CN219176914U - Speed reducer assembly and vehicle with same - Google Patents

Abstract

The utility model discloses a speed reducer assembly and a vehicle with the same, wherein the speed reducer assembly comprises: the speed reducer comprises a speed reducer box body, wherein an installation cavity is formed in the speed reducer box body; the oil collecting piece is arranged in the mounting cavity and used for supplying oil to the to-be-lubricated component in the mounting cavity; the first guide piece is arranged in the mounting cavity and is suitable for guiding splashed lubricating oil to the oil collecting piece when the vehicle advances; the second oil guide piece is arranged in the mounting cavity and is suitable for guiding splashed lubricating oil to the oil collecting piece when the vehicle is reversed. According to the speed reducer assembly, the first oil guide piece and the second oil guide piece are arranged, the first oil guide piece can have good flow guiding effect on lubricating oil when a vehicle advances, and the second oil guide piece can have good flow guiding effect on the lubricating oil when the vehicle reverses, so that the lubricating oil always has stable and good lubricating effect on parts to be lubricated when the vehicle reverses under different working conditions.

Description

Speed reducer assembly and vehicle with same

Technical Field

The utility model relates to the technical field of vehicles, in particular to a speed reducer assembly and a vehicle with the same.

Background

Speed reducers are commonly used to convert electric motors, internal combustion engines, or other high speed operating power to lower speed, higher torque power, which acts to match rotational speed and transfer torque between a prime mover and a work machine or implement. The speed reducer is usually provided with a plurality of transmission gears, and the speed reducer needs to lubricate gear shaft bearings of the plurality of gears in time to ensure the normal operation of the gear shaft during working. The bearing lubrication of the speed reducer adopts a splash lubrication mode, oil is splashed through gear rotation, the splashed oil is utilized to lubricate the bearing, and an oil guide structure is generally arranged on a speed reducer box body to play a certain role in guiding the splashed oil, so that the oil can well flow to the bearing position needing lubrication. In the related art, the oil guiding effect of the oil guiding structure is single, and the oil guiding structure cannot achieve good oil guiding effect under certain working conditions, so that the lubrication effect of splash lubrication is unstable.

Disclosure of Invention

The present utility model has been made based on the findings of the inventors of the present application regarding the following facts and problems: the conventional oil guide ribs are generally arranged to intercept and guide oil in a unidirectional mode through a groove-shaped structure, when a vehicle normally runs forwards, the normal oil guide function can be achieved through the oil guide ribs, when the vehicle runs backwards, the direction of splashed oil is correspondingly changed due to the fact that the rotation directions of the gears in the reduction gearbox are opposite, the oil guide ribs cannot achieve a good oil guide effect, the lubricating effect at the bearing is reduced, and therefore the lubrication of the bearing of the speed reducer becomes unstable.

The present utility model aims to solve at least one of the technical problems existing in the prior art. The utility model is based on the object of providing a gear unit for a gear unit that can always achieve good splash lubrication at different operating conditions.

The utility model further provides a vehicle with the speed reducer assembly.

A decelerator assembly according to a first aspect of the present utility model includes: the speed reducer comprises a speed reducer box body, wherein an installation cavity is formed in the speed reducer box body; the oil collecting piece is arranged in the mounting cavity and used for supplying oil to the parts to be lubricated in the mounting cavity; the first oil guide piece is arranged in the mounting cavity and is suitable for guiding splashed lubricating oil to the oil collecting piece when the vehicle advances; the second oil guide piece is arranged in the mounting cavity and is suitable for guiding splashed lubricating oil to the oil collecting piece when the vehicle is reversed.

According to the speed reducer assembly, the first oil guide piece and the second oil guide piece are arranged, the first oil guide piece can have good flow guiding effect on lubricating oil when a vehicle advances, and the second oil guide piece can have good flow guiding effect on the lubricating oil when the vehicle reverses, so that the lubricating oil always has stable and good lubricating effect on parts to be lubricated when the vehicle reverses under different working conditions.

In addition, the speed reducer assembly according to the utility model may also have the following additional technical features:

in some embodiments of the utility model, the speed reducer assembly further comprises a differential gear and a countershaft gear disposed within the mounting cavity, the first oil guide being adapted to guide lubricant splashed by the differential gear to the oil catcher as the vehicle advances; the second oil guide is adapted to guide the lubricating oil splashed by the counter gear to the oil collecting member when the vehicle is reversed.

In one embodiment of the present utility model, the first oil guide and the second oil guide are both provided between the differential gear and the main shaft gear and on an upper side of the sub shaft gear.

In one embodiment of the present utility model, the first oil guide is located at one side of the differential gear in the axial direction to receive lubricating oil thrown out of the differential gear, an upper side surface of the first oil guide is formed as a first oil guide surface, and at least a portion of the first oil guide extends obliquely downward to the oil collecting member in a direction from the differential gear toward the spindle gear.

In one embodiment of the present utility model, the second oil guide is located at an upper side of the counter gear to receive the lubricating oil thrown out of the counter gear, and a lower side surface of the second oil guide is formed as a second oil guide surface, at least a portion of which extends obliquely upward to the oil collecting member in a direction from the differential gear toward the main gear.

In some examples of the utility model, an end of the second oil guiding surface facing the counter gear extends in a tangential direction of the lubricant splashed by the counter gear.

In some embodiments of the utility model, the first oil guide and the second oil guide are integrally formed.

In one embodiment of the utility model, the first oil guide and the second oil guide are integrally formed with the reducer casing.

In some embodiments of the present utility model, the to-be-lubricated component includes a differential shaft bearing and a main shaft bearing, and the oil collecting member is formed with a first oil hole and a second oil hole penetrating through the oil collecting member, the first oil hole being communicated to the differential shaft bearing, and the second oil hole being communicated to the main shaft bearing.

In some embodiments of the utility model, the speed reducer assembly further comprises: the oil pump is used for pumping lubricating oil at the bottom of the mounting cavity to the parts to be lubricated.

In one embodiment of the utility model, the speed reducer assembly further comprises: the heat exchanger is arranged on the speed reducer box body, one end of the heat exchanger is connected with the oil outlet of the oil pump, and the other end of the heat exchanger is connected into the installation cavity.

In one embodiment of the utility model, the speed reducer assembly further comprises: and the filter is connected with the oil inlet of the oil pump.

A vehicle according to a second aspect of the utility model includes a speed reducer assembly according to the first aspect of the utility model.

According to the vehicle disclosed by the utility model, by arranging the speed reducer assembly of the first aspect, the first oil guide piece and the second oil guide piece are arranged, the first oil guide piece can have a good flow guiding effect on lubricating oil when the vehicle advances, and the second oil guide piece can have a good flow guiding effect on the lubricating oil when the vehicle backs, so that the lubricating oil always has a stable and good lubricating effect on parts to be lubricated under different working conditions of the vehicle.

Additional aspects and advantages of the utility model 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 utility model.

Drawings

FIG. 1 is a schematic illustration of a speed reducer assembly according to an embodiment of the utility model;

FIG. 2 is a schematic illustration of another angle of a speed reducer assembly according to an embodiment of the utility model;

FIG. 3 is a partial schematic view of the oil catcher shown in FIG. 1;

fig. 4 is a partial schematic view of the oil guide shown in fig. 2.

Reference numerals:

10. a rear case; 20. an oil collecting piece; 21. a first oil hole; 22. a second oil hole; 30. an oil guide; 31. a first oil guide; 311. a first oil guiding surface; 32. a second oil guide; 321. a second oil guiding surface; 40. a differential gear; 50. a spindle gear; 60. a countershaft gear; 70. a spindle bearing; 101. a main shaft bearing seat; 102. differential shaft bearing seat; 103. an oil delivery pipe;

100. a speed reducer assembly.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

A decelerator assembly 100 in accordance with an embodiment of the first aspect of the present utility model is described below with reference to fig. 1-4.

As shown in fig. 1-4, a decelerator assembly 100 according to an embodiment of the first aspect of the present utility model includes: the speed reducer comprises a speed reducer box body, an oil collecting piece 20, a first oil guide piece 31 and a second oil guide piece 32. Specifically, a mounting cavity is formed in the speed reducer box body; the oil collecting piece 20 is arranged in the mounting cavity and used for supplying oil to the parts to be lubricated in the mounting cavity; the first oil guide 31 is provided in the mounting chamber and adapted to guide splashed lubricating oil to the oil catcher 20 when the vehicle is advancing; the second oil guide 32 is provided in the mounting cavity and is adapted to guide splashed lubricating oil to the oil catcher 20 when the vehicle is reversed.

When the vehicle advances, the splashed lubricating oil falls onto the first oil guide 31 in the splashed direction and flows into the oil collecting member 20 along the first oil guide 31, and the lubricating oil is supplied to the parts to be lubricated in the mounting cavity while accumulating in the oil collecting member 20; when the vehicle is reversed, the splashing direction of the splashed lubricating oil changes, and at this time, the lubricating oil falls onto the second oil guide 32 and flows into the oil collecting member 20 along the second oil guide 32, and the lubricating oil is supplied to the parts to be lubricated in the installation cavity while accumulating in the oil collecting member 20. Therefore, when the vehicle moves forward or backward, splashed lubricating oil can always flow into the oil collecting part 20 along the first oil guide part 31 or the second oil guide part 32 and reliably flow to the parts to be lubricated to lubricate the parts to be lubricated, so that the lubricating oil always has a stable and good lubricating effect on the parts to be lubricated when the vehicle is under different working conditions.

According to the speed reducer assembly 100 of the embodiment of the utility model, the first oil guide 31 and the second oil guide 32 are arranged, and the first oil guide 31 can have a good flow guiding effect on lubricating oil when a vehicle advances, and the second oil guide 32 can have a good flow guiding effect on the lubricating oil when the vehicle backs, so that the lubricating oil always has a stable and good lubricating effect on parts to be lubricated under different working conditions of the vehicle.

In some embodiments of the present utility model, as shown in fig. 1 and 2, the speed reducer assembly 100 may further include a differential gear 40 and a counter gear 60 disposed within the mounting cavity, the first oil guide 31 being adapted to guide lubricant splashed by the differential gear 40 to the oil catcher 20 as the vehicle advances; the second oil guide 32 is adapted to guide the lubricant splashed by the counter gear 60 to the oil catcher 20 when the vehicle is reversed. Specifically, the differential gear 40 includes a front gear and a rear gear, the front gear is a large gear, the rear gear is a small gear, the front gear and the rear gear are coaxially arranged front and rear and coaxially rotate, the counter gear 60 includes a transmission gear and an intermediate gear, the transmission gear is a large gear, the intermediate gear is a small gear, the intermediate gear and the transmission gear are coaxially arranged front and rear and coaxially rotate, and the intermediate gear of the counter gear 60 is in meshed transmission with the front gear of the differential gear 40. For example, as shown in fig. 1 and 2, when the vehicle is moving forward, the differential gear 40 rotates clockwise, and the lubricant is splashed and thrown out in the direction of the helical teeth of the differential gear 40 under the rotation agitation of the front gear of the differential gear 40, and the splashed lubricant falls onto the first oil guide 31 and flows into the oil catcher 20 along the first oil guide 31; when the vehicle is reversed, the counter gear 60 rotates clockwise, and the lubricant is splashed and thrown out in the tangential direction of the counter gear 60 under the rotational agitation of the transmission gear of the counter gear 60, and the splashed lubricant falls onto the second oil guide 32 and flows into the oil catcher 20 along the second oil guide 32. Therefore, the first oil guide 31 and the second oil guide 32 are used for guiding the lubricating oil splashed at the differential gear 40 and the lubricating oil splashed at the auxiliary shaft gear 60 respectively, so that the structure is simple, and the oil guiding effect is stable and reliable.

For example, as shown in the embodiment of fig. 1 and 2, the first oil guide 31 guides the lubricating oil splashed on the differential gear 40 to the oil catcher 20, and the second oil guide 32 guides the lubricating oil splashed on the counter gear 60 to the oil catcher 20. In this embodiment, the rotational speed of the differential gear 40 is high while the vehicle is advancing, and the amount of the lubricating oil splashed into the first oil guide 31 is large, so the lubricating oil collected by the oil collecting member 20 is sufficient to satisfy the lubrication demand; when the vehicle is reversed, the rotation speed of the differential gear 40 is lower, and the auxiliary shaft gear 60 is higher than the rotation speed of the differential gear 40, so that the second oil guide 32 is arranged and is suitable for collecting the lubricating oil splashed by the auxiliary shaft gear 60, so as to ensure the amount of the lubricating oil splashed into the second oil guide 32, and further ensure that the lubricating oil collected by the oil collecting piece 20 is enough to meet the lubricating requirement. In other embodiments of the present utility model, the first oil guide 31 and the second oil guide 32 may be configured to collect the lubricant splashed on the counter gear 60, for example, two oil guides may be disposed on the left and right sides of the counter gear 60, respectively, and the oil collector 20 may be disposed between the two oil guides, and at the same time, the two oil guides may be inclined upward, and the ends of the oil guiding surfaces of the two oil collectors facing the counter gear 60 may be inclined in the tangential direction of the lubricant splashed on the counter gear 60.

For example, as shown in the embodiment of fig. 1 and 2, both the first oil guide 31 and the second oil guide 32 are adapted to guide splashed lubricating oil into the same oil collector 20. In other embodiments of the utility model, two oil collectors 20 may also be provided, wherein one oil collector 20 is adapted to collect lubrication oil guided on the first oil guide 31 and wherein the other oil collector 20 is adapted to collect lubrication oil guided on the second oil guide 32.

In one embodiment of the present utility model, referring to fig. 2, the first and second oil guides 31 and 32 may be both provided between the differential gear 40 and the main shaft gear 50 and on the upper side of the sub shaft gear 60. It will be appreciated that the lubricating oil is generally stored at the bottom position in the reducer casing, and the lubricating oil is splashed to the upper side position of the gear and is thrown out towards the tangential direction of the gear along with the rotation and stirring of the gear, and the first oil guide 31 and the second oil guide 32 are both arranged between the differential gear 40 and the main shaft gear 50 and are positioned on the upper side of the auxiliary shaft gear 60, so that the first oil guide 31 and the second oil guide 32 are positioned in the splashing direction of the lubricating oil, and the oil guiding operation of the first oil guide 31 and the second oil guide 32 is more convenient and quicker.

In one embodiment of the present utility model, as shown in fig. 2 and 4, the first oil guide 31 is located at one side of the differential gear 40 in the axial direction to receive the lubricating oil thrown out of the differential gear 40, and an upper side surface of the first oil guide 31 is formed as a first oil guide surface 311, at least a portion of the first oil guide 31 being inclined downwardly to extend to the oil collecting member 20 in a direction from the differential gear 40 toward the spindle gear 50. Thereby, the lubricant is splashed onto the first oil guiding surface 311 while the differential gear 40 rotates, and the lubricant flows along the first oil guiding surface 311 at a portion of the first oil guiding member 31 extending obliquely downward by gravity, thereby making the oil guiding effect of the first oil guiding member 31 better.

Specifically, the first oil guide 31 may be disposed at a position near the upper side of the gear teeth of the differential gear 40, and the oil flows along the tooth grooves of the differential gear 40 and splashes out from the position near the rear case from the gear teeth during the rotational stirring of the differential gear 40, and the first oil guide 31 may conveniently receive the splashed oil. Further, the first oil guide 31 may be disposed at a position where oil splashes most strongly in the rear case 10 when the differential gear 40 rotates, so that the first oil guide 31 may collect the splashed oil to the maximum. Preferably, the first oil guide 31 may also be disposed at a position where the oil splashes more severely in the front case, and the position of the first oil guide 31 may be disposed at an optimum position of the case according to the situation where the oil splashes when the speed reducer assembly 100 actually operates, mainly for receiving the oil splashed in the maximum amount.

Further, the portion of the first oil guide 31 extending obliquely downward is rounded at the connection position with the other portion of the first oil guide 31. This reduces the resistance of the lubricant flowing on the first oil guide 31, and makes the lubricant easier to flow.

In one embodiment of the present utility model, as shown in fig. 2 and 4, the second oil guide 32 is located at an upper side of the counter gear 60 to receive the lubricating oil thrown out of the counter gear 60, and a lower side surface of the second oil guide 32 is formed as a second oil guide surface 321, at least a portion of the second oil guide surface 321 extending obliquely upward to the oil collecting member 20 in a direction from the differential gear 40 toward the main gear 50. Accordingly, the auxiliary gear 60 rotates to stir the lubricant to splash on the second oil guiding surface 321, the lubricant flows along the second oil guiding surface 321 under the action of inertia, and the second oil guiding surface 321 is provided with a structure which extends at least partially obliquely upwards, so that the resistance of the splashed lubricant flowing on the second oil guiding surface 321 can be reduced, and the splashed lubricant can be well guided.

In some examples of the present utility model, referring to fig. 3 and 4, an end of the second oil guiding surface 321 facing the counter gear 60 may extend in a tangential direction of the lubricant splashed by the counter gear 60. Therefore, one end of the second oil guiding surface 321 facing the auxiliary gear 60 is arranged to extend along the tangential direction of the lubricating oil splashed by the auxiliary gear 60, so that when the auxiliary gear 60 agitates the lubricating oil to splash the lubricating oil, the splashed lubricating oil can splash onto the second oil guiding surface 321 more along the tangential direction, and meanwhile, the oil keeps larger splash inertia on the second oil guiding surface 321, so that the oil better flows into the oil collecting piece 20 along the second oil guiding surface 321, and the second oil guiding piece 32 has better oil guiding effect. Of course, the angle of the portion of the first oil guiding surface 311 may be set to an angle corresponding to the tangential direction of the oil splashed from the differential gear 40, so that the first oil guiding surface 311 can collect the tangentially splashed oil to the maximum extent.

Preferably, the first oil guiding surface 311 and the second oil guiding surface 321 may have an oleophobic coating formed thereon. This can further reduce the flow resistance and viscosity of the lubricating oil on the first oil guiding surface 311 and the second oil guiding surface 321, so that the lubricating oil can flow more smoothly on the first oil guiding surface 311 and the second oil guiding surface 321.

In some embodiments of the present utility model, as shown in fig. 4, the first oil guide 31 and the second oil guide 32 are integrally formed. Specifically, the first oil guide 31 and the second oil guide 32 form the entirety of the oil guide 30. Further, the upper side of the oil guide 30 is a first oil guide surface 311, and the lower side of the oil guide 30 is a second oil guide surface 321. Therefore, the first oil guide 31 and the second oil guide 32 are arranged as the oil guide 30 which is integrally formed, the structure is simple, and the processing, the manufacturing and the assembly are convenient.

Of course, the first oil guide 31 and the second oil guide 32 may be provided in a separable structure, for example, the first oil guide 31 and the second oil guide 32 are fixedly connected and fixed in the case by fasteners.

In one embodiment of the present utility model, as shown in fig. 4, the oil guide 30 has a cross-section in a laterally arranged Y-shape in a projection plane perpendicular to the axis of the differential gear 40. Therefore, the structure is simple, and the design is exquisite.

In one embodiment of the present utility model, as shown in fig. 2, the first and second oil guides 31 and 32 may be integrally formed with the reducer casing. Therefore, the step of assembling the first oil guide 31 and the second oil guide 32 into the installation cavity of the reduction gearbox body can be omitted, and meanwhile, the first oil guide 31 and the second oil guide 32 can be firmly and stably fixed in the installation cavity of the reduction gearbox body, so that the oil guide of the first oil guide 31 and the second oil guide 32 is more stable.

In some embodiments of the present utility model, as shown in fig. 1, the parts to be lubricated may include a differential shaft bearing and a main shaft bearing 70, and the oil collecting member 20 is formed with a first oil hole 21 and a second oil hole 22 penetrating the oil collecting member 20, the first oil hole 21 being connected to the differential shaft bearing, and the second oil hole 22 being connected to the main shaft bearing 70. Thus, when the differential shaft bearing and the main shaft bearing 70 are lubricated, the lubricating oil accumulated in the oil collecting member 20 flows out from the first oil hole 21 to the differential shaft bearing and from the second oil hole 22 to the main shaft bearing 70, so that the lubricating oil can reliably flow to the differential shaft bearing and the main shaft bearing 70 and has good lubricating effect, and the lubricating oil collecting device has a simple structure and is convenient to process. Further, the oil collecting member 20 is located at a lower side of the first oil guiding member 31 and the second oil guiding member 32, specifically, one end of the first oil guiding surface 311 facing the spindle gear 50 is located above the oil collecting member 20, and one end of the second oil guiding surface 321 facing the spindle gear 50 is located above the oil collecting member 20.

In one embodiment of the present utility model, referring to fig. 1, an oil delivery passage is provided in the speed reducer case, the oil delivery passage being provided in the installation cavity of the speed reducer case and integrally formed with the speed reducer case, the oil delivery passage communicating with the first oil hole 21 and the differential shaft bearing. Thus, the lubricating oil in the oil collecting piece 20 flows into the oil conveying channel from the first oil hole 21 and flows to the differential shaft bearing along the oil conveying channel to lubricate the differential shaft bearing, so that a good flow guiding effect is achieved on the lubricating oil, and the lubricating effect of the lubricating oil is better.

In one embodiment of the present utility model, as shown in fig. 2, an oil delivery pipe 103 is disposed in the reducer housing, and an inner wall of the oil delivery pipe 103 defines an oil delivery passage. Therefore, the structure is simple, and the oil guide is stable.

In one embodiment of the present utility model, referring to fig. 1, the reducer casing includes a front casing and a rear casing 10, the front casing and the rear casing 10 cooperatively forming a mounting cavity, and the oil guide 30 is mounted and fixed on the rear casing 10. It will be appreciated that the differential gear 40 and the counter gear 60 are both helical gears, and when the differential gear 40 rotates, oil is more likely to splash to the rear housing 10 along with the rotational stirring of the differential gear 40, and the oil guide 30 is mounted on the rear housing 10, so that the oil guide 30 can better guide the splashed lubricating oil. Preferably, a similar oil guide rib structure to the oil guide 30 may be symmetrically disposed on the front case of the speed reducer to collect the lubricating oil on the wall surface of the front case. Further, the surface of the oil guide rib structure may be formed with an oil repellent coating so that oil may more smoothly flow into the oil collecting member 20.

In some embodiments of the present utility model, referring to FIG. 1, the decelerator assembly 100 may further include: the oil pump is used for pumping lubricating oil at the bottom of the installation cavity to the part to be lubricated. Therefore, by arranging the oil pump and the oil guide pipe, the parts to be lubricated can be actively pumped with oil for lubrication, so that the lubrication effect of the parts to be lubricated is further improved, and the speed reducer assembly 100 operates more stably.

In one embodiment of the present utility model, referring to FIG. 1, the decelerator assembly 100 may further include: the heat exchanger is arranged on the speed reducer box body, one end of the heat exchanger is connected with the oil outlet of the oil pump, and the other end of the heat exchanger is connected into the installation cavity. It can be understood that the part to be lubricated can produce more heat when the speed reducer normally operates, and when lubricating oil is used for lubricating the part to be lubricated, heat can be transferred to the lubricating oil, and when the temperature of the lubricating oil is higher, the lubricating effect of the lubricating oil can be reduced, so that the heat exchanger is arranged for cooling the lubricating oil, the temperature of the lubricating oil can be better controlled, and the lubricating effect of the lubricating oil on the part to be lubricated is better.

In one embodiment of the present utility model, referring to FIG. 1, the decelerator assembly 100 may further include: the filter is connected with an oil inlet of the oil pump. Therefore, impurities in the recycled lubricating oil can be filtered, so that the lubricating effect of the lubricating oil is more stable and durable. Further, a filter may be provided in the installation cavity, and the filter may be provided on the front case.

In one embodiment of the utility model, referring to fig. 1, the bottom of the reducer casing may be provided with an oil pan. Therefore, by arranging the oil pan at the bottom of the box body, the accumulation of lubricating oil at the bottom of the box body can be prevented, so that the stirring of the differential gear 40 and the auxiliary shaft gear 60 is more sufficient, and the lubricating effect of the lubricating oil on the parts to be lubricated is improved.

In one embodiment of the present utility model, as shown in fig. 2, a main shaft bearing housing 101 for fixing the main shaft bearing 70 may be formed on the front case, and the main shaft bearing housing 101 is opened with an oil inlet passage, which is communicated with the second oil hole 22 of the oil collecting member 20 through the main shaft bearing housing 101. This provides a good flow guide for the lubricating oil flowing out of the second oil hole 22, so that the lubricating oil can reliably flow to the main shaft bearing 70 for lubrication.

In one embodiment of the present utility model, referring to fig. 1, a sub bearing seat for fixing a sub bearing may be further formed on the front case, and a through oil guide passage is formed between the main bearing seat 101 and the sub bearing seat. Therefore, the structure is simple, and lubricating oil can conveniently flow into the auxiliary bearing seat along the oil guide channel after flowing through the main shaft bearing seat 101, so that splashed lubricating oil can fall into the oil pan from the auxiliary bearing position to realize circulating flow.

In one embodiment of the present utility model, referring to fig. 1, the front case may further be formed with a differential bearing housing 102 for fixing a differential bearing, and the speed reducer assembly 100 may further include an oil baffle plate disposed between the oil collecting member 20 and the differential bearing housing 102 for guiding oil to flow from the first oil hole 21 to the differential bearing to lubricate the differential bearing. Therefore, the structure is simple, and the oil guiding effect is good. Further, the oil baffle plate and the box body can be connected through a fastener.

A vehicle according to an embodiment of the second aspect of the utility model is described below with reference to fig. 1 to 4.

As shown in fig. 1-4, a vehicle according to an embodiment of the second aspect of the utility model includes a decelerator assembly 100 according to an embodiment of the first aspect of the utility model.

Other constructions and operations of vehicles according to embodiments of the present utility model are known to those of ordinary skill in the art and will not be described in detail herein.

According to the vehicle of the embodiment of the utility model, by providing the reducer assembly 100 of the first aspect of the embodiment, the first oil guide 31 and the second oil guide 32 are provided, and the first oil guide 31 can have a good flow guiding effect on lubricating oil when the vehicle is moving forward, and the second oil guide 32 can have a good flow guiding effect on lubricating oil when the vehicle is moving backward, so that the lubricating oil always has a stable and good lubricating effect on the parts to be lubricated under different working conditions of the vehicle.

A vehicle according to a specific embodiment of the present utility model will be described below with reference to fig. 1 to 4.

As shown in fig. 1-4, the vehicle includes a speed reducer assembly 100, and the speed reducer assembly 100 is installed in the vehicle. The speed reducer assembly 100 includes a speed reducer case, an oil collecting member 20, an oil guide 30, a differential gear 40, a counter gear 60, a main shaft gear 50, components to be lubricated, an oil baffle, an oil pump, an oil guide pipe, a heat exchanger, and a filter. The speed reducer box comprises a front box body and a rear box body 10, the front box body and the rear box body 10 are matched to form an installation cavity of the speed reducer box body, an oil collecting piece 20, an oil guide piece 30, a differential gear 40, a countershaft gear 60, a main shaft gear 50, parts to be lubricated, an oil baffle and an oil guide pipe are all arranged in the installation cavity, and an oil pump, a heat exchanger and a filter are fixed on the front box body.

The oil guide 30 has a cross section of a Y shape arranged transversely, a first oil guide 31 is formed at the upper side, a second oil guide 32 is formed at the lower side, and the oil guide 30 is arranged obliquely above the differential shaft bearing seat of the rear case 10 and integrally formed with the rear case 10.

The speed reducer box body is provided with a main shaft bearing seat 101, a secondary bearing seat and a differential shaft bearing seat 102, the differential gear 40, the secondary shaft gear 60 and the main shaft gear 50 are respectively and fixedly arranged on the corresponding bearing seats through gear shafts and bearings, and the differential gear 40, the secondary shaft gear 60 and the main shaft gear 50 are in tooth meshing connection for transmission. The components to be lubricated include a main shaft bearing 70 and a differential shaft bearing. The oil collecting piece 20 is respectively connected and fixed on the front box body and the rear box body 10 from front to back, a first oil hole 21 and a second oil hole 22 are formed in the oil collecting piece 20, the first oil hole 21 is communicated with the differential shaft bearing at the front box body position, an oil baffle plate is arranged between the first oil hole 21 and the differential shaft bearing seat 102 to play a role in guiding oil, a penetrating oil inlet oil duct is formed in the main shaft bearing seat 101, and the second oil hole 22 is communicated with the main shaft bearing 70 through the oil inlet oil duct; the main shaft bearing seat 101 is communicated with the auxiliary bearing seat through an oil guide passage; in the rear case 10, an oil pipe 103 is provided between the differential bearing housing 102 and the first oil hole 21, and the first oil hole 21 is communicated to the differential bearing through the oil pipe 103.

The inlet end of the oil guide pipe is connected with the oil pump, and the outlet end of the oil guide pipe is communicated with the differential bearing; one end of the heat exchanger is connected to the mounting cavity, and the other end of the heat exchanger is connected to an oil outlet of the oil pump; the filter is connected with an oil inlet of the oil pump.

When the parts to be lubricated are actively lubricated, lubricating oil in the installation cavity enters the filter through the inlet of the filter to realize filtration, the filtered oil is pumped into the differential mechanism oil guide pipe through the oil pump, one part of the oil flows into the heat exchanger through the oil duct to be cooled, and the other part of the oil enters the differential shaft bearing seat 102 through the differential mechanism oil guide pipe to lubricate the differential mechanism.

When the parts to be lubricated are lubricated by splash, and when the vehicle is in a forward working condition, the differential gear 40 rotates to stir the splash of lubricating oil, the splashed lubricating oil falls onto the first oil guide 31 and flows into the oil collecting piece 20 along the first oil guide 31, and the lubricating oil is accumulated in the oil collecting piece 20 and simultaneously supplies oil to the parts to be lubricated in the mounting cavity; when the vehicle is reversed, the counter gear 60 rotates to agitate the lubricant, and the splashed lubricant falls onto the second oil guide 32 and flows into the oil collecting member 20 along the second oil guide 32, and the lubricant is supplied to the parts to be lubricated in the installation cavity while accumulating in the oil collecting member 20. Therefore, when the vehicle moves forward or backward, splashed lubricating oil can always flow into the oil collecting part 20 along the first oil guide part 31 or the second oil guide part 32 and reliably flow to the parts to be lubricated to lubricate the parts to be lubricated, so that the lubricating oil always has a stable and good lubricating effect on the parts to be lubricated when the vehicle is in different working conditions.

In the description of the present utility model, it should 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", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., 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 utility model. In this specification, schematic representations of the above terms are not necessarily directed 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. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

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

Claims (13)

1. A speed reducer assembly, comprising:

the speed reducer comprises a speed reducer box body, wherein an installation cavity is formed in the speed reducer box body;

the oil collecting piece is arranged in the mounting cavity and used for supplying oil to the parts to be lubricated in the mounting cavity;

the first oil guide piece is arranged in the mounting cavity and is suitable for guiding splashed lubricating oil to the oil collecting piece when the vehicle advances;

the second oil guide piece is arranged in the mounting cavity and is suitable for guiding splashed lubricating oil to the oil collecting piece when the vehicle is reversed.

2. The speed reducer assembly of claim 1, further comprising a differential gear and a countershaft gear disposed within the mounting cavity, the first oil guide being adapted to direct lubricant splashed by the differential gear to the oil catcher as the vehicle advances; the second oil guide is adapted to guide the lubricating oil splashed by the counter gear to the oil collecting member when the vehicle is reversed.

3. The speed reducer assembly of claim 2, wherein the first and second oil guides are each disposed between the differential gear and the main shaft gear and on an upper side of the auxiliary shaft gear.

4. A reducer assembly according to claim 3, wherein the first oil guide is located on one side of the differential gear in the axial direction to receive lubricating oil thrown out of the differential gear, and an upper side surface of the first oil guide is formed as a first oil guide surface, at least a portion of which extends obliquely downward to the oil collecting member in a direction from the differential gear toward the main shaft gear.

5. A reducer assembly according to claim 3, wherein the second oil guide is located on the upper side of the counter gear to receive lubricating oil thrown out of the counter gear, and a lower side surface of the second oil guide is formed as a second oil guide surface, at least a portion of which extends obliquely upward to the oil collecting member in a direction from the differential gear toward the main gear.

6. The speed reducer assembly of claim 5, wherein an end of the second oil guiding surface facing the counter gear extends in a tangential direction of the lubricating oil splashed by the counter gear.

7. The speed reducer assembly of claim 1, wherein the first oil guide and the second oil guide are integrally formed.

8. The reducer assembly of claim 7, wherein said first and second oil guides are integrally formed with said reducer housing.

9. The speed reducer assembly of claim 1, wherein the component to be lubricated comprises a differential shaft bearing and a main shaft bearing, the oil collecting member is formed with a first oil hole and a second oil hole penetrating through the oil collecting member, the first oil hole is communicated to the differential shaft bearing, and the second oil hole is communicated to the main shaft bearing.

10. The speed reducer assembly of any one of claims 1-9, further comprising: the oil pump is used for pumping lubricating oil at the bottom of the mounting cavity to the parts to be lubricated.

11. The speed reducer assembly of claim 10, further comprising: the heat exchanger is arranged on the speed reducer box body, one end of the heat exchanger is connected with the oil outlet of the oil pump, and the other end of the heat exchanger is connected into the installation cavity.

12. The speed reducer assembly of claim 10, further comprising: and the filter is connected with the oil inlet of the oil pump.

13. A vehicle comprising a speed reducer assembly according to any one of claims 1-12.

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