formed member or a separate connecting member, and the second oil guiding member 30 may be an integrally formed member or a separate connecting member, which is not particularly limited herein.

In certain embodiments, first bearing 20 comprises a main shaft bearing 64 and a secondary shaft bearing 66, see fig. 7, first oil outlet 34 comprises a main shaft bearing oil outlet 68 and a secondary shaft bearing oil outlet 70, main shaft bearing oil outlet 68 being toward main shaft bearing 64, secondary shaft bearing oil outlet 70 being toward secondary shaft bearing 66. In this manner, lubrication of the secondary shaft bearing 66 and the primary shaft bearing 64 can be achieved.

Specifically, referring to fig. 7, the first oil guiding member 28 is substantially long, the main shaft bearing oil outlet 68 faces the main shaft bearing 64, so that the lubricating oil flowing out from the main shaft bearing oil outlet 68 can be delivered to the main shaft bearing 64, and the auxiliary shaft bearing oil outlet 70 faces the auxiliary shaft bearing 66, so that the lubricating oil flowing out from the auxiliary shaft bearing oil outlet 70 can be delivered to the auxiliary shaft bearing 66, so that the corresponding bearing can be sufficiently lubricated and cooled.

In some embodiments, referring to fig. 7, an oil blocking rib 72 is disposed in the first oil guiding groove 32, the main shaft bearing oil outlet 68 includes a front box main shaft bearing oil outlet 74 and a rear box main shaft bearing oil outlet 76, the rear box main shaft bearing oil outlet 76 and the auxiliary shaft bearing oil outlet 70 are disposed on one side of the oil blocking rib 72, and the front box main shaft bearing oil outlet 74 is disposed on the other side of the oil blocking rib 72. Thus, the oil blocking ribs 72 can divide the lubricating oil to two sides of the oil blocking ribs 72, so that the lubricating oil can uniformly flow to oil outlets on two sides.

Specifically, in the illustrated embodiment, the main shaft bearing 64 includes two, front case main shaft bearings 78 and rear case main shaft bearings 80. The front box main shaft bearing 78 is mounted on the front box body 52, the rear box main shaft bearing 80 is mounted on the rear box body 54, and the main shaft gear is located between the front box main shaft bearing 78 and the rear box main shaft bearing 80, so that the rotation stability of the main shaft gear can be improved.

The countershaft bearings 66 include two, front case countershaft bearings 82 and rear case countershaft bearings 84. Front case counter shaft bearing 82 is mounted on front case 52, rear case counter shaft bearing 84 is mounted on rear case 54, and counter gear 44 is located between front case counter shaft bearing 82 and rear case counter shaft bearing 84, so that stability of rotation of counter gear 44 can be increased.

The front box main shaft bearing oil outlet 74 and the rear box main shaft bearing oil outlet 76 are respectively located at two ends of the first oil guide 28 along the length direction, and the auxiliary shaft bearing oil outlet 70 can be used as a rear box auxiliary shaft bearing oil outlet. The countershaft bearing oil outlet 70 is adjacent the rear box main shaft bearing oil outlet 76.

The front box main shaft bearing oil outlet 74 faces the front box main shaft bearing 78 so that the lubricating oil flowing out of the front box main shaft bearing oil outlet 74 can be conveyed to the front box main shaft bearing 78, and the rear box main shaft bearing oil outlet 76 faces the rear box main shaft bearing 80 so that the lubricating oil flowing out of the rear box main shaft bearing oil outlet 76 can be conveyed to the rear box main shaft bearing 80. The countershaft bearing oil outlet 70 is directed toward the rear case countershaft bearing 84 so that the lubricating oil flowing out of the countershaft bearing oil outlet 70 can be delivered to the rear case countershaft bearing 84 so that the corresponding bearing can be sufficiently lubricated and cooled.

It will be appreciated that in other embodiments, the countershaft bearing oil outlet 70 may also include a rear case countershaft bearing oil outlet facing the rear case countershaft bearing 84 and a front case countershaft bearing 82 oil outlet facing the front case countershaft bearing 82.

In certain embodiments, first gear 22 includes intermeshing main and countershaft gears 44, fig. 7 and 9, and first oil outlet 34 includes a gear oil outlet 86, with gear oil outlet 86 facing main and countershaft gears 44. In this manner, the gears may be lubricated to ensure that the gears of the reducer assembly 100 are lubricated and cooled.

Specifically, first bearing 20 includes a main shaft bearing 64 and a counter shaft bearing 66, first gear 22 includes a main shaft gear and a counter shaft gear 44, the main shaft gear is connected with main shaft bearing 64, counter shaft gear 44 is connected with counter shaft bearing 66, and main shaft gear and counter shaft gear 44 are meshed with each other. When the main shaft gear rotates, the auxiliary shaft gear 44 can be driven to rotate.

In the illustrated embodiment, the main shaft gear is located below the counter gear 44, and the gear oil outlet 86 is directed toward the main shaft gear and the counter gear 44, so that the lubricating oil flowing out of the gear oil outlet 86 can be delivered to the main shaft gear and the counter gear 44, and both gears can be sufficiently lubricated and cooled.

In the embodiment shown in fig. 7, the first oil outlet 34 includes a front box main shaft bearing oil outlet 74, a rear box main shaft bearing oil outlet 76, a rear box auxiliary shaft bearing oil outlet and a gear oil outlet 86, the front box main shaft bearing oil outlet 74 and the rear box main shaft bearing oil outlet 76 are disposed at two ends of the first oil guide 28 along the length direction, and the rear box auxiliary shaft bearing oil outlet and the gear oil outlet 86 are disposed at the same side of the first oil guide 28 perpendicular to the length direction. The front box main shaft bearing oil outlet 74 is located on one side of the oil blocking rib 72, and the rear box main shaft bearing oil outlet 76, the rear box auxiliary shaft bearing oil outlet and the gear oil outlet 86 are located on the other side of the oil blocking rib 72.

In some embodiments, referring to fig. 4, 5, 13 and 14, a locking groove 88 is formed in the housing 12, the second oil guiding member 30 includes a locking portion 90, and the second oil guiding member 30 is fixed to the housing 12 by the locking groove 88 locking the locking portion 90. Therefore, the installation cost can be reduced, and the operation is simple and quick.

Specifically, in the embodiment shown in fig. 13 and 14, the engaging portion 90 includes two engaging portions 90, two engaging portions 90 are located on opposite sides of the second oil guide 30, and each engaging portion 90 has an upper engaging surface 92 and a lower engaging surface 94.

The two slots 88 are opposite, the slots 88 are substantially U-shaped, and each slot 88 includes two opposite slot walls. When the engaging portion 90 is engaged with the engaging groove 88, the upper engaging surface 92 and the lower engaging surface 94 abut against the two groove walls of the engaging groove 88, respectively. The upper mating surface 92 and the lower mating surface 94 may be flat surfaces with a large contact area and a good clamping effect.

Can make the spacing block portion 90 of draw-in groove 88 chucking through interference fit's mode, and then realize that the second leads the installation of oil spare 30, the utility model discloses the second leads the installation of oil spare 30 can not adopt the bolt fastening, can reduce installation cost, and easy operation is swift.

Through the design of the position of the clamping groove 88, the second oil guide 30 can guide oil to the second bearing 24 at an accurate position.

In the embodiment shown in fig. 4 and 5, the catch 88 is provided on the inner wall of the front case 52. It is understood that in other embodiments, the locking groove 88 may be provided on the inner wall of the rear housing 54 or on the inner wall of the front housing 52 and the inner wall of the rear housing 54, depending on the position of the second bearing 24, and is not particularly limited herein.

In some embodiments, referring to fig. 4 and 6, the housing 12 includes a front housing 52 and a rear housing 54 connected to each other, a first limit groove 96 is formed in the front housing 52, a portion of the first oil guide 28 is positioned in the first limit groove 96, a second limit groove 98 is formed in the rear housing 54, another portion of the first oil guide 28 is positioned in the second limit groove 98, and the front housing 52 and the rear housing 54 clamp the first oil guide 28. Thus, the first oil guide 28 can be mounted and fixed in a limited manner.

Specifically, the first oil guide 28 is substantially elongated. Along the length direction, one end of the first oil guiding member 28 can be limited in the first limiting groove 96, and the other end can be limited in the second limiting groove 98.

During assembly, one end of the first oil guiding member 28 may be first limited in the first limiting groove 96 of the front box 52 for preliminary limiting, and then the rear box 54 and the front box 52 are combined to make the other end of the first oil guiding member 28 limited in the second limiting groove 98. After the rear box 54 and the front box 52 are assembled and pre-tightened, the first oil guide member 28 is completely limited, so that the requirement of structural fixation can be met, and the lubrication cannot be affected. In addition, the first oil guide member 28 is not fixed by bolts, so that the installation process and material cost are reduced, and the operation is simple and rapid.

In some embodiments, the top of the first oil guiding member 28 is provided with a first mating surface 99, and the first mating surface 99 abuts against the bottom surface of the oil guiding rib 18. In this manner, pre-assembly of the first oil guide 28 is facilitated.

Specifically, referring to fig. 7, 9 and 10, the top of the first oil guiding member 28 has a protruding member 97, the top surface of the protruding member 97 is a first mating surface 99, the first mating surface 99 is a plane, the oil guiding rib 18 is formed by butting the first rib 56 on the inner wall of the front case 52 and the second rib 58 on the inner wall of the rear case 54, the bottom surface of the first rib 56 forms the inner wall of the first limiting groove 96, and the first mating surface 99 abuts against the bottom surface of the first rib 56. By providing the first mating surface 99, when the first oil guiding member 28 is preassembled, the first oil guiding member 28 can be installed in the first limiting groove 96 by sliding the first mating surface 99 along the bottom surface of the first rib 56.

In some embodiments, referring to fig. 4 and fig. 8 to fig. 12, a third limiting groove 95 is further disposed in the front case 52, a protrusion 93 is disposed on the first oil guiding member 28, and the protrusion 93 is located in the third limiting groove 95. In this way, the front case 52 can further limit the first oil guide 28.

Specifically, the projection 93 is provided at the bottom of the first oil guide 28. During the assembly, first oil guide 28 is spacing in first spacing groove 96 in advance, and bulge 93 is predetermined position in third spacing groove 95, and preceding box 52 and back box 54 close the case, and it is spacing to carry out a plurality of azimuths to first oil guide 28, and it is spacing to first oil guide 28 to further realize preceding box 52, avoids the aversion of first oil guide 28.

In some embodiments, the protrusion 93 includes a second mating surface 91 and a third mating surface 89 that are opposite to each other, and the second mating surface 91 and the third mating surface 89 abut against two groove walls of the third limiting groove 95. Thus, the third limiting groove 95 is used for limiting the protruding portion 93 through the matching of the matching surface and the groove wall, and the front box 52 is further used for limiting the first oil guide element 28.

Specifically, the second mating surface 91 and the third mating surface 89 may be planar, and the planar contact area is large, so that the limiting effect is good.

In some embodiments, the first oil guiding member 28 has a fourth mating surface 87 and a fifth mating surface 85 at two ends thereof, the fourth mating surface 87 abuts against a groove wall of the first position-limiting groove 96, and the fifth mating surface 85 abuts against a groove wall of the second position-limiting groove 98. Thus, the first oil guide member 28 is limited by the first limiting groove 96 and the second limiting groove 98 through the matching of the matching surface and the groove wall.

Specifically, the fourth mating surface 87 may be formed by two planes connected in an inclined manner at a certain angle, and the fifth mating surface 85 may be a plane, so that the contact area of the planes is large, and the limiting effect is good.

The matching surface of the first oil guiding member 28 of the above embodiment can be completely designed by the structure of the case body 12, and the structure of the case body 12 is not increased, so that the manufacturing cost can be reduced.

With reference to fig. 2 and 7, in the embodiment of the present invention, the first oil guiding groove 32 can simultaneously realize the oil guiding of three speed reducer bearings and a pair of gear pairs, the oil guiding rib position 18 on the box 12 blocks the stirred lubricating oil, the lubricating oil reaches the first oil guiding groove 32, and then the flow channel through the first oil guiding groove 32 respectively leads to the rear box main shaft bearing oil outlet 76, the rear box countershaft bearing oil outlet, the front box main shaft bearing oil outlet 74 and the gear oil outlet 86 (the gear oil outlet 86 can simultaneously satisfy the lubrication and cooling of the main shaft gear and the countershaft gear 44), and the lubrication of three bearings and a pair of gear pairs can be simultaneously realized.

The utility model discloses a vehicle of embodiment, including the reduction gear assembly 100 of any preceding embodiment.

In the vehicle described above, by providing the first oil guide 28 in the speed reducer assembly 100 so that the lubricating oil can be guided to the first bearing 20, it is ensured that the lubricating oil can sufficiently reach the bearing.

Specifically, vehicles include, but are not limited to, electric vehicles, hybrid vehicles, extended range electric vehicles, fuel vehicles, and the like.

The above explanation of the embodiment and the advantageous effects of the retarder unit 100 is also applicable to the vehicle of the present embodiment, and is not detailed here to avoid redundancy.

In the description of the present specification, reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "example", "specific example", or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (12)

1. A retarder assembly, comprising:

the oil guide rib position is arranged on the inner wall of the box body;

the driving assembly comprises a first bearing and a first gear which are arranged in the box body, and the first bearing is connected with the first gear;

lead oily structure, establish in the box, lead oily structure and include that the first oil piece of leading, the first oil piece of leading is equipped with the first oil groove of leading, the first oil groove of leading has a first oil-out, the first oil groove of leading is located lead oily muscle position below, first oil-out orientation first bearing.

2. The retarder assembly of claim 1, wherein the first bearing includes a main shaft bearing and a secondary shaft bearing, the first oil outlet includes a main shaft bearing oil outlet and a secondary shaft bearing oil outlet, the main shaft bearing oil outlet is toward the main shaft bearing, and the secondary shaft bearing oil outlet is toward the secondary shaft bearing.

3. The reducer assembly according to claim 2, wherein an oil blocking rib is disposed in the first oil guiding groove, the main shaft bearing oil outlet includes a front box main shaft bearing oil outlet and a rear box main shaft bearing oil outlet, the rear box main shaft bearing oil outlet and the auxiliary shaft bearing oil outlet are disposed on one side of the oil blocking rib, and the front box main shaft bearing oil outlet is disposed on the other side of the oil blocking rib.

4. The retarder assembly of claim 1, wherein the first gear comprises intermeshing main and countershaft gears, the first oil outlet comprising a gear oil outlet directed toward the main and countershaft gears.

5. The retarder assembly of claim 1, further comprising a differential assembly, the differential assembly including a second bearing and a second gear disposed within the case, the second bearing being coupled to the second gear;

lead oily structure still includes the second and leads oily spare, the second leads oily spare and is equipped with the second and leads the oil groove, the second leads the oil groove to have the second oil-out, the second leads the oil groove to be located second gear top below, the second oil-out orientation the second bearing.

6. The reducer assembly according to claim 5, wherein a slot is formed in the housing, the second oil guiding member includes a locking portion, and the second oil guiding member is fixed to the housing by the locking portion being locked by the slot.

7. The reducer assembly according to claim 1, wherein the casing includes a front casing and a rear casing that are connected to each other, a first limit groove is provided in the front casing, a portion of the first oil guide is positioned in the first limit groove, a second limit groove is provided in the rear casing, another portion of the first oil guide is positioned in the second limit groove, and the front casing and the rear casing clamp the first oil guide.

8. The reducer assembly according to claim 7, wherein the top of the first oil guiding member is provided with a first mating surface, and the first mating surface abuts against the bottom surface of the oil guiding rib.

9. The reducer assembly according to claim 7, wherein a third limiting groove is further formed in the front case, and a protrusion is formed on the first oil guiding member and positioned in the third limiting groove.

10. The speed reducer assembly according to claim 9, wherein the protrusion includes a second mating surface and a third mating surface opposite to each other, and the second mating surface and the third mating surface abut against two opposite groove walls of the third limiting groove, respectively.

11. The reducer assembly according to claim 7, wherein a fourth mating surface and a fifth mating surface are respectively disposed at two ends of the first oil guiding member, the fourth mating surface abuts against a groove wall of the first limiting groove, and the fifth mating surface abuts against a groove wall of the second limiting groove.

12. A vehicle comprising a retarder assembly according to any of claims 1-11.

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