Power generation and driving integrated device with active lubricating system

Abstract

The invention discloses a power generation and driving integrated device with an active lubricating system. The power generation and driving integrated device comprises a motor shell, a motor, a planetary gear mechanism, a transmission gear set, a filter, an electronic pump, a flywheel shell and a motor shell cover plate. The motor shell comprises a motor cavity for accommodating the motor and a gear cavity for accommodating the planetary gear mechanism and the transmission gear set, the flywheel shell seals the gear cavity, and the motor shell cover plate seals the motor cavity; the bottom of the gear cavity is divided into an oil suction cavity through a motor shell oil separation rib, an oil return groove is formed in the connecting position of the motor shell oil separation rib and the bottom of the gear cavity, the filter is contained in the oil suction cavity, the electronic pump partially stretches into the oil suction cavity and is connected with the filter, and an oil outlet of the filter is communicated with an oil inlet of the electronic pump. According to the invention, stable active lubrication of parts with lubrication and cooling requirements, such as shafts, gears, bearings, motors and the like, is realized. Meanwhile, gear oil stirring can be reduced, and the speed reducer efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle-related technologies, and in particular to an integrated power generation and driving device with an active lubrication system. Background Art

[0002] Some existing hybrid power systems are driven by a combination of an engine and an electric motor. Specifically, the engine drives the generator to generate electricity, and then the generator supplies power to the drive motor to drive the vehicle.

[0003] However, the hybrid drive device of the engine and the motor requires the coordination of multiple gears, which is prone to gear oil stirring, affecting the efficiency of the reducer. In addition, since the vehicle will tilt during driving, the existing technology has poor oil absorption effect under tilting conditions. At the same time, under the trend of high-speed motors, the existing technology also has greater adjustments to the lubrication of bearings and tooth surfaces. Summary of the invention

[0004] Based on this, it is necessary to provide an integrated power generation and drive device with an active lubrication system to address the technical problem that gear oil stirring is prone to occur in the prior art engine and motor hybrid drive device.

[0005] The present invention provides a power generation and driving integrated device with an active lubrication system, comprising: a motor housing, a motor, a planetary gear mechanism, a transmission gear set, a filter, an electronic pump, a flywheel housing, and a motor housing cover plate;

[0006] The motor housing comprises a motor cavity for accommodating the motor and a gear cavity for accommodating the planetary gear mechanism and the transmission gear set, the flywheel housing encloses the gear cavity, and the motor housing cover plate encloses the motor cavity;

[0007] The bottom of the gear chamber is separated into an oil suction chamber by an oil-separating rib of the motor housing. An oil return groove is provided at the connection between the oil-separating rib of the motor housing and the bottom of the gear chamber. The filter is accommodated in the oil suction chamber. The electronic pump partially extends into the oil suction chamber and is connected to the filter. The oil outlet of the filter is connected to the oil inlet of the electronic pump. The oil outlet of the electronic pump is connected to an oil channel. The oil channel is integrated in the motor housing, the flywheel housing and the motor housing cover plate. The oil channel is connected to a plurality of oil injection holes.

[0008] Furthermore, the oil suction port of the filter is located at the bottom of the oil suction cavity.

[0009] Further, the planetary gear mechanism includes a sun gear, a planet carrier, a ring gear and a plurality of planetary gears, the plurality of planetary gears are mounted on the planet carrier, and the planetary gears are respectively meshed with the sun gear and the inner ring of the ring gear, the planet carrier is used to be connected to the engine, the motor includes a stator assembly and a rotor assembly accommodated in the stator assembly, and the rotor assembly is connected to the sun gear;

[0010] A motor shaft bearing is sleeved on the rotor shaft of the rotor assembly, a ring gear bearing is sleeved on the ring gear, a first sun gear thrust bearing is arranged between the sun gear and the motor housing, the oil spray hole comprises a bearing oil spray hole located above the motor shaft bearing, the ring gear bearing and the sun gear bearing, and a motor bearing oil passage connected to the motor shaft bearing, a ring gear bearing oil passage connected to the ring gear bearing, and a sun gear thrust bearing oil passage connected to the first sun gear thrust bearing are respectively arranged below the bearing oil spray hole.

[0011] Furthermore, the motor bearing oil passage, the ring gear bearing oil passage and the sun gear thrust bearing oil passage are trumpet-shaped oil passages.

[0012] Furthermore, the oil channel includes: a first shell oil outlet channel and a second shell oil outlet channel integrated in the motor shell, one end of the first shell oil outlet channel is connected to the oil outlet port of the electronic pump, and the other end is connected to one end of the second shell oil outlet channel, and the other end of the second shell oil outlet channel is connected to an oil cooler fixed on the motor shell.

[0013] Furthermore, the motor includes a stator assembly and a rotor assembly accommodated in the stator assembly;

[0014] The oil passage also includes: an oil cooler oil outlet passage, a stator oil inlet passage, a first rotor oil inlet passage, and a stator oil ring integrated in the motor housing;

[0015] The oil passage also includes: a second rotor oil inlet passage integrated in the motor housing cover;

[0016] One end of the oil cooler oil outlet passage is connected to the oil cooler oil outlet, and the other end is respectively connected to the stator oil inlet passage and the first rotor oil inlet passage, the stator oil inlet passage is connected to the stator oil ring surrounding the stator assembly, the first rotor oil inlet passage is connected to one end of the second rotor oil inlet passage, and the other end of the second rotor oil inlet passage is connected to the oil chamber in the rotor shaft of the rotor assembly.

[0017] Furthermore, a diameter of the stator oil inlet passage is greater than a diameter of the first rotor oil inlet passage.

[0018] Furthermore, the planetary carrier includes a planetary carrier center shaft, one end of the planetary carrier center shaft is inserted into the oil chamber in the rotor shaft, and the other end is used to connect to the engine. The planetary carrier center shaft is provided with a planetary carrier center shaft oil chamber connected to the rotor shaft oil chamber. The planetary carrier center shaft is also provided with a radial first planetary carrier center shaft oil-flinging hole connected to the oil chamber in the planetary carrier center shaft. The planetary gear mechanism includes a sun gear, and a radial sun gear oil-flinging hole is provided on the sun gear. The first planetary carrier center shaft oil-flinging hole is connected to the sun gear oil-flinging hole during rotation.

[0019] Furthermore, the planetary carrier also includes a hollow pin shaft of a planetary gear, the planetary gear is sleeved on the hollow pin shaft of the planetary gear, the hollow pin shaft of the planetary gear includes a hollow shaft cavity and a hollow pin shaft oil-spinning hole connected to the hollow shaft cavity, the axial inlet of the hollow pin shaft of the planetary gear is provided with a planetary carrier oil guide plate located on the oil leakage channel diameter of the sun gear oil-spinning hole, and the planetary carrier oil guide plate faces the axial inlet of the hollow pin shaft of the planetary gear to introduce oil into the hollow pin shaft of the planetary gear.

[0020] Furthermore, the planetary carrier also includes a second planetary carrier center shaft oil-swinging hole which is radial and connected to the oil chamber in the planetary carrier center shaft. A second sun gear thrust bearing is sleeved on the planetary carrier center shaft. The second sun gear thrust bearing is located between the sun gear and the planetary carrier center shaft, and the second sun gear thrust bearing is located on the oil leakage path of the second planetary carrier center shaft oil-swinging hole.

[0021] Further, the oil passage comprises: a first housing oil outlet passage of the flywheel housing, a second housing oil outlet passage of the flywheel housing, a third housing oil outlet passage of the flywheel housing and a fourth housing oil outlet passage of the flywheel housing integrated in the flywheel housing;

[0022] The oil outlet of the electronic pump is respectively connected to the oil outlet passage of the first shell of the flywheel housing and the oil outlet passage of the second shell of the flywheel housing, and the oil outlet passage of the second shell of the flywheel housing is sequentially connected to the oil outlet passage of the third shell of the flywheel housing and the oil outlet passage of the fourth shell of the flywheel housing;

[0023] The oil outlet passage of the first shell of the flywheel housing is integrated on the inner wall of the flywheel housing, and the oil outlet passage of the third shell of the flywheel housing is integrated on the outer wall of the flywheel housing.

[0024] Furthermore, it also includes a T-shaped oil spray pipe fixed to the flywheel housing and connected to the oil outlet passage of the first shell of the flywheel housing, the T-shaped oil spray pipe includes a first section and a second section of the nozzle which are vertically connected to each other, the first section of the nozzle is connected to the flywheel housing, and the inner cavity is connected to the oil outlet passage of the first shell of the flywheel housing, the planetary carrier includes a planetary carrier center axis, the inner cavity of the second section of the nozzle is connected to the first section of the nozzle, and the second section of the nozzle extends to one side of the planetary carrier center axis, and the second section of the nozzle is provided with a planetary carrier center shaft bearing lubrication injection hole facing the planetary carrier center shaft bearing and a ring gear bearing lubrication injection hole facing the ring gear bearing.

[0025] Furthermore, the transmission gear set includes a driving gear, a driven gear and a gear shaft, the driving gear is connected to the gear shaft, a driven gear is arranged on the gear shaft, the driving gear is meshed with the outer ring of the gear ring, the driven gear is used to connect with the wheel of the vehicle, a bearing chamber is provided on the flywheel housing, the gear shaft passes through the bearing chamber, a gear bearing is sleeved on the gear shaft, a countershaft tooth surface lubrication oil injection hole facing the gear shaft tooth surface is provided on the first section of the nozzle, and a countershaft bearing lubrication oil outlet hole connected to the first housing oil outlet passage of the flywheel housing and facing the gear bearing is provided in the bearing chamber. .

[0026] Furthermore, it also includes a differential meshing with the transmission gear set, a differential cavity is opened on the flywheel housing, the differential is partially accommodated in the differential cavity, a differential tooth surface lubrication spray hole facing the differential tooth surface is opened on the first injection section, and the differential cavity is also provided with radial oil seal lubrication spray holes connected to the fourth shell oil outlet channel of the flywheel housing, electromagnetic clutch bearing lubrication spray holes, differential right bearing lubrication spray holes and differential shaft lubrication spray holes.

[0027] Furthermore, it also includes a first differential cavity external oil spray hole connected to the oil outlet passage of the first shell of the flywheel housing and a second differential cavity external oil spray hole connected to the oil outlet passage of the fourth shell of the flywheel housing, the first differential cavity external oil spray hole and the second differential cavity external oil spray hole are respectively facing the differential, and the angle between the first differential cavity external oil spray hole and the second differential cavity external oil spray hole is 90°.

[0028] The present invention achieves stable active lubrication of components that require lubrication and cooling, such as shafts, gears, bearings, and motors, by providing oil passages integrated in the motor housing, flywheel housing, and motor housing cover. At the same time, an oil suction chamber is separated at the bottom of the gear chamber by the motor housing oil separator rib, and an oil return groove is opened in the oil suction chamber. By designing the motor housing oil separator rib to match the flywheel housing oil separator rib plus the oil return groove, a semi-enclosed oil pan is formed inside the gear chamber as an oil suction chamber without affecting the reflux of lubricating oil in the gear chamber. The present invention can reduce gear oil stirring and improve the efficiency of the reducer. The oil pan helps to separate the gear chamber from the oil suction chamber during oil suction under various tilt conditions, reduce the amount of oil injection, lower the oil level in the gear chamber, reduce gear oil stirring, and improve the efficiency of the reducer. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic structural diagram of a power generation and drive integrated device with an active lubrication system according to an embodiment of the present invention;

[0030] Figure 2 Another embodiment of the present invention is an explosion of a power generation and driving integrated device with an active lubrication system;

[0031] Figure 3a A schematic diagram of a planetary gear mechanism of a power generation and driving integrated device with an active lubrication system with the sun gear disassembled according to another embodiment of the present invention;

[0032] Figure 3b A schematic diagram of a sun gear installed in a planetary gear mechanism of a power generation and driving integrated device with an active lubrication system according to another embodiment of the present invention;

[0033] Figure 3c It is a schematic diagram of a planetary gear mechanism of a power generation and driving integrated device with an active lubrication system installed on a planet carrier according to another embodiment of the present invention;

[0034] Figure 4 This is a partial enlarged view of an oil distribution tank of a power generation and drive integrated device with an active lubrication system according to another embodiment of the present invention;

[0035] Figure 5 A cross-sectional view of an oil suction chamber of an integrated power generation and driving device with an active lubrication system according to another embodiment of the present invention;

[0036] Figure 6 This is a schematic diagram of the connection between an electronic pump and an oil cooler of a power generation and drive integrated device with an active lubrication system according to another embodiment of the present invention;

[0037] Figure 7 A schematic diagram of an oil cooler oil inlet passage and an oil cooler oil outlet passage of a power generation and drive integrated device with an active lubrication system according to another embodiment of the present invention;

[0038] Figure 8 This is a schematic diagram of the connection between an oil cooler oil outlet passage, a stator oil inlet passage, and a first rotor oil inlet passage of a power generation and drive integrated device with an active lubrication system according to another embodiment of the present invention;

[0039] Fig. 9 It is a schematic diagram of the connection between the oil inlet passage of the oil tank, the oil injection passage of the oil tank and the stator oil ring of a power generation and drive integrated device with an active lubrication system according to another embodiment of the present invention;

[0040] Fig.10 This is a schematic diagram of oil inlet to a rotor shaft of a power generation and drive integrated device with an active lubrication system according to another embodiment of the present invention;

[0041] Fig.11 A schematic diagram of oil throwing in a rotor of a power generation and driving integrated device with an active lubrication system according to another embodiment of the present invention;

[0042] Fig.12 This is a schematic diagram of the oil injection holes of a planetary gear mechanism, a bearing chamber, and a differential cavity of a power generation and driving integrated device with an active lubrication system according to another embodiment of the present invention;

[0043] Fig.13 A cross-sectional view of a T-shaped oil injection pipe of a power generation and driving integrated device with an active lubrication system according to another embodiment of the present invention;

[0044] Fig.14 A cross-sectional view of a differential cavity of a power generation and driving integrated device with an active lubrication system according to another embodiment of the present invention;

[0045] Fig.15 This is a schematic diagram of the oil inlet of the differential planetary gear lubrication injection oil passage of a power generation and driving integrated device with an active lubrication system according to another embodiment of the present invention;

[0046] Fig.16 This is a partial enlarged view of the position of the bearing chamber of a power generation and drive integrated device with an active lubrication system according to another embodiment of the present invention;

[0047] Fig.17 This is a partial enlarged view of a differential cavity of a power generation and driving integrated device with an active lubrication system according to another embodiment of the present invention;

[0048] Fig.18 This is a schematic diagram of an oil cooler of an integrated power generation and drive device with an active lubrication system according to another embodiment of the present invention.

[0049] Marking Description

[0050] 1. Motor housing; 101. Motor cavity; 102. Gear cavity; 1021. Oil return groove; 1022. Protruding structure; 103. Oil suction cavity; 1031. Motor housing oil separator; 104. Flywheel housing; 1040. Flywheel housing oil separator; 1041. Flywheel housing first housing oil outlet passage; 1042. Flywheel housing second housing oil outlet passage; 1043. Flywheel housing third housing oil outlet passage; 1044. Flywheel housing fourth housing oil outlet passage; 1045. Oil seal lubrication spray passage; 1046. Electromagnetic clutch bearing lubrication spray passage; 1047. Differential right bearing lubrication spray passage; 1048. Differential shaft internal lubrication spray passage; 1049. Differential planetary gear lubrication spray passage; 105. Motor housing cover; 10 6. Three-phase wiring cavity of the motor; 2. Motor; 21. Stator assembly; 211. Stator oil ring; 22. Rotor assembly; 221. Rotor shaft; 2211. Oil cavity in rotor shaft; 23. Front bearing of motor; 24. Rear bearing of motor; 3. Planetary gear mechanism; 222. Rotor bracket; 223. Rotor core; 31. Sun gear; 311. Oil-slinging hole of sun gear; 312. First sun gear thrust bearing; 313. Second sun gear thrust bearing; 32. Planet carrier; 321. Center shaft of planet carrier; 322. Oil cavity in center shaft of planet carrier; 323. Oil-slinging hole in center shaft of first planet carrier; 324. Hollow pin shaft of planetary gear; 3241. Hollow shaft cavity; 3242. Oil-slinging hole of hollow pin shaft; 325. Oil guide plate of planet carrier; 326, oil-slinging hole of the central shaft of the second planetary carrier; 33, gear ring; 331, right bearing of gear ring; 332, left bearing of gear ring; 34, planetary gear; 4, transmission gear set; 41, driving gear; 42, driven gear; 43, gear shaft; 44, bearing chamber; 441, oil outlet hole for lubrication of countershaft bearing; 5, filter; 51, oil suction port; 6, electronic pump; 7, oil cooler; 701, oil spray hole of bearing; 702, oil passage of motor bearing; 703, oil passage of gear ring bearing; 704, oil passage of sun gear thrust bearing; 705, oil outlet passage of oil cooler; 706, oil inlet passage of stator; 707, oil inlet passage of the first rotor; 708, oil inlet passage of oil cooler; 709, oil baffle; 710, oil guide pipe; 711, oil inlet passage of oil distribution tank; 712, oil tank oil spray channel; 713, second rotor oil inlet channel; 8, T-type oil spray pipe; 81, planet carrier center shaft bearing lubrication oil spray hole; 82, gear ring bearing lubrication oil spray hole; 83, countershaft tooth surface lubrication oil spray hole; 84, differential tooth surface lubrication oil spray hole; 85, first differential cavity outer oil spray hole; 86, second differential cavity outer oil spray hole; 87, clutch lubrication oil spray hole; 9, differential; 90, differential ring gear; 91, differential cavity; 911, oil seal lubrication oil spray hole; 912, electromagnetic clutch bearing lubrication oil spray hole; 913, differential right bearing lubrication oil spray hole; 914, differential shaft inner lubrication oil spray hole; 915, differential left bearing lubrication oil spray hole; 10, clutch; 11, controller; 12, controller;1000, flywheel housing oil inlet hole; 1001, first housing oil outlet passage; 1002, second housing oil outlet passage; 1003, flywheel housing oil inlet passage. ; DETAILED DESCRIPTION

[0051] The specific embodiments of the present invention are further described below in conjunction with the accompanying drawings. The same components are represented by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0052] like Figure 1 and Figure 2 The figure shows a schematic structural diagram of a power generation and driving integrated device with an active lubrication system according to an embodiment of the present invention, comprising: a motor housing 1, a motor 2, a planetary gear mechanism 3, a transmission gear set 4, a filter 5, an electronic pump 6, a flywheel housing 104 and a motor housing cover 105;

[0053] The motor housing 1 includes a motor cavity 101 for accommodating the motor 2 and a gear cavity 102 for accommodating the planetary gear mechanism 3 and the transmission gear set 4. The flywheel housing 104 encloses the gear cavity 102, and the motor housing cover plate 105 encloses the motor cavity 101.

[0054] The bottom of the gear chamber 102 is separated into an oil suction chamber 103 by an oil separator 1031 of the motor housing. An oil return groove 1021 is provided at the connection between the oil separator 1031 of the motor housing and the bottom of the gear chamber 102. The filter 5 is accommodated in the oil suction chamber 103. The electronic pump 6 partially extends into the oil suction chamber 103 and is connected to the filter 5. The oil outlet of the filter 5 is connected to an oil channel. The oil channel is integrated in the motor housing 1, the flywheel housing 104 and the motor housing cover 105. The oil channel is connected to a plurality of oil injection holes.

[0055] Specifically, the planetary gear mechanism 3 includes a sun gear 31, a planet carrier 32, a ring gear 33 and a plurality of planetary gears 34. The plurality of planetary gears 34 are mounted on the planet carrier 32, and the planetary gears 34 are respectively meshed with the inner rings of the sun gear 31 and the ring gear 33. The planet carrier 32 is used to connect to the engine.

[0056] In some embodiments, planet carrier 32 is connected to an engine input shaft of the engine.

[0057] In some embodiments, the planet carrier 32 is connected to the engine as an engine input shaft.

[0058] The motor 2 includes a stator assembly 21 and a rotor assembly 22 accommodated in the stator assembly 21, and the rotor assembly 22 is connected to the sun gear 31;

[0059] The transmission gear set 4 includes a driving gear 41 and a driven gear 42 connected to each other. The driving gear 41 is meshed with the outer ring of the gear ring 33 , and the driven gear 42 is used to be connected to the wheels of the vehicle.

[0060] The planet carrier 32 serves as the engine input shaft and as the power output. The motor 2 includes a stator assembly 21 and a rotor assembly 22. The rotor assembly 22 is connected to the sun gear 31. The power output is achieved through the cooperation of the sun gear 31, the planet carrier 32, the ring gear 33 and a plurality of planetary gears 34. The sun gear 31 meshes with the planetary gears 34 to adjust the speed ratio between the engine and the motor 2. The engine drives the rotor assembly 22 to rotate and generate electricity through the planet carrier 32, or the power of the engine drives the ring gear 33 through the planet carrier 32 to output the driving torque and drive the vehicle.

[0061] The motor housing 1 is divided into a motor cavity 101 and a gear cavity 102 on the left and right sides by a partition. The flywheel housing 104 closes the gear cavity 102 , and the motor housing cover 105 closes the motor cavity 101 .

[0062] On the other hand, the ring gear 33 is connected to the wheels of the vehicle through the transmission gear set 4.

[0063] In some embodiments, the transmission gear set 4 is connected to the wheels via a differential 9 .

[0064] Specifically, the driving gear 41 is coaxial with the driven gear 42, and the driving gear 41 is directly connected or splined to the gear shaft 43. A gear is machined on the gear shaft 43 as the driven gear 42, so that the driven gear 42 rotates together with the driving gear 41.

[0065] The ring gear 33 meshes with the driving gear 41 of the transmission gear set 4, and the driven gear 42 of the transmission gear set 4 is connected to the wheel. Preferably, the differential housing of the differential 9 is bolted to the differential ring gear 90, and the driven gear 42 meshes with the differential ring gear 90 of the differential 9 to drive the differential housing of the differential 9 to rotate. The rotation of the differential housing drives the differential planetary gears in the differential housing to rotate, thereby driving the left and right half-shaft gears meshed with the differential planetary gears to rotate, and driving the left and right wheels connected to the left and right half-shaft gears to rotate.

[0066] The motor housing 1 is divided into a motor chamber 101 and a gear chamber 102 on the left and right sides by a partition. At the bottom of the gear chamber 102, the motor housing oil separator is used to separate the gear chamber from the oil suction chamber, thereby reducing the amount of oil injection, lowering the gear chamber oil level, reducing gear oil stirring, and improving the efficiency of the reducer.

[0067] An oil return groove 1021 is provided at the connection between the motor housing oil separation rib 1031 and the bottom of the gear chamber 102, so that the lubricating fluid in the gear chamber can return to the oil suction chamber.

[0068] A filter 5 is fixed in the oil suction chamber 103, and the oil outlet of the filter 5 is connected to the oil inlet of the electronic pump 6. The oil outlet of the electronic pump 6 is connected to the oil cooler 7 fixed on the motor housing 1 through the oil channel partially or completely integrated in the flywheel housing 104 of the motor housing 1. By using the oil channel integrated with the housing and a simple oil injection pipe structure, an active lubrication solution for all gears, bearings, motors, differentials and other parts is realized, with a high degree of integration.

[0069] In some embodiments, the oil passage includes: a first housing oil outlet passage 1001 and a second housing oil outlet passage 1002 integrated in the motor housing 1, a first housing oil outlet passage 1041 of the flywheel housing, a second housing oil outlet passage 1042 of the flywheel housing, a third housing oil outlet passage 1043 of the flywheel housing, and a fourth housing oil outlet passage 1044 of the flywheel housing integrated in the flywheel housing 104; one end of the first housing oil outlet passage 1001 is connected to the oil outlet of the electronic pump 6, and the other end is connected to one end of the second housing oil outlet passage 1002, and the other end of the second housing oil outlet passage 1002 is connected to the oil cooler 7 fixed on the motor housing 1;

[0070] The oil outlet of the electronic pump 6 is respectively connected to the oil outlet passage 1041 of the first shell of the flywheel housing and the oil outlet passage 1042 of the second shell of the flywheel housing, and the oil outlet passage 1042 of the second shell of the flywheel housing is sequentially connected to the oil outlet passage 1043 of the third shell of the flywheel housing and the oil outlet passage 1044 of the fourth shell of the flywheel housing;

[0071] The first housing oil outlet passage 1041 of the flywheel housing is integrated into the inner wall of the flywheel housing 104 , and the third housing oil outlet passage 1043 of the flywheel housing is integrated into the outer wall of the flywheel housing 104 .

[0072] Multiple oil passages are connected to form an active lubrication system.

[0073] The oil discharged from the electronic pump 6 enters the oil cooler oil inlet passage 708 of the oil cooler 7 through the first housing oil outlet passage 1001 and the second housing oil outlet passage 1002 , and flows out through the oil cooler oil outlet passage 705 .

[0074] At the same time, the motor housing 1 and the flywheel housing 104 are connected to the oil passage through the sealing ring, and the oil suction port and the oil outlet of the electronic pump 6 are connected to the motor housing 1 through the sealing ring. One end of the flywheel housing oil inlet passage 1003 is connected to the electronic pump oil outlet, and the other end of the flywheel housing oil inlet passage 1003 is connected to one end of the flywheel housing second housing oil outlet passage 1042, and is connected to the flywheel housing first housing oil outlet passage 1041 through the flywheel housing oil inlet hole 1000. The other end of the flywheel housing second housing oil outlet passage 1042 is connected to the flywheel housing third housing oil outlet passage 1043 and the flywheel housing fourth housing oil outlet passage 1044 in sequence.

[0075] Among them, the first shell oil outlet channel 1001 is integrated at the bottom of the motor shell 1, one end is connected to the electronic pump 6, the other end extends laterally and is connected to the second shell oil outlet channel 1002, and extends upward to the oil cooler 7 fixed on the upper part of the motor shell 1, and is connected to the oil cooler oil inlet channel 708.

[0076] The present invention achieves stable active lubrication of components that require lubrication and cooling, such as shafts, gears, bearings, and motors, by providing oil passages integrated in the motor housing, flywheel housing, and motor housing cover. At the same time, an oil suction chamber is separated at the bottom of the gear chamber by the motor housing oil separator rib, and an oil return groove is opened in the oil suction chamber. By designing the motor housing oil separator rib to cooperate with the flywheel housing oil separator rib 1040 and the feature of adding the oil return groove, a semi-enclosed oil pan is formed inside the gear chamber as an oil suction chamber, and the lubricating oil reflux in the gear chamber is not affected. The present invention can reduce gear oil stirring and improve the efficiency of the reducer. The oil pan helps to separate the gear chamber from the oil suction chamber during oil suction under various tilt conditions, reduce the amount of oil injection, lower the oil level in the gear chamber, reduce gear oil stirring, and improve the efficiency of the reducer.

[0077] like Figures 1 to 17 , another embodiment of the present invention is a power generation and driving integrated device with an active lubrication system, comprising: a motor housing 1, a motor 2, a planetary gear mechanism 3, a transmission gear set 4, a filter 5, an electronic pump 6, a flywheel housing 104, a motor housing cover 105 and an oil cooler 7;

[0078] The motor housing 1 includes a motor cavity 101 for accommodating the motor 2 and a gear cavity 102 for accommodating the planetary gear mechanism 3 and the transmission gear set 4. The flywheel housing 104 encloses the gear cavity 102, and the motor housing cover plate 105 encloses the motor cavity 101.

[0079] The bottom of the gear chamber 102 is separated into an oil suction chamber 103 by an oil separation rib 1031 of the motor housing, and an oil return groove 1021 is provided at the connection between the oil separation rib 1031 of the motor housing and the bottom of the gear chamber 102, the filter 5 is accommodated in the oil suction chamber 103, the electronic pump 6 partially extends into the oil suction chamber 103 and is connected to the filter 5, the oil outlet of the filter 5 is communicated with the oil inlet of the electronic pump 6, the oil outlet of the electronic pump 6 is communicated with the oil channel through the oil channel partially or completely integrated in the flywheel housing 104 of the motor housing 1, the oil channel is integrated in the motor housing 1, the flywheel housing 104 and the motor housing cover 105, the oil channel is communicated with a plurality of oil injection holes, and the oil suction port 51 of the filter 5 is located at the bottom of the oil suction chamber 103;

[0080] The planetary gear mechanism 3 includes a sun gear 31, a planet carrier 32, a ring gear 33, and a plurality of planetary gears 34. The plurality of planetary gears 34 are mounted on the planet carrier 32, and the planetary gears 34 are respectively meshed with the sun gear 31 and the inner ring of the ring gear 33. The planet carrier 32 is used to be connected to the engine input shaft of the engine. The motor 2 includes a stator assembly 21 and a rotor assembly 22 accommodated in the stator assembly 21, and the rotor assembly 22 is connected to the sun gear 31.

[0081] The rotor shaft 221 of the rotor assembly 22 is sleeved with a motor shaft bearing, the ring gear 33 is sleeved with a ring gear bearing, a first sun gear thrust bearing 312 is provided between the sun gear 31 and the motor housing 1, the oil spray hole includes a bearing oil spray hole 701 located above the motor shaft bearing, the ring gear bearing and the sun gear bearing, and a motor bearing oil passage 702 connected to the motor shaft bearing, a ring gear bearing oil passage 703 connected to the ring gear bearing, and a sun gear thrust bearing oil passage 704 connected to the first sun gear thrust bearing 312 are respectively provided below the bearing oil spray hole 701, and the motor bearing oil passage 702, the ring gear bearing oil passage 703 and the sun gear thrust bearing oil passage 704 are trumpet-shaped oil passages;

[0082] The oil passage comprises: a first housing oil outlet passage 1001 and a second housing oil outlet passage 1002 integrated in the motor housing 1, one end of the first housing oil outlet passage 1001 is communicated with the oil outlet of the electronic pump 6, and the other end is communicated with one end of the second housing oil outlet passage 1002, and the other end of the second housing oil outlet passage 1002 is communicated with the oil cooler 7 fixed on the motor housing 1;

[0083] The oil passage also includes: an oil cooler oil outlet passage 705, a stator oil inlet passage 706, a first rotor oil inlet passage 707 and a stator oil ring 211 integrated in the motor housing 1;

[0084] The oil passage also includes: a second rotor oil inlet passage 713 integrated in the motor housing cover 105;

[0085] One end of the oil cooler oil outlet passage 705 is communicated with the oil outlet of the oil cooler 7, and the other end is respectively communicated with the stator oil inlet passage 706 and the first rotor oil inlet passage 707. The stator oil inlet passage 706 is communicated with the stator oil ring 211 surrounding the stator assembly 21. The first rotor oil inlet passage 707 is communicated with one end of the second rotor oil inlet passage 713. The other end of the second rotor oil inlet passage 713 is communicated with the oil cavity 2211 in the rotor shaft of the rotor assembly 22. The diameter of the stator oil inlet passage 706 is greater than the diameter of the first rotor oil inlet passage 707.

[0086] The planet carrier 32 includes a planet carrier center shaft 321, one end of the planet carrier center shaft 321 is inserted into the rotor shaft inner oil chamber 2211, and the other end is used to connect with the engine. The planet carrier center shaft 321 is provided with a planet carrier center shaft inner oil chamber 322 connected with the rotor shaft inner oil chamber 2211, and the planet carrier center shaft is also provided with a radial first planet carrier center shaft oil-slinging hole 323 connected with the planet carrier center shaft inner oil chamber 322, and the sun gear 31 is provided with a radial sun gear oil-slinging hole 311, and the first planet carrier center shaft oil-slinging hole 323 is connected with the sun gear oil-slinging hole 311 during rotation;

[0087] The planet carrier 32 also includes a planet gear hollow pin shaft 324, the planet gear 34 is sleeved on the planet gear hollow pin shaft 324, the planet gear hollow pin shaft 324 includes a hollow shaft cavity 3241 and a hollow pin shaft oil-slinging hole 3242 communicating with the hollow shaft cavity 3241, the axis center entrance of the planet gear hollow pin shaft 324 is provided with a planet carrier oil guide plate 325 located on the oil drain path of the sun gear oil-slinging hole 311, the planet carrier oil guide plate 325 faces the axis center entrance of the planet gear hollow pin shaft 324, and introduces oil into the planet gear hollow pin shaft 324;

[0088] The planet carrier 32 also includes a second planet carrier central shaft oil-slinging hole 326 which is radially connected to the oil chamber 322 in the central shaft of the planet carrier. A second sun gear thrust bearing 313 is sleeved on the central shaft 321 of the planet carrier. The second sun gear thrust bearing 313 is located between the sun gear 31 and the central shaft 321 of the planet carrier, and the second sun gear thrust bearing 313 is located on the oil drain path of the second planet carrier central shaft oil-slinging hole 326.

[0089] The oil passages include: a first housing oil outlet passage 1041 of the flywheel housing, a second housing oil outlet passage 1042 of the flywheel housing, a third housing oil outlet passage 1043 of the flywheel housing, and a fourth housing oil outlet passage 1044 of the flywheel housing, which are integrated in the flywheel housing 104;

[0090] The oil outlet of the electronic pump 6 is respectively connected to the oil outlet passage 1041 of the first shell of the flywheel housing and the oil outlet passage 1042 of the second shell of the flywheel housing, and the oil outlet passage 1042 of the second shell of the flywheel housing is sequentially connected to the oil outlet passage 1043 of the third shell of the flywheel housing and the oil outlet passage 1044 of the fourth shell of the flywheel housing;

[0091] The first housing oil outlet passage 1041 of the flywheel housing is integrated into the inner wall of the flywheel housing 104, and the third housing oil outlet passage 1043 of the flywheel housing is integrated into the outer wall of the flywheel housing 104;

[0092] It also includes a T-shaped oil injection pipe 8 fixed to the flywheel housing 104 and connected to the oil outlet passage 1041 of the first housing of the flywheel housing, the T-shaped oil injection pipe 8 includes a first section and a second section of the nozzle that are vertically connected to each other, the first section of the nozzle is connected to the flywheel housing 104, and the inner cavity is connected to the oil outlet passage 1041 of the first housing of the flywheel housing, the planetary carrier 32 includes a planetary carrier central axis 321, the inner cavity of the second section of the nozzle is connected to the first section of the nozzle, and the second section of the nozzle extends to one side of the planetary carrier central axis 321, and the second section of the nozzle is provided with a planetary carrier central axis bearing lubricating oil injection hole 81 facing the planetary carrier central axis bearing and a ring gear bearing lubricating oil injection hole 82 facing the ring gear bearing;

[0093] The transmission gear set 4 includes a driving gear 41, a driven gear 42 and a gear shaft 43. The driving gear 41 is connected to the gear shaft 43. The driven gear 42 is arranged on the gear shaft 43. The driving gear 41 meshes with the outer ring of the gear ring 33. The driven gear 42 is used to connect with the wheel of the vehicle. The flywheel housing 104 is provided with a bearing chamber 44. The gear shaft 43 passes through the bearing chamber 44. The gear shaft 43 is sleeved with a gear bearing. The first section of the nozzle is provided with a countershaft tooth surface lubrication injection hole 83 facing the tooth surface of the gear shaft 43. The bearing chamber 44 is provided with a countershaft bearing lubrication oil outlet hole 441 connected to the first housing oil outlet passage 1041 of the flywheel housing and facing the gear bearing. ;

[0094] It also includes a differential 9 meshing with the transmission gear set 4, a differential cavity 91 is provided on the motor housing 1, and the differential 9 is partially accommodated in the differential cavity 91, and a differential tooth surface lubrication spray hole 84 facing the tooth surface of the differential 9 is provided on the first section of the nozzle, and an oil seal lubrication spray hole 911, an electromagnetic clutch bearing lubrication spray hole 912, a differential right bearing lubrication spray hole 913, and a differential shaft inner lubrication spray hole 914 are also provided in the differential cavity 91 in a radial direction and connected to the fourth housing oil outlet passage 1044 of the flywheel housing;

[0095] It also includes a first differential cavity external oil injection hole 85 connected to the first shell oil outlet passage 1041 of the flywheel housing and a second differential cavity external oil injection hole 86 connected to the fourth shell oil outlet passage 1044 of the flywheel housing. The first differential cavity external oil injection hole 85 and the second differential cavity external oil injection hole 86 are respectively oriented toward the differential 9, and the angle between the first differential cavity external oil injection hole 85 and the second differential cavity external oil injection hole 86 is 90°.

[0096] Specifically, by designing the oil-separating rib 1031 of the motor housing in conjunction with the features of the oil-separating rib 1040 of the flywheel housing and the oil return groove 1021, a semi-closed oil pan is formed inside the gear chamber 102 as the oil suction chamber 103 without affecting the reflux of the lubricating oil in the gear chamber 102, thereby reducing gear oil stirring and improving the efficiency of the reducer. The oil pan is also more conducive to oil suction under various tilting conditions.

[0097] The oil suction port 51 of the filter 5 is located at the bottom of the oil suction chamber 103, specifically, the oil suction port 51 is at the lowest point under the premise of being able to suck oil. The oil suction port of this embodiment is designed at the lowest point, which is conducive to oil suction under various tilting conditions.

[0098] In this embodiment, an oil suction chamber is separated at the bottom of the gear chamber by the oil separator of the motor housing, and an oil return groove is opened in the oil suction chamber. By designing the oil separator of the motor housing in conjunction with the oil separator of the flywheel housing and the oil return groove, a semi-enclosed oil pan is formed inside the gear chamber as an oil suction chamber without affecting the reflux of lubricating oil in the gear chamber. On the one hand, it can reduce gear oil stirring and improve the efficiency of the reducer. On the other hand, the oil pan is also more helpful for oil suction under various tilting conditions to separate the gear chamber from the oil suction chamber, reduce the amount of oil injection, lower the oil level in the gear chamber, reduce gear oil stirring, and improve the efficiency of the reducer. The oil suction port is designed at the lowest point, which is conducive to oil suction under various tilting conditions.

[0099] In some embodiments, the oil suction port 51 is located in the center of the bottom of the gear cavity 102 .

[0100] The oil suction port of this embodiment is designed at the lowest point and in the middle of the bottom of the gear cavity, which is more conducive to oil suction under various tilting conditions.

[0101] like Figure 2 , Figure 3a , Figure 3b and Figure 3c As shown, the planetary gear mechanism 3 includes a sun gear 31, a planet carrier 32, a ring gear 33 and a plurality of planetary gears 34, wherein the plurality of planetary gears 34 are mounted on the planet carrier 32, and the planetary gears 34 are respectively meshed with the inner rings of the sun gear 31 and the ring gear 33, and the planet carrier 32 is used to be connected to the engine input shaft of the engine, and the motor 2 includes a stator assembly 21 and a rotor assembly 22 accommodated in the stator assembly 21, and the rotor assembly 22 is connected to the sun gear 31;

[0102] The rotor shaft 221 of the rotor assembly 22 is sleeved with a motor shaft bearing, the ring gear 33 is sleeved with a ring gear bearing, and a first sun gear thrust bearing is fixed between the sun gear 31 and the motor housing 1 .

[0103] In some embodiments, a controller 12 is further provided above the motor housing 1, and the top of the gear chamber 102 is separated into a motor three-phase wire connection chamber 106 by an oil separator. The motor three-phase wire connection socket is electrically connected to the motor 2 and accommodated in the motor three-phase wire connection chamber 106. The motor three-phase wire connection chamber 106 is used as a separate connection chamber, which can prevent the bolts from falling off during assembly, and can also remove the inverter box without opening the gear box when repairing the inverter after sales.

[0104] like Figure 4 As shown, the oil injection hole includes a bearing oil injection hole 701 located above the motor shaft bearing, the ring gear bearing and the sun gear bearing, and an oil distribution groove is arranged below the bearing oil injection hole 701. The oil distribution groove includes a motor bearing oil passage 702 connected to the motor shaft bearing, a ring gear bearing oil passage 703 connected to the ring gear bearing, and a sun gear thrust bearing oil passage 704 connected to the first sun gear thrust bearing.

[0105] Specifically, the motor shaft bearing includes a motor front bearing 23 and a motor rear bearing 24. The rotor assembly 22 includes a rotor shaft 221, a rotor bracket 222 and a rotor core 223. The rotor bracket 222 supports the rotor shaft 221. One end of the rotor shaft 221 is connected to the sun gear 31, and the other end is connected to the rotor core 223. The motor front bearing 23 and the motor rear bearing 24 are respectively mounted on the rotor shaft 221.

[0106] In some embodiments, the ring gear bearings include a ring gear right bearing 331 and a ring gear left bearing 332 .

[0107] The motor bearing oil passage 702 is connected to the motor front bearing 23 , and the gear ring bearing oil passage 703 is connected to the gear ring left bearing 332 .

[0108] The three oil distribution grooves divide the oil from the upper bearing oil injection hole 701 into three areas for lubrication, respectively lubricating the motor front bearing 23, the left ring gear bearing 332 and the first sun gear thrust bearing 312 between the motor housing 1 and the sun gear 31.

[0109] In some embodiments, an oil baffle 709 fixedly connected to the motor housing 1 is added above the motor bearing oil passage 702, the ring gear bearing oil passage 703 and the sun gear thrust bearing oil passage 704 to cope with the roll condition.

[0110] This embodiment achieves stable lubrication of three bearings by designing an oil distribution groove and adopting a simple structure.

[0111] like Fig.18 The oil cooler 7 is shown. Figure 5 , Figure 6 and Figure 7 As shown, the oil passage includes: a first housing oil outlet passage 1001 and a second housing oil outlet passage 1002 integrated in the motor housing 1, one end of the first housing oil outlet passage 1001 is connected to the oil outlet of the electronic pump 6, and the other end is connected to one end of the second housing oil outlet passage 1002, and the other end of the second housing oil outlet passage 1002 is connected to the oil cooler 7 fixed on the motor housing 1. The oil discharged from the electronic pump 6 passes through the first housing oil outlet passage 1001 and the second housing oil outlet passage 1002, that is, enters the oil cooler oil inlet passage 708 of the oil cooler 7, and flows out through the oil cooler oil outlet passage 705.

[0112] Among them, the first shell oil outlet channel 1001 is integrated at the bottom of the motor shell 1, one end is connected to the electronic pump 6, the other end extends laterally and is connected to the second shell oil outlet channel 1002, and extends upward to the oil cooler 7 fixed on the upper part of the motor shell 1, and is connected to the oil cooler oil inlet channel 708.

[0113] In some embodiments, the electronic pump 6 is an electronic oil pump.

[0114] This embodiment uses the oil passage integrated with the housing and a simple oil injection pipe structure to realize the active lubrication solution of all gears, bearings, motors, differentials and other parts, with high integration. At the same time, in this embodiment, the oil from the electronic pump passes through the first housing oil outlet passage and the second housing oil outlet passage and enters the oil cooler oil inlet passage, which has a short path and is conducive to reducing oil resistance.

[0115] like Figure 8 and Fig. 9As shown, the oil passage also includes: an oil cooler oil outlet passage 705, a stator oil inlet passage 706, a first rotor oil inlet passage 707 and a stator oil ring 211 integrated in the motor housing 1, and a second rotor oil inlet passage 713 integrated in the motor housing cover 105, the stator oil inlet passage 706 is connected to the stator oil ring 211 surrounding the stator assembly 21, and the stator oil ring 211 is a processing feature on the motor housing 1. The first rotor oil inlet passage 707 is connected to one end of the second rotor oil inlet passage 713, and the other end of the second rotor oil inlet passage 713 is connected to the rotor shaft inner oil cavity 2211 of the rotor shaft 221 of the rotor assembly 22 through the oil guide pipe 710.

[0116] The stator oil inlet passage 706 is a main passage, the first rotor oil inlet passage 707 is a branch passage, and the diameter of the stator oil inlet passage 706 is greater than the diameter of the first rotor oil inlet passage 707 .

[0117] In some embodiments, the oil passage also includes an oil tank oil inlet passage 711 and an oil tank oil injection passage 712 which are integrated in and connected to the motor housing 1, wherein the oil tank oil inlet passage 711 is connected to the stator oil ring 211, and the oil tank oil injection passage 712 is connected to the bearing oil injection hole 701.

[0118] The oil flows out from the stator oil ring 211 , enters the oil distribution groove oil injection passage 712 through the oil distribution groove oil inlet passage 711 , and is sprayed out from the bearing oil injection hole 701 .

[0119] The oil outlet passage of the oil cooler in this embodiment is directly connected to the stator oil ring, which simplifies processing and reduces oil resistance. The aperture of the first rotor oil inlet passage is designed through simulation, and the stator-rotor oil distribution ratio is reasonably allocated to maximize lubrication efficiency.

[0120] like Fig.10 and Fig.11 As shown, the planet carrier 32 includes a planet carrier center shaft 321, one end of the planet carrier center shaft 321 is inserted into the oil chamber 2211 in the rotor shaft, and the other end is used to connect with the engine. A planet carrier center shaft inner oil chamber 322 connected to the rotor shaft inner oil chamber 2211 is provided in the planet carrier center shaft 321, and a first planet carrier center shaft oil-swinging hole 323 which is radial and connected to the planet carrier center shaft inner oil chamber 322 is also provided on the planet carrier center shaft. A radial sun gear oil-swinging hole 311 begins to be provided on the sun gear 31, and the first planet carrier center shaft oil-swinging hole 323 is connected to the sun gear oil-swinging hole 311 during rotation.

[0121] Specifically, the first planet carrier central shaft oil-swing hole 323 receives oil from the rotor shaft inner oil cavity 2211 through the planet carrier central shaft inner oil cavity 322 , and the planet carrier central shaft 321 rotates to swing the oil out, and then swings out through the sun gear oil-swing hole 311 .

[0122] The planet carrier 32 also includes a planet gear hollow pin shaft 324, and the planet gear 34 is sleeved on the planet gear hollow pin shaft 324. The planet gear hollow pin shaft 324 is a hollow shaft. The axial inlet of the planet gear hollow pin shaft 324 is provided with a planet carrier oil guide plate 325 located on the oil leakage path of the sun gear oil throwing hole 311. The planet carrier oil guide plate 325 faces the axial inlet of the planet gear hollow pin shaft 324 to introduce oil into the planet gear hollow pin shaft 324.

[0123] Specifically, the oil thrown out from the sun gear oil-flinging hole 311 is thrown to the planetary carrier oil guide plate 325, and the planetary carrier oil guide plate 325 introduces the oil into the hollow pin shaft 324 of the planetary gear, and guides the oil to the planetary gear needle bearing of the planetary gear 34 through the hollow pin shaft oil-flinging hole 3242.

[0124] The planet carrier 32 also includes a second planet carrier center shaft oil-swinging hole 326 which is radial and connected to the oil chamber 322 in the center shaft of the planet carrier. A second sun gear thrust bearing 313 is sleeved on the center shaft 321 of the planet carrier. The second sun gear thrust bearing 313 is located between the sun gear 31 and the center shaft 321 of the planet carrier, and the second sun gear thrust bearing 313 is located on the oil leakage path of the second planet carrier center shaft oil-swinging hole 326.

[0125] Specifically, the oil leakage path diameter is the path that the oil passes through after being thrown out from the oil throwing hole. The oil throwing hole 326 of the second planetary carrier center shaft enters the oil cavity 2211 in the rotor shaft through the oil cavity 322 in the planetary carrier center shaft, and the planetary carrier center shaft 321 rotates, mainly lubricating the second sun gear thrust bearing 313 between the planetary carrier center shaft 321 and the sun gear 31.

[0126] In this embodiment, the central shaft of the planetary carrier is lubricated by oil separation through the first central shaft oil-slinging hole of the planetary carrier and the second central shaft oil-slinging hole of the planetary carrier, wherein the front end is the central shaft oil-slinging hole of the first planetary carrier, which has a large oil demand, and the rear end is the central shaft oil-slinging hole of the second planetary carrier, which has a small oil demand and a reasonable oil distribution. After the oil is discharged from the central shaft oil-slinging hole of the first planetary carrier, it passes through the oil-slinging hole of the sun gear, enters the oil guide plate of the planetary carrier and is introduced into the planetary gear. The path is simple, the structure is simple, and the lubrication of the planetary gear bearing can be realized. The central shaft of the second planetary carrier oil-slinging hole throws the oil out from the central shaft of the planetary carrier to lubricate the first sun gear thrust bearing between the central shaft of the planetary carrier and the sun gear.

[0127] like Figures 12 to 17 As shown, the oil passage includes: a first housing oil outlet passage 1041 of the flywheel housing, a second housing oil outlet passage 1042 of the flywheel housing, a third housing oil outlet passage 1043 of the flywheel housing, and a fourth housing oil outlet passage 1044 of the flywheel housing, which are integrated in the flywheel housing 104;

[0128] The oil outlet of the electronic pump 6 is respectively connected to the oil outlet passage 1041 of the first shell of the flywheel housing and the oil outlet passage 1042 of the second shell of the flywheel housing, and the oil outlet passage 1042 of the second shell of the flywheel housing is sequentially connected to the oil outlet passage 1043 of the third shell of the flywheel housing and the oil outlet passage 1044 of the fourth shell of the flywheel housing;

[0129] The first housing oil outlet passage 1041 of the flywheel housing is integrated into the inner wall of the flywheel housing 104, and the third housing oil outlet passage 1043 of the flywheel housing is integrated into the outer wall of the flywheel housing 104;

[0130] It also includes a T-shaped fuel injection pipe 8 fixed to the flywheel housing 104 and connected to the oil outlet passage 1041 of the first housing of the flywheel housing, the T-shaped fuel injection pipe 8 includes a first nozzle section and a second nozzle section vertically connected to each other, the first nozzle section is connected to the flywheel housing 104, and the inner cavity is connected to the oil outlet passage 1041 of the first housing of the flywheel housing, the planetary carrier 32 includes a planetary carrier center axis 321, the inner cavity of the second nozzle section is connected to the first nozzle section, and the second nozzle section extends to one side of the planetary carrier center axis 321, and the second nozzle section is provided with a planetary carrier center axis bearing lubrication injection hole 81 facing the planetary carrier center axis bearing and a ring gear bearing lubrication injection hole 82 facing the ring gear bearing.

[0131] Specifically, the T-type oil spray pipe 8 is connected to the oil outlet passage 1041 of the first housing of the flywheel housing, and the T-type oil spray pipe 8 includes a first section of the nozzle and a second section of the nozzle connected in a T-shape, wherein the first section of the nozzle is connected to the oil outlet passage 1041 of the first housing of the flywheel housing, and the second section of the nozzle extends to one side of the central axis of the planetary carrier, so as to facilitate the injection of oil from the second section of the nozzle through the lubricating oil spray hole 81 of the central axis bearing of the planetary carrier to spray oil on the central axis bearing of the planetary carrier 321. At the same time, the second section of the nozzle is provided with a ring gear bearing lubricating oil spray hole 82 facing the ring gear bearing. The ring gear bearing lubricating oil spray hole 82 injects oil from the second section of the nozzle to spray oil on the ring gear bearing.

[0132] The ring gear bearing includes a right ring gear bearing 331 and a left ring gear bearing 332 , and the ring gear bearing lubrication oil injection hole 82 faces the right ring gear bearing 331 .

[0133] In some embodiments, a clutch 10 for locking or unlocking the planet carrier 32 is also included, and a clutch lubrication oil injection hole 87 facing the clutch 10 is also opened on the first oil injection section.

[0134] In some embodiments, the clutch 10 is a one-way clutch.

[0135] like Figure 2As shown, the transmission gear set 4 includes a driving gear 41 and a driven gear 42. The driving gear 41 is directly connected to a gear shaft 43 or splined, and the driven gear 42 is processed on the gear shaft 43. The driving gear 41 is meshed with the outer ring of the gear ring 33, and the driven gear 42 is used to connect with the wheels of the vehicle. Figure 1 , Fig.12 , Fig.16 As shown, a bearing chamber 44 is provided on the flywheel housing 104, the gear shaft 43 passes through the bearing chamber 44, a gear bearing is sleeved on the gear shaft 43, a countershaft tooth surface lubrication oil injection hole 83 facing the tooth surface of the gear shaft 43 is provided on the first section of the nozzle, and a countershaft bearing lubrication oil outlet hole 441 connected to the first shell oil outlet channel 1041 of the flywheel housing and facing the gear bearing is provided in the bearing chamber 44.

[0136] The countershaft bearing lubrication oil outlet hole 441 takes oil from the first housing oil outlet passage 1041 of the flywheel housing and sprays oil on the countershaft bearing of the gear shaft 43. The countershaft bearing includes a countershaft left bearing and a countershaft right bearing, and the countershaft bearing lubrication oil outlet hole 441 preferably sprays oil on the countershaft left bearing.

[0137] like Fig.14 As shown, it also includes a differential 9 meshing with the transmission gear set 4, such as Fig.12 As shown, a differential cavity 91 is provided on the motor housing 1, and the differential 9 is partially accommodated in the differential cavity 91. A differential tooth surface lubrication injection hole 84 facing the tooth surface of the differential 9 is provided on the first injection section, and one or more radial differential cavity injection holes connected to the oil channel are also provided in the differential cavity 91.

[0138] like Fig.12 , Fig.14 , Fig.15 , Fig.17 As shown, the first section of the oil injection is provided with a differential tooth surface lubrication oil injection hole 84 facing the tooth surface of the differential 9, and the oil is injected from the first section of the oil injection to spray the differential 9. The fourth housing oil outlet passage 1044 of the flywheel housing is respectively connected with the oil seal lubrication oil injection passage 1045, the electromagnetic clutch bearing lubrication oil injection passage 1046, the differential right bearing lubrication oil injection passage 1047, and the differential shaft inner lubrication oil injection passage 1048.

[0139] The oil injection holes in the differential cavity include: an oil seal lubrication oil injection hole 911 connected to the oil seal lubrication oil injection passage 1045 for oil injection to the oil seal, an electromagnetic clutch bearing lubrication oil injection hole 912 connected to the electromagnetic clutch bearing lubrication oil injection passage 1046 for oil injection to the electromagnetic clutch bearing, a differential right bearing lubrication oil injection hole 913 connected to the differential right bearing lubrication oil injection passage 1047 for oil injection to the differential right bearing, and a differential shaft internal lubrication oil injection hole 914 connected to the differential shaft internal lubrication oil injection passage 1048. The differential shaft internal lubrication oil injection hole 914 mainly lubricates the left half shaft sliding bearing, and can also lubricate the differential bevel gear and half shaft gear and the right half shaft needle roller bearing.

[0140] In some embodiments, a differential left bearing lubrication oil injection hole 915 connected to the stator oil ring 211 is also included. The differential left bearing lubrication oil injection hole 915 lubricates the differential left bearing and the left half-shaft needle bearing.

[0141] like Fig.12 As shown, it also includes a first differential cavity external oil injection hole 85 connected to the first shell oil outlet passage 1041 of the flywheel housing and a second differential cavity external oil injection hole 86 connected to the fourth shell oil outlet passage 1044 of the flywheel housing. The first differential cavity external oil injection hole 85 and the second differential cavity external oil injection hole 86 are respectively oriented toward the differential 9, and the angle between the first differential cavity external oil injection hole 85 and the second differential cavity external oil injection hole 86 is 90°.

[0142] Specifically, the first differential cavity outer oil injection hole 85 is connected to the first housing oil outlet passage 1041 of the flywheel housing, the second differential cavity outer oil injection hole 86 is connected to the fourth housing oil outlet passage 1044 of the flywheel housing, the first differential cavity outer oil injection hole 85 and the center line of the differential cavity are the first line, the second differential cavity outer oil injection hole 86 and the center line of the differential cavity are the second line, and the angle between the first line and the second line is 90°. The first differential cavity outer oil injection hole 85 and the second differential cavity outer oil injection hole 86 are at an angle of 90°, and the first differential cavity outer oil injection hole 85 and the second differential cavity outer oil injection hole 86 mainly lubricate the differential bevel gear, the half-shaft gear, and the right half-shaft needle roller bearing.

[0143] In some embodiments, a disengagement mechanism is provided between the driven gear 42 and the differential 9. The disengagement mechanism controls the separation or engagement of the differential 9 and the wheel. The disengagement mechanism reduces the oil stirring loss of the reducer. The disengagement mechanism is an existing disengagement mechanism capable of achieving engagement or separation between the differential and the wheel end.

[0144] like Fig.15As shown, in some embodiments, the oil passage also includes a differential planetary gear lubricating oil injection passage 1049 connected to the fourth housing oil outlet passage 1044 of the flywheel housing and the third housing oil outlet passage 1043 of the flywheel housing, and the differential planetary gear lubricating oil injection passage 1049 is connected to the second differential cavity outer oil injection hole 86 to lubricate the differential gear.

[0145] This embodiment uses a T-type oil spray pipe to achieve differential tooth surface lubrication, countershaft tooth surface lubrication, gear ring bearing lubrication, engine input shaft bearing lubrication, and clutch lubrication. At the same time, the aperture is designed through simulation and reasonably distributed. In addition, due to the particularity of the differential adding a disengagement mechanism, the differential housing may not rotate, so a 90° angle oil spray hole is designed in combination with the structure of the differential housing, which can 100% guarantee that there is stable lubricating oil injection into the differential housing. At the same time, by opening an oil spray hole in the differential cavity that is connected to the oil channel in the differential cavity, lubrication of the differential shaft, lubrication of the differential right bearing, lubrication of the electromagnetic clutch bearing, oil seal lubrication, and differential planetary gear lubrication are achieved. The structure is simple, the aperture design is calculated through simulation, and the oil is reasonably distributed.

[0146] In some embodiments, the gear cavity 102 further includes a protruding structure 1022 , and the protruding structure 1022 is located below the differential cavity 91 to reduce the oil storage in the gear cavity.

[0147] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A power generation and drive integrated device with an active lubrication system, characterized in that: include: A motor housing (1), a motor (2), a planetary gear mechanism (3), a transmission gear set (4), a filter (5), an electronic pump (6), a flywheel housing (104) and a motor housing cover plate (105); The motor housing (1) comprises a motor cavity (101) for accommodating the motor (2) and a gear cavity (102) for accommodating the planetary gear mechanism (3) and the transmission gear set (4); the flywheel housing (104) closes the gear cavity (102); and the motor housing cover plate (105) closes the motor cavity (101); The bottom of the gear chamber (102) is separated into an oil suction chamber (103) by an oil separation rib (1031) of the motor housing. An oil return groove (1021) is provided at the connection between the oil separation rib (1031) of the motor housing and the bottom of the gear chamber (102). The filter (5) is accommodated in the oil suction chamber (103). The electronic pump (6) partially extends into the oil suction chamber (103) and is connected to the filter (5). The oil outlet of the filter (5) is connected to the oil inlet of the electronic pump (6). The oil outlet of the electronic pump (6) is connected to an oil channel. The oil channel is integrated in the motor housing (1), the flywheel housing (104) and the motor housing cover (105). The oil channel is connected to a plurality of oil injection holes.

2. The integrated power generation and driving device with active lubrication system according to claim 1, characterized in that: The oil suction port (51) of the filter (5) is located at the bottom of the oil suction chamber (103).

3. The integrated power generation and driving device with active lubrication system according to claim 1, characterized in that: The planetary gear mechanism (3) comprises a sun gear (31), a planet carrier (32), a ring gear (33) and a plurality of planetary gears (34); the plurality of planetary gears (34) are mounted on the planet carrier (32), and the planetary gears (34) are respectively meshed with the inner rings of the sun gear (31) and the ring gear (33); the planet carrier (32) is used to be connected to an engine; the motor (2) comprises a stator assembly (21) and a rotor assembly (22) accommodated in the stator assembly (21); the rotor assembly (22) is connected to the sun gear (31); A motor shaft bearing is sleeved on the rotor shaft (221) of the rotor assembly (22), a gear ring bearing is sleeved on the gear ring (33), a first sun gear thrust bearing (312) is arranged between the sun gear (31) and the motor housing (1), the oil spray hole comprises a bearing oil spray hole (701) located above the motor shaft bearing, the gear ring bearing and the sun gear bearing, and a motor bearing oil passage (702) connected to the motor shaft bearing, a gear ring bearing oil passage (703) connected to the gear ring bearing, and a sun gear thrust bearing oil passage (704) connected to the first sun gear thrust bearing (312) are respectively arranged below the bearing oil spray hole (701).

4. The integrated power generation and driving device with active lubrication system according to claim 3, characterized in that: The motor bearing oil passage (702), the ring gear bearing oil passage (703) and the sun gear thrust bearing oil passage (704) are trumpet-shaped oil passages.

5. The integrated power generation and driving device with active lubrication system according to claim 1, characterized in that: The oil passage comprises: a first housing oil outlet passage (1001) and a second housing oil outlet passage (1002) integrated in the motor housing (1); one end of the first housing oil outlet passage (1001) is connected to the oil outlet of the electronic pump (6), and the other end is connected to one end of the second housing oil outlet passage (1002); the other end of the second housing oil outlet passage (1002) is connected to an oil cooler (7) fixed to the motor housing (1).

6. The integrated power generation and driving device with active lubrication system according to claim 5, characterized in that: The motor (2) comprises a stator assembly (21) and a rotor assembly (22) accommodated in the stator assembly (21); The oil passage also includes: an oil cooler oil outlet passage (705), a stator oil inlet passage (706), a first rotor oil inlet passage (707), and a stator oil ring (211) integrated in the motor housing (1); The oil passage also includes: a second rotor oil inlet passage (713) integrated in the motor housing cover plate (105); One end of the oil cooler oil outlet passage (705) is in communication with the oil outlet of the oil cooler (7), and the other end is respectively in communication with the stator oil inlet passage (706) and the first rotor oil inlet passage (707); the stator oil inlet passage (706) is in communication with the stator oil ring (211) surrounding the stator assembly (21); the first rotor oil inlet passage (707) is in communication with one end of the second rotor oil inlet passage (713); and the other end of the second rotor oil inlet passage (713) is in communication with the oil cavity (2211) in the rotor shaft of the rotor assembly (22).

7. The integrated power generation and driving device with active lubrication system according to claim 6, characterized in that: The diameter of the stator oil inlet passage (706) is greater than the diameter of the first rotor oil inlet passage (707).

8. The integrated power generation and driving device with active lubrication system according to claim 6, characterized in that: The planet carrier (32) comprises a planet carrier central shaft (321), one end of the planet carrier central shaft (321) is inserted into the oil chamber (2211) in the rotor shaft, and the other end is used to connect with the engine. The planet carrier central shaft (321) is provided with a planet carrier central shaft inner oil chamber (322) which is connected with the rotor shaft inner oil chamber (2211). The planet carrier central shaft is also provided with a first planet carrier central shaft oil-slinging hole (323) which is radial and connected with the planet carrier central shaft inner oil chamber (322). The planetary gear mechanism (3) comprises a sun gear (31), and the sun gear (31) is provided with a radial sun gear oil-slinging hole (311). The first planet carrier central shaft oil-slinging hole (323) is connected with the sun gear oil-slinging hole (311) during rotation.

9. The integrated power generation and driving device with active lubrication system according to claim 8, characterized in that: The planet carrier (32) further comprises a planet gear hollow pin shaft (324), the planet gear (34) being sleeved on the planet gear hollow pin shaft (324), the planet gear hollow pin shaft (324) comprising a hollow shaft cavity (3241) and a hollow pin shaft oil-slinging hole (3242) communicating with the hollow shaft cavity (3241), the axis center entrance of the planet gear hollow pin shaft (324) being provided with a planet carrier oil guide plate (325) located on the oil drain path of the sun gear oil-slinging hole (311), the planet carrier oil guide plate (325) facing the axis center entrance of the planet gear hollow pin shaft (324) to introduce oil into the planet gear hollow pin shaft (324).

10. The integrated power generation and driving device with active lubrication system according to claim 8, characterized in that: The planet carrier (32) also includes a second planet carrier center shaft oil-slinging hole (326) which is radially connected to the oil chamber (322) in the center shaft of the planet carrier. A second sun gear thrust bearing (313) is sleeved on the center shaft of the planet carrier (321). The second sun gear thrust bearing (313) is located between the sun gear (31) and the center shaft of the planet carrier (321), and the second sun gear thrust bearing (313) is located on the oil drain path of the second planet carrier center shaft oil-slinging hole (326).

11. The integrated power generation and driving device with active lubrication system according to claim 1, characterized in that: The oil passage comprises: a first housing oil outlet passage (1041) of the flywheel housing, a second housing oil outlet passage (1042) of the flywheel housing, a third housing oil outlet passage (1043) of the flywheel housing, and a fourth housing oil outlet passage (1044) of the flywheel housing, which are integrated in the flywheel housing (104); The oil outlet of the electronic pump (6) is respectively connected to the oil outlet passage (1041) of the first shell of the flywheel housing and the oil outlet passage (1042) of the second shell of the flywheel housing, and the oil outlet passage (1042) of the second shell of the flywheel housing is sequentially connected to the oil outlet passage (1043) of the third shell of the flywheel housing and the oil outlet passage (1044) of the fourth shell of the flywheel housing; The first shell oil outlet passage (1041) of the flywheel housing is integrated into the inner wall of the flywheel housing (104), and the third shell oil outlet passage (1043) of the flywheel housing is integrated into the outer wall of the flywheel housing (104).

12. The integrated power generation and driving device with active lubrication system according to claim 11, characterized in that: The invention also comprises a T-shaped oil injection pipe (8) fixed to the flywheel housing (104) and connected to the oil outlet passage (1041) of the first housing of the flywheel housing, the T-shaped oil injection pipe (8) comprising a first section and a second section of the nozzle which are vertically connected to each other, the first section of the nozzle is connected to the flywheel housing (104), and the inner cavity of the first section of the nozzle is connected to the oil outlet passage (1041) of the first housing of the flywheel housing, the planetary carrier (32) comprises a planetary carrier central axis (321), the inner cavity of the second section of the nozzle is connected to the first section of the nozzle, and the second section of the nozzle extends to one side of the planetary carrier central axis (321), and the second section of the nozzle is provided with a planetary carrier central axis bearing lubricating oil injection hole (81) facing the planetary carrier central axis bearing and a ring gear bearing lubricating oil injection hole (82) facing the ring gear bearing.

13. The integrated power generation and driving device with active lubrication system according to claim 12, characterized in that: The transmission gear set (4) comprises a driving gear (41), a driven gear (42) and a gear shaft (43); the driving gear (41) is connected to the gear shaft (43); a driven gear (42) is arranged on the gear shaft (43); the driving gear (41) meshes with the outer ring of the gear ring (33); the driven gear (42) is used to connect with the wheel of the vehicle; a bearing chamber (44) is provided on the flywheel housing (104); the gear shaft (43) passes through the bearing chamber (44); a gear bearing is sleeved on the gear shaft (43); a countershaft tooth surface lubrication oil injection hole (83) facing the tooth surface of the gear shaft (43) is provided on the first section of the nozzle; a countershaft bearing lubrication oil outlet hole (441) connected to the first housing oil outlet passage (1041) of the flywheel housing and facing the gear bearing is provided in the bearing chamber (44).

14. The integrated power generation and driving device with active lubrication system according to claim 13, characterized in that: The invention also comprises a differential (9) meshing with the transmission gear set (4); a differential cavity (91) is provided on the flywheel housing (104); the differential (9) is partially accommodated in the differential cavity (91); a differential tooth surface lubrication spray hole (84) facing the tooth surface of the differential (9) is provided on the first injection section; and an oil seal lubrication spray hole (911) in radial direction and connected to the fourth housing oil outlet passage (1044) of the flywheel housing, an electromagnetic clutch bearing lubrication spray hole (912), a differential right bearing lubrication spray hole (913) and a differential shaft inner lubrication spray hole (914) are also provided in the differential cavity (91).

15. The integrated power generation and driving device with active lubrication system according to claim 14, characterized in that: It also includes a first differential cavity external oil injection hole (85) connected to the first housing oil outlet passage (1041) of the flywheel housing, and a second differential cavity external oil injection hole (86) connected to the fourth housing oil outlet passage (1044) of the flywheel housing, wherein the first differential cavity external oil injection hole (85) and the second differential cavity external oil injection hole (86) are respectively oriented toward the differential (9), and an included angle between the first differential cavity external oil injection hole (85) and the second differential cavity external oil injection hole (86) is 90°.

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