Speed reducer, driving system and vehicle

Abstract

The invention provides a speed reducer, a driving system and a vehicle, relates to the technical field of driving mechanisms, and aims at solving the problem that an existing lubricating structure for the speed reducer cannot fully lubricate the speed reducer. The speed reducer comprises a shell, a planet row speed reducing mechanism and a lubricating piece. A containing cavity is formed in the shell, and the planet row speed reducing mechanism is arranged in the containing cavity. The lubricating piece is arranged in the containing cavity and is opposite to the planet row speed reducing mechanism. A plurality of lubricating holes are formed in the surface of the side, close to the speed reducing mechanism, of the lubricating piece. The multiple lubricating holes are formed in the circumferential direction at intervals, and the lubricating piece is further provided with a communicating channel communicating with the multiple lubricating holes. The speed reducer can fully lubricate the planet row speed reducing mechanism.

Description

Technical Field

[0001] The present invention relates to the technical field of drive mechanism, and specifically to a reducer, a drive system and a vehicle. Background Art

[0002] With the improvement of people's living standards, cars have gradually become an essential means of transportation for most families. Among them, the drive mechanism is an important part of the car, which can provide power so that the car can run normally. The reducer is an important part of the drive mechanism, which can adjust the speed and thus adjust the vehicle speed.

[0003] Generally, the reducer generates heat during operation, and the reducer needs to be lubricated in time so that the reducer can run smoothly. However, the existing lubrication structure for the reducer cannot fully lubricate the reducer, and the lubrication effect is poor. Summary of the invention

[0004] The purpose of the present application is to provide a reducer, a drive system and a vehicle, so as to solve the problem that the existing lubrication structure for the reducer cannot fully lubricate the reducer.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0006] In a first aspect, an embodiment of the present application provides a reducer, comprising a housing, a planetary gear reduction mechanism, and a lubricating member. The housing is formed with a receiving cavity, and the planetary gear reduction mechanism is arranged in the receiving cavity. The lubricating member is arranged in the receiving cavity, and is arranged opposite to the planetary gear reduction mechanism. Among them, a surface of the lubricating member close to the gear reduction mechanism is provided with a plurality of lubrication holes. The plurality of lubrication holes are arranged at intervals along the circumferential direction, and the lubricating member is also provided with a connecting channel connected with the plurality of lubrication holes.

[0007] According to the above technical means, the reducer provided in the embodiment of the present application can provide installation space for the planetary gear reduction mechanism and the lubricating parts in the housing, which is convenient for the installation and setting of the reducer as a whole. The lubricating oil can enter the multiple lubrication holes through the connecting channel, and then spray out from the multiple lubrication holes to lubricate the planetary gear reduction mechanism. Since the multiple lubrication holes are arranged at intervals along the circumferential direction, the multiple lubrication holes can lubricate the components at different positions in the reducer. When the reducer is not running, the components at different positions can also be lubricated, thereby ensuring the lubrication effect of the reducer.

[0008] In a possible embodiment, the housing includes a bottom wall and a side wall. The bottom wall is located on a side of the lubricating member away from the planetary gear reduction mechanism. The side wall is located on a side of the bottom wall close to the lubricating member, and is arranged around the lubricating member and the periphery of the planetary gear reduction mechanism. The surface of the bottom wall close to the lubricating member has a limiting groove. The lubricating member is arranged in the limiting groove and is clamped with the bottom wall.

[0009] According to the above technical means, by setting a limit groove on the bottom wall, the lubricating part can be fixed on the housing, thereby achieving fixation of the lubricating part. At the same time, fixation by means of the limit groove has a simple structure and is easy to implement.

[0010] In a possible implementation manner, the lubricating element is annular, and the limiting groove is annular.

[0011] According to the above technical means, when the lubricating component is arranged in the limiting groove, the limiting groove can play a better limiting role, making it less likely for the lubricating component to fall off from the limiting groove.

[0012] In a possible implementation, the surface of the lubricating component away from the planetary gear reduction mechanism has a communication channel, which is annular. A circulation channel is provided on the bottom wall. One end of the circulation channel is connected to the limit groove, and the other end forms an opening on the bottom wall.

[0013] According to the above technical means, since the connecting channel is annular and multiple lubrication holes are arranged at intervals along the circumferential direction, the connecting channel can be connected with multiple oil guide holes to achieve the distribution of lubricating oil. At the same time, since the connecting channel is arranged on the surface of the lubricating part away from the planetary gear reduction mechanism, it can be directly made on the surface during production, which is simple and convenient to operate. Since the circulation channel has an opening formed on the bottom wall, the lubricating oil can be added to the circulation channel through the opening. Then, the lubricating oil can enter the connecting channel through the circulation channel, and then enter the different lubrication holes from the connecting channel and be sprayed out from the different lubrication holes.

[0014] In a possible implementation manner, the diameter of the lubrication hole is smaller than the radial dimension of the communication channel along the lubrication component.

[0015] According to the above technical means, since the size of the connecting channel is relatively large, the lubricating oil in the connecting channel can enter the lubrication hole more smoothly and be sprayed out from the lubrication hole, and the flow is relatively smooth.

[0016] In a possible implementation manner, both the inner wall and the outer wall of the lubricating member abut against the groove wall of the limiting groove, so that the lubricating member is clamped in the limiting groove.

[0017] According to the above technical means, the lubricating part can be interference-fitted in the limiting groove, and the lubricating part can be better arranged in the limiting groove through the interference fit with the limiting groove. At the same time, since the inner wall and the outer wall of the lubricating part are both against the groove wall of the limiting groove, it can be ensured that the lubricating oil will not spray out from the limiting groove, and the lubricating oil can be sprayed out through the lubrication hole, so as to better lubricate the planetary gear reduction mechanism.

[0018] In a possible implementation manner, the reducer further includes a first sealing member. The first sealing member is sleeved on the outer wall of the lubricating member and abuts against the outer wall of the lubricating member and the groove wall of the limiting groove respectively.

[0019] According to the above technical means, the first sealing member can ensure sealing between the outer wall of the lubricating member and the limiting groove, thereby preventing the lubricating oil from flowing out therefrom.

[0020] In a possible implementation, the reducer further includes a second sealing member. The lubricating member is sleeved on the outer wall of the second sealing member, and the second sealing member abuts against the inner wall of the lubricating member and the groove wall of the limiting groove respectively.

[0021] According to the above technical means, the second sealing member can ensure sealing between the inner wall of the lubricating member and the limiting groove to prevent the lubricating oil from flowing out therefrom.

[0022] In a possible implementation, the planetary gear reduction mechanism includes a first planet carrier and a plurality of first planetary gears. The plurality of planetary gears are arranged on the first planet carrier at intervals along the circumference of the first planet carrier. The plurality of lubrication holes are used to be arranged relative to the plurality of first planetary gears during the rotation of the plurality of first planetary gears.

[0023] According to the above technical means, since the lubrication hole can be arranged opposite to the first planetary gear, the oil sprayed from the lubrication hole can be effectively sprayed onto the first planetary gear to lubricate the first planetary gear, achieving a good lubrication effect. Since the multiple lubrication holes are arranged at intervals along the circumference. In this way, when the multiple first planetary gears cannot rotate due to the slippage of the wheels on the other side, the multiple lubrication holes can also lubricate the first planetary gears at different positions respectively to ensure the lubrication effect.

[0024] In a possible implementation manner, the axis of the lubrication hole is parallel to the rotation axis of the first planetary gear.

[0025] According to the above technical means, when the lubrication hole is arranged opposite to the first planetary gear, the oil sprayed from the lubrication hole can be sprayed directly in the direction of the first planetary gear, so that the lubricating oil can better reach the first planetary gear and lubricate the structure at the first planetary gear to ensure the lubrication effect.

[0026] In a possible implementation, the number of lubrication holes is greater than the number of the first planetary gears.

[0027] According to the above technical means, since the number of lubrication holes is greater than the number of the first planetary gears, more lubricating oil can be sprayed onto the first planetary gears during the lubrication process, thereby ensuring the lubrication effect.

[0028] In a possible implementation manner, the plurality of lubrication holes are evenly distributed along the circumference of the lubricating element.

[0029] According to the above technical means, since multiple lubrication holes are evenly distributed along the circumferential intervals of the lubricating component, each position can be well lubricated, avoiding the situation where some lubrication holes are too far apart along the circumferential direction, resulting in some first planetary gears not being lubricated when not rotating.

[0030] In a second aspect, an embodiment of the present application provides a drive system comprising any one of the reducers in the first aspect.

[0031] Since the drive system provided in the embodiment of the present application includes any one of the reducers in the first aspect, it can solve the same technical problems as the above-mentioned reducer and achieve the same technical effects, which will not be repeated here.

[0032] In a third aspect, an embodiment of the present application provides a vehicle comprising any drive system in the second aspect.

[0033] Since the vehicle provided in the embodiment of the present application includes the drive system in the second aspect, it can solve the same technical problems as the above-mentioned drive system and achieve the same technical effects, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A schematic diagram of the structure of a drive system provided in an embodiment of the present application;

[0035] Figure 2 A partial enlarged view of the lubricating part of the reducer is provided for the embodiment of the present application;

[0036] Figure 3 A schematic diagram of the structure of a lubricating component provided in an embodiment of the present application. Description of the drawings:

[0038] 100-drive system; 200-reducer; 300-drive motor; 10-planetary gear reduction mechanism; 11-first planetary carrier; 12-first planetary gear; 13-needle bearing; 14-inner gear ring; 15-second planetary gear; 16-second planetary carrier; 17-outer gear ring; 20-housing; 21-bottom wall; 211-limiting groove; 212-circulation channel; 30-lubricating part; 301-lubricating hole; 302-connecting channel; 41-stator; 42-rotor; 43-drive gear. DETAILED DESCRIPTION

[0039] In order to enable ordinary persons in the art to better understand the technical solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0040] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims.

[0041] With the improvement of people's living standards, cars have gradually become people's main means of transportation. Among them, the reducer is an important part of the car. In the related technology, a two-stage planetary gear structure is used to form a reducer, which may include a planetary carrier, a primary planetary gear, a secondary planetary gear and a ring gear. Among them, the primary planetary gear is arranged on the planetary carrier, and the planetary carrier can be driven to rotate by the primary planetary gear. The secondary planetary gear is located on the outside of the planetary carrier and rotates driven by the planetary carrier. The secondary planetary gear is connected to the ring gear, and the ring gear rotates by the rotation of the secondary planetary gear.

[0042] In addition, the planetary gears of the first-stage planetary gear set need to be lubricated to ensure that they can rotate smoothly. Therefore, in the related art, a single fixed oil guide hole is generally provided on the housing of the reducer. In this way, the planetary gears can be lubricated through the oil guide hole in sequence as the planet carrier rotates.

[0043] Based on the above structure, the drive shafts on the left and right sides of the car can be connected to the planetary carrier and the ring gear structure respectively, and driven by the planetary carrier and the ring gear. When one of the tires on both sides of the vehicle slips and the tire on the other side cannot rotate, the planetary carrier is in a non-rotating state, so that the multiple planetary gears cannot rotate with the planetary carrier. At this time, since the position of the oil guide hole is fixed, the multiple planetary gears cannot pass through the oil guide hole in turn, so that the planetary gears cannot be fully lubricated, which may cause problems such as wear and bonding failure of the planetary gear pair and the needle bearing.

[0044] Based on this, the embodiment of the present application provides a vehicle. The embodiment of the present application does not specifically limit the specific type of the vehicle. For example, the vehicle provided in the embodiment of the present application can be an electric car, a hybrid car, or a solar car.

[0045] In order to realize the basic functions of a car, the vehicle may include components such as a body, a chassis, a power system, and an electrical system.

[0046] The vehicle body may include a vehicle frame, vehicle doors, and vehicle windows. The vehicle frame may form the overall shape of the vehicle exterior and form a seating space for accommodating passengers. The vehicle doors may be rotatably connected to the vehicle frame and may open or close the interior passenger space. The vehicle windows may be installed on the vehicle doors or the vehicle frame to facilitate passengers to observe the external environment.

[0047] The chassis may include components such as a transmission system and a drive system. The drive system can drive the wheels to rotate. Depending on the drive mode of the drive system, the drive system can be divided into front-wheel drive, rear-wheel drive, and four-wheel drive arrangements. The transmission system can transfer the power generated by the engine to the wheels.

[0048] The power system can provide power for the vehicle so that the vehicle can complete basic driving functions. Depending on the type of vehicle, the composition of the power system is also different. Exemplarily, when the vehicle is an electric vehicle, the power system may include an electric motor.

[0049] The following is a further introduction to the drive system provided in the embodiment of the present application. Figure 1 As shown, Figure 1 A schematic diagram of a drive system 100 provided in an embodiment of the present application, the drive system 100 may include a reducer 200 and a drive motor 300. The drive motor 300 may be connected to the reducer 200. The drive motor 300 may convert electrical energy into mechanical energy to provide power for the vehicle, and the reducer 200 may adjust the rotation speed so that the vehicle runs at different speeds. In addition, the reducer 200 may also make the torque output by the wheel greater.

[0050] like Figure 1 As shown, the driving motor 300 may include a rotor 42, a stator 41 and a driving gear 43. The rotor 42 may rotate under the action of a magnetic field, thereby driving the driving gear 43 to rotate. The driving gear 43 may mesh with the reducer 200, driving the reducer 200 to operate and adjust the driving speed.

[0051] Next, the reducer 200 provided in the embodiment of the present application is further introduced, and reference is made to Figure 1 The reducer 200 may include a planetary gear reduction mechanism 10, a housing 20, and a lubricating member 30. The housing 20 may be formed with an installation cavity, and the planetary gear reduction mechanism 10 and the lubricating member 30 may be arranged in the accommodation cavity. Thus, the housing 20 may provide an installation space for the planetary gear reduction mechanism 10 and the lubricating member 30, facilitating the installation and setting of the reducer 200 as a whole.

[0052] The lubricating member 30 can be arranged opposite to the planetary gear reduction mechanism 10, such as Figure 1 and Figure 2 As shown, Figure 2 A partial enlarged view of the lubricating member 30 of the reducer 200 is provided for the embodiment of the present application. The surface of the lubricating member 30 close to the planetary gear reduction mechanism 10 may be provided with a plurality of lubricating holes 301. The plurality of lubricating holes 301 may be arranged at intervals along the circumferential direction. The lubricating member 30 is also provided with a connecting channel 302 connected with the plurality of lubricating holes 301.

[0053] Thus, the lubricating oil can enter the multiple lubricating holes 301 through the connecting channel 302, and then spray out from the multiple lubricating holes 301 to lubricate the planetary gear reduction mechanism 10. Since the multiple lubricating holes 301 are arranged at intervals along the circumferential direction, the multiple lubricating holes 301 can lubricate the components at different positions in the reducer 200. When the reducer 200 is not running, the components at different positions can also be lubricated, thereby ensuring the lubrication effect of the reducer 200.

[0054] Next, the planetary gear reduction mechanism 10 provided in the embodiment of the present application is introduced. Figure 1 As shown, in some embodiments, the planetary gear reduction mechanism 10 may include a first planet carrier 11 and a plurality of first planetary gears 12. In particular, along the circumference of the first planet carrier 11, the plurality of first planetary gears 12 may be arranged on the first planet carrier 11 at intervals. The driving gear 43 may mesh with the plurality of first planetary gears 12. In this way, the driving gear 43 may drive the plurality of first planetary gears 12 to rotate. In particular, the driving gear 43 may serve as a sun gear.

[0055] In addition, in some embodiments, the planetary gear reduction mechanism 10 may further include a needle bearing 13, which is disposed on the first planet carrier 11, and the first planetary gear 12 is mounted on the first planet carrier 11 through the needle bearing 13. By providing the needle bearing 13, the service life of the first planetary gear 12 can be increased.

[0056] like Figure 1 As shown, the planetary gear reduction mechanism 10 may further include an inner ring gear 14, a second planetary gear 15, a second planet carrier 16, and an outer gear. The inner gear may be located at the periphery of the first planetary gear 12 and meshed with the first planetary gear 12. At the same time, the second planetary gear 15 is located at the periphery of the inner gear and meshed with the inner ring gear 14, and the inner ring gear 14 may serve as a sun gear. In this way, the rotation of the first planetary gear 12 may drive the inner ring gear 14 to rotate, thereby driving the second planetary gear 15 to rotate.

[0057] The second planetary gear 15 can be arranged on the second planetary carrier 16. The second planetary carrier 16 can be fixedly arranged on the housing 20. The outer ring gear 17 can mesh with the second planetary gear 15. In this way, the rotation of the second planetary gear 15 can drive the ring gear to rotate. The first planetary carrier 11 and the outer ring gear 17 can be connected to external mechanisms (wheels on both sides) respectively to achieve power transmission.

[0058] The plurality of lubrication holes 301 can be used to be arranged opposite to the plurality of first planetary gears 12 during the rotation of the plurality of first planetary gears 12. In this way, since the lubrication holes 301 can be arranged opposite to the first planetary gears 12, the lubricating oil sprayed from the lubrication holes 301 can be effectively sprayed to the first planetary gears 12 to lubricate the first planetary gears 12, thus achieving a good lubrication effect.

[0059] It is understandable that the plurality of first planetary gears 12 can be connected to one side of the wheel through the first planetary carrier 11, and the outer gear ring 17 can be connected to one side of the wheel. In this way, when the wheel connected to the outer gear ring 17 slips, the first planetary gears 12 stop rotating, the first planetary carrier 11 stops rotating, and the wheel on the other side connected to the first planetary carrier 11 cannot rotate.

[0060] As mentioned above, since the multiple lubrication holes 301 are arranged at intervals along the circumferential direction, when the multiple first planetary gears 12 cannot rotate due to the slipping of the wheels on the other side, the multiple lubrication holes 301 can also lubricate the first planetary gears 12 at different positions (for example, lubricate the needle bearing 13 and the fixing pin for mounting the needle bearing 13) to ensure the lubrication effect.

[0061] In some embodiments, the axis of the lubrication hole 301 may be parallel to the rotation axis of the first planetary gear 12. Thus, when the lubrication hole 301 is arranged opposite to the first planetary gear 12, the oil sprayed from the lubrication hole 301 may be sprayed directly toward the first planetary gear 12, so that the lubrication oil can better reach the first planetary gear 12, lubricate the structure at the first planetary gear 12, and ensure the lubrication effect.

[0062] In some embodiments, the apertures of the plurality of lubrication holes 301 may be the same, so that the flow rates of the lubrication oil sprayed out of the plurality of lubrication holes 301 are similar, and the first planetary gears 12 at various locations can be better lubricated.

[0063] In some embodiments, Figure 3 As shown, Figure 3This is a schematic diagram of the structure of a lubricating member 30 provided in an embodiment of the present application, wherein a plurality of lubricating holes 301 are evenly spaced along the circumference of the lubricating member 30. Since the plurality of lubricating holes 301 are evenly spaced along the circumference of the lubricating member 30, each position can be well lubricated, and it is avoided that the circumferential spacing of some lubricating holes 301 is too large, resulting in that some first planetary gears 12 cannot be lubricated when not rotating.

[0064] In some embodiments, Figure 3 As shown, the centers of the multiple lubrication holes 301 can be evenly distributed along the circumference of the preset circle. At the same time, the rotation axes of the multiple first planetary gears 12 can also be evenly distributed along the circumference of the preset circle. In this way, the centers of the lubrication holes 301 can coincide with the rotation axes of the first planetary gears 12 during the rotation of the first planetary gears 12.

[0065] Of course, in other embodiments, the plurality of lubrication holes 301 may not be evenly spaced along the circumference of the lubricating member 30. For example, in some embodiments, the plurality of lubrication holes 301 may include a group of two, with a small spacing between the two lubrication holes 301 in each group, and a large spacing between two adjacent groups of lubrication holes 301.

[0066] In addition, in some embodiments, the number of lubrication holes 301 may be greater than the number of first planetary gears 12. Since the number of lubrication holes 301 is greater than the number of first planetary gears 12, more lubricating oil can be sprayed onto the first planetary gears 12 during lubrication to ensure lubrication effect. Exemplarily, the number of lubrication holes 301 may be multiple times the number of first planetary gears 12.

[0067] Of course, the number of lubrication holes 301 may be less than or equal to the number of first planetary gears 12, and the specific design may be made according to the actual situation, which is only described as an example here. For example, the number of lubrication holes 301 may be the same as the number of first planetary gears 12. At the same time, the spacing between two adjacent lubrication holes 301 along the circumferential direction may be the same as the spacing between two adjacent first planetary gears 12 along the circumferential direction. In this way, the lubrication holes 301 may be arranged one by one with the first planetary gears 12.

[0068] In order to fix the lubricating member 30, as Figure 2 As shown, in some embodiments, the housing 20 may include a bottom wall 21 ( Figure 1 ) and side walls (not shown). The bottom wall 21 can be located at a position away from the lubricating member 30 and the planetary gear reduction mechanism 10 ( Figure 1 The side wall may be located on one side of the bottom wall 21 close to the planetary gear reduction mechanism 10 and is arranged around the lubricating member 30 and the periphery of the planetary gear reduction mechanism 10.

[0069] The surface of the bottom wall 21 near the lubricating member 30 may have a limiting groove 211. The lubricating member 30 may be disposed in the limiting groove 211 and engaged with the bottom wall 21. Thus, by providing the limiting groove 211 on the bottom wall 21, the lubricating member 30 may be fixed to the housing 20, thereby achieving the fixation of the lubricating member 30. At the same time, the fixing by the limiting groove 211 is simple in structure and easy to implement.

[0070] Of course, in other embodiments, the lubricating member 30 can also be fixed in other ways. For example, a limiting groove 211 can be provided on the lubricating member 30, and a limiting column can be provided on the surface of the bottom wall 21 close to the lubricating member 30. The limiting column is located in the limiting groove 211. In this way, the lubricating member 30 can be fixed on the bottom wall 21.

[0071] In addition, the lubricating member 30 can also be arranged on the side wall and connected to the side wall. It is understandable that the specific fixing method of the lubricating member 30 can be designed according to actual conditions, and is only described as an example here.

[0072] In some embodiments, Figure 1 and Figure 2 As shown, the lubricating member 30 may be annular. Meanwhile, the limiting groove 211 may also be annular. Thus, when the lubricating member 30 is disposed in the limiting groove 211, the limiting groove 211 may play a better limiting role, so that the lubricating member 30 is less likely to fall off from the limiting groove 211.

[0073] Of course, in other embodiments, the lubricating member 30 and the limiting groove 211 may also be in other shapes. For example, the lubricating member 30 and the limiting groove 211 may also be in a square shape. The specific shapes of the lubricating member 30 and the limiting groove 211 may also be adjusted according to actual needs, and no further description is given here.

[0074] In some embodiments, Figure 1 and Figure 2 As shown, a connecting channel 302 may be provided on the surface of the lubricating member 30 away from the planetary gear reduction mechanism 10. The connecting channel 302 is annular. Since the connecting channel 302 is annular and the plurality of lubrication holes 301 are arranged at intervals along the circumferential direction, the connecting channel 302 may be connected with the plurality of oil guide holes to achieve the distribution of lubricating oil. At the same time, since the connecting channel 302 is arranged on the surface of the lubricating member 30 away from the planetary gear reduction mechanism 10, it can be directly manufactured on the surface during manufacturing, which is simple and convenient to operate.

[0075] Meanwhile, a circulation channel 212 may be provided on the bottom wall 21. One end of the circulation channel 212 is connected to the limiting groove 211, and the other end forms an opening on the bottom wall 21. In this way, since the circulation channel 212 forms an opening on the bottom wall 21, lubricating oil can be added into the circulation channel 212 through the opening. Exemplarily, the other end of the circulation channel 212 may penetrate the bottom wall 21 along the radial direction of the bottom wall 21. Alternatively, the other end of the circulation channel 212 may also penetrate the bottom wall 21 along the axial direction of the bottom wall 21, and the specific design may be made according to actual conditions.

[0076] Since the circulation channel 212 is connected with the limiting groove 211, and it can be known from the above that the communication channel 302 is located in the limiting groove 211 and is connected with the limiting groove 211, the lubricating oil can enter the communication channel 302 through the circulation channel 212, and then enter different lubricating holes 301 from the communication channel 302, and be sprayed out from different lubricating holes 301.

[0077] Of course, in other embodiments, there may be multiple communicating channels 302. Multiple communicating channels 302 are connected to multiple lubrication holes 301. The specific number of communicating channels 302 can be designed according to actual conditions, and is only described as an example here.

[0078] In some embodiments, Figure 2 As shown, the diameter of the lubricating hole 301 can be smaller than the radial dimension of the connecting channel 302 along the lubricating member 30. In this way, due to the larger dimension of the connecting channel 302, the lubricating oil in the connecting channel 302 can more smoothly enter the lubricating hole 301, and spray out from the lubricating hole 301, and the flow is relatively smooth. Of course, in other embodiments, the diameter of the lubricating hole 301 can also be larger than the radial dimension of the connecting channel 302 along the lubricating member 30.

[0079] In order to better arrange the lubricating member 30 in the limiting groove 211. In some embodiments, the inner wall of the lubricating member 30 and the outer wall of the lubricating member 30 are both against the groove wall of the limiting groove 211, so that the lubricating member 30 is clamped in the limiting groove 211. In this way, the lubricating member 30 can be interference-fitted in the limiting groove 211, and the lubricating member 30 can be better arranged in the limiting groove 211 through the interference fit with the limiting groove 211.

[0080] At the same time, since the inner wall and the outer wall of the lubricating part 30 are in contact with the groove wall of the limiting groove 211, it can be ensured that the lubricating oil will not spray out from the limiting groove 211, and the lubricating oil can be sprayed out through the lubrication hole 301 to better lubricate the planetary gear reduction mechanism 10.

[0081] In other embodiments, the reducer 200 may also include a first seal. The first seal may be sleeved on the outer wall of the lubricating member 30. The first seal abuts against the outer wall of the lubricating member 30 and the groove wall of the limiting groove 211 respectively. In this way, the first seal can ensure sealing between the outer wall of the lubricating member 30 and the limiting groove 211 to prevent lubricating oil from flowing out there. Exemplarily, the first seal may be made of non-metallic material. For example, the first seal may be made of plastic.

[0082] In some embodiments, the reducer 200 may further include a second seal. The lubricating member 30 may be sleeved on the outer wall of the second seal. The second seal abuts against the inner wall of the lubricating member 30 and the groove wall of the limiting groove 211 respectively. In this way, the inner wall of the lubricating member 30 and the limiting groove 211 can be sealed by the second seal to prevent the lubricating oil from flowing out there. Exemplarily, the second seal may also be made of non-metallic material. For example, the second seal may be made of plastic.

[0083] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto, and any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A reducer, characterized in that: include: A housing, wherein the housing is formed with a mounting cavity; A planetary gear reduction mechanism is arranged in the installation cavity; as well as, A lubricating member is arranged in the installation cavity and is arranged opposite to the planetary gear reduction mechanism; The surface of the lubricating component close to the planetary gear reduction mechanism is provided with a plurality of lubricating holes, and the plurality of lubricating holes are arranged at intervals along the circumferential direction; the lubricating component is also provided with a connecting channel connected with the plurality of lubricating holes.

2. The reducer according to claim 1, characterized in that: The housing comprises: a bottom wall, the bottom wall being located at a side of the lubricating member away from the planetary gear reduction mechanism; and A side wall is located on a side of the bottom wall close to the lubricating member and is arranged around the lubricating member and the periphery of the planetary gear reduction mechanism; Wherein, a surface of the bottom wall close to the lubricating member has a limiting groove; the lubricating member is arranged in the limiting groove and is clamped with the bottom wall.

3. The reducer according to claim 2, characterized in that: The lubricating element is annular; and the limiting groove is an annular groove.

4. The reducer according to claim 3, characterized in that: The surface of the lubricating member away from the planetary gear reduction mechanism has the communicating channel; the communicating channel is annular; A circulation channel is provided on the bottom wall; one end of the circulation channel is communicated with the limiting groove, and the other end forms an opening on the bottom wall.

5. The reducer according to claim 4, characterized in that: The diameter of the lubrication hole is smaller than the radial dimension of the communication channel along the lubrication member.

6. The reducer according to claim 3, characterized in that: The inner wall of the lubricating member and the outer wall of the lubricating member both abut against the groove wall of the limiting groove, so that the lubricating member is clamped in the limiting groove.

7. The reducer according to claim 3, characterized in that: The reducer also includes: A first sealing member, wherein the first sealing member is sleeved on the outer wall of the lubricating member, and the first sealing member abuts against the outer wall of the lubricating member and the groove wall of the limiting groove respectively; and / or, The second sealing member is sleeved on the outer wall of the second sealing member, and the second sealing member abuts against the inner wall of the lubricating member and the groove wall of the limiting groove respectively.

8. The reducer according to claim 1, characterized in that: The planetary gear reduction mechanism comprises: a first planet carrier; and, A plurality of first planetary gears, arranged on the first planetary carrier at intervals along the circumference of the first planetary carrier; Wherein, the plurality of lubrication holes are used to be arranged opposite to the plurality of first planetary gears during the rotation of the plurality of first planetary gears.

9. The reducer according to claim 8, characterized in that: The axis of the lubrication hole is parallel to the rotation axis of the first planetary gear.

10. The reducer according to claim 8, characterized in that: The number of the lubrication holes is greater than the number of the first planetary gears; and / or the plurality of lubrication holes are evenly distributed along the circumference of the lubricating member.

11. A drive system, characterized in that: A reducer comprising the reducer described in any one of claims 1-10.

12. A vehicle, characterized in that: Comprising the drive system of claim 11.

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