Speed reducer structure, dual motor assembly and vehicle

Abstract

The embodiment of the application provides a reducer structure, a double-motor assembly and a vehicle. When the vehicle travels forward, lubricating oil enters a first oil collecting assembly through an output shaft system, so that the lubricating oil provides lubrication for the front end of an intermediate shaft system and the front end of an input shaft system through a first part, and provides lubrication for the rear end of the intermediate shaft system, the rear end of the output shaft system and the rear end of the input shaft system through a second part, and the lubricating oil flies out at the meshing part of the counterclockwise rotation of the input shaft system and the counterclockwise rotation of the intermediate shaft system and enters a second oil collecting assembly, so that the lubricating oil provides lubrication for the rear end of the input shaft system. When the vehicle travels backward, the lubricating oil provides lubrication for the front end of the input shaft system and the front end of the intermediate shaft system through a third oil collecting assembly. The whole process can realize passive lubrication, ensure that the lubrication effect is best under the working condition of forward rotation or reverse rotation of the vehicle, improve the reliability of the reducer structure and prolong the service life of the reducer structure.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric machines, in particular to a reducer structure, a dual-motor assembly and a vehicle. BACKGROUND

[0002] At present, with the rapid development of the new energy vehicle market, the demand for the integration and high efficiency of the electric drive assembly is higher and higher. In the current market, in addition to the traditional single-motor architecture, the dual-motor architecture suitable for medium and large vehicles, high-performance vehicles and off-road vehicles also begin to develop vigorously.

[0003] The dual-motor drive assembly has a higher integration degree than the single-motor drive assembly, and the motor and the reducer drive assembly as core components have higher requirements for the cooling and lubricating system. In the prior art, the motor rotor and the stator of the dual-motor drive assembly are forcibly sprayed with oil through an internal oil circuit and an oil pipe, and the reducer bearings and gears are lubricated by splashing oil, which makes it difficult to control the lubricating oil flow of the two motors separately, difficult to meet the different flow requirements when the motor load is different, and prone to poor lubrication effect, which is not conducive to improving the working efficiency of the cooling and lubricating system and the dual-motor drive assembly. SUMMARY

[0004] The purpose of the embodiments of the present application is to provide a reducer structure, a dual-motor assembly and a vehicle, which can realize passive lubrication, ensure that the lubrication effect is optimal no matter whether the vehicle is in forward rotation or reverse rotation, improve the reliability of the equipment, and prolong the service life.

[0005] In a first aspect, the embodiments of the present application provide a reducer structure, comprising: a housing mechanism, the housing mechanism is provided with a first bearing chamber, a second bearing chamber, a third bearing chamber, a first oil collecting assembly, a second oil collecting assembly and a third oil collecting assembly, the first bearing chamber is configured to assemble an input shaft system, the second bearing chamber is configured to assemble an intermediate shaft system, the third bearing chamber is configured to assemble an output shaft system, the first oil collecting assembly comprises a first part and a second part, the first part is in communication with the first bearing chamber and the second bearing chamber, the second part is in communication with the first bearing chamber, the second bearing chamber and the third bearing chamber, the second oil collecting assembly is located on opposite sides of the housing mechanism, and the second oil collecting assembly is in communication with the first bearing chamber, the third oil collecting assembly is located on the same side of the housing mechanism as the first oil collecting assembly, and the third oil collecting assembly is in communication with the first bearing chamber and the second bearing chamber; wherein

[0006] When the vehicle is running forward, the input shaft system rotates counterclockwise, the intermediate shaft system rotates clockwise, the output shaft system rotates counterclockwise, the lubricating oil enters the first oil collecting assembly through the output shaft system, so that the lubricating oil provides lubrication for the front end of the intermediate shaft system and the front end of the input shaft system through the first part, and provides lubrication for the rear end of the intermediate shaft system, the rear end of the output shaft system and the rear end of the input shaft system through the second part, while the lubricating oil flies out at the meshing position of the counterclockwise rotation of the input shaft system and the counterclockwise rotation of the intermediate shaft system and enters the second oil collecting assembly, so that the lubricating oil provides lubrication for the rear end of the input shaft system.

[0007] When the vehicle is running backward, the input shaft system rotates clockwise, the intermediate shaft system rotates counterclockwise, the output shaft system rotates clockwise, and the lubricating oil provides lubrication for the front end of the input shaft system and the front end of the intermediate shaft system through the third oil collecting assembly.

[0008] In the above implementation process, the first oil collecting assembly, the second oil collecting assembly and the third oil collecting assembly are arranged on the shell mechanism, so that when the vehicle is running forward, the output shaft system rotates counterclockwise and drives the lubricating oil into the first oil collecting assembly, and part of the lubricating oil is lubricated for the front end of the intermediate shaft system and the front end of the input shaft system under the action of the first part, and another part of the lubricating oil is lubricated for the rear end of the intermediate shaft system, the rear end of the input shaft system and the rear end of the output shaft system respectively under the action of the second part, while the lubricating oil flies out at the meshing position of the input shaft system and the intermediate shaft system and enters the second oil collecting assembly, to realize lubrication for the rear end of the input shaft system; when the vehicle is running backward, the front end of the input shaft system and the front end of the intermediate shaft system can be lubricated through the third oil collecting assembly, and the whole process can realize passive lubrication, so that the lubrication effect can be best under the working condition of forward rotation or reverse rotation of the vehicle, the reliability of the reducer structure is improved, and the service life is prolonged.

[0009] In some embodiments, the first oil collecting assembly comprises a first oil collecting piece, a first oil channel, a second oil channel, a third oil channel, a fourth oil channel, a fifth oil channel, a sixth oil channel and a seventh oil channel, the first oil collecting piece is integrated in the housing mechanism, the first oil channel is in communication with one side of the first oil collecting piece, the second oil channel is in communication with the first oil channel, the second oil channel extends to the front end position of the second bearing chamber from the side away from the first oil channel, one end of the third oil channel is in communication with the second bearing chamber, and the other end of the third oil channel extends to the front end position of the first bearing chamber, the fourth oil channel is in communication with the other side of the first oil collecting piece, the fifth oil channel is in communication with the fourth oil channel, the fifth oil channel extends to the rear end position of the second bearing chamber from the side away from the fourth oil channel, one end of the sixth oil channel is in communication with the second bearing chamber, and the other end of the sixth oil channel extends to the rear end position of the first bearing chamber, one end of the seventh oil channel is in communication with the second bearing chamber, and the other end of the seventh oil channel extends to the rear end position of the third bearing chamber.

[0010] In the above implementation process, when the vehicle is driving forward, the lubricating oil entering the first oil collecting piece, a part of the lubricating oil can provide lubrication for the front end of the intermediate shaft system and the front end of the input shaft system under the action of the first oil channel, the second oil channel and the third oil channel, another part of the lubricating oil lubricates the rear end of the intermediate shaft system under the action of the fourth oil channel and the fifth oil channel, and then the lubricating oil is divided into two parts again, one part provides lubrication for the rear end of the input shaft system through the sixth oil channel, and the other part provides lubrication for the rear end of the output shaft system through the seventh oil channel, which is conducive to the lubrication and cooling of the input shaft system, the intermediate shaft system and the output shaft system, realizes passive lubrication, improves the reliability of the equipment, prolongs the service life, and at the same time, the manufacturing process of the first oil collecting piece, the first oil channel to the seventh oil channel only involves casting and simple mechanical processing, which effectively reduces the production cost.

[0011] In some embodiments, the second oil channel is inclinedly distributed along a preset angle. It is conducive to the flow of lubricating oil from the first oil channel to the second oil channel, and the provision of lubrication for the front end of the intermediate shaft system through the second oil channel, which realizes passive lubrication and cooling, improves the reliability of the vehicle during operation, and prolongs the service life of the reducer structure.

[0012] In some embodiments, the height at which the third oil channel is connected to the second bearing chamber is higher than the height at which the second oil channel is connected to the second bearing chamber. It can ensure that the front end of the intermediate shaft system is fully lubricated, and at the same time, the front end of the input shaft system can be lubricated under the action of the third oil channel, and the lubrication effect is better.

[0013] In some embodiments, the first oil collecting member comprises a first oil collecting edge and a second oil collecting edge, the first oil collecting edge is connected to the second oil collecting edge, and the other ends of the first oil collecting edge and the second oil collecting edge extend in directions away from each other to form a first oil collecting groove, wherein the first oil collecting edge forms a first gap with the intermediate shaft system, and the second oil collecting edge forms a second gap with the output shaft system.

[0014] In the implementation process, the first oil collecting edge and the second oil collecting edge are connected and extend in directions away from each other to form a first oil collecting groove, which can ensure the collection of lubricating oil, facilitate the entry of lubricating oil into the corresponding oil channel, realize the lubrication of the input shaft system, the intermediate shaft system and the output shaft system, and achieve passive lubrication, so that the lubrication effect is optimal, the reliability of the reducer structure is improved, and the service life is prolonged.

[0015] In some embodiments, the second oil collecting assembly comprises a second oil collecting member, an eighth oil channel and a ninth oil channel, the second oil collecting member is integrated in the housing mechanism, the eighth oil channel is in communication with the second oil collecting member, and one end of the ninth oil channel is connected to the eighth oil channel and the other end thereof extends to the rear end position of the first bearing chamber.

[0016] In the implementation process, when the vehicle drives forward, the lubricating oil is ejected at the meshing position of the input shaft system and the intermediate shaft system, enters the second oil collecting member along the inner wall of the housing mechanism, and then passes through the eighth oil channel and the ninth oil channel to lubricate the rear end of the input shaft system, thereby achieving passive lubrication, so that the lubrication effect is optimal, the reliability of the reducer structure is improved, and the service life is prolonged. At the same time, the manufacturing process of the second oil collecting member, the eighth oil channel and the ninth oil channel only involves casting and simple mechanical processing, thereby effectively reducing the production cost.

[0017] In some embodiments, the second oil collecting member is located on the side of the housing mechanism close to the first bearing chamber to collect the lubricating oil ejected at the meshing position of the input shaft system and the intermediate shaft system during the operation of the vehicle. Passive lubrication of the rear end of the input shaft system is realized, the lubrication effect is optimal, the reliability of the reducer structure is improved, and the service life is prolonged.

[0018] In some embodiments, the third oil collecting assembly comprises a third oil collecting member, a tenth oil channel and an eleventh oil channel, the third oil collecting member is integrated in the housing mechanism, the tenth oil channel is in communication with the third oil collecting member, and one end of the eleventh oil channel is connected to the tenth oil channel and the other end thereof extends to the front end position of the second bearing chamber.

[0019] In the implementation process, when the vehicle drives backward, the lubricating oil is thrown into the third oil collecting part under the rotation of the intermediate shaft system, then the tenth oil channel provides lubrication for the front end of the input shaft system, and the eleventh oil channel provides lubrication for the front end of the intermediate shaft system, passive lubrication is realized, the lubrication effect can reach the best, the reliability of the reducer structure is improved, the service life is prolonged, and the manufacturing process of the third oil collecting part, the tenth oil channel and the eleventh oil channel only involves casting and simple machining, so that the production cost is effectively reduced.

[0020] In some embodiments, the shell mechanism is further provided with a first oil guide groove, a second oil guide groove and a third oil guide groove, the first oil guide groove, the second oil guide groove and the third oil guide groove are located on the same side of the shell mechanism, the first oil guide groove is in communication with the first bearing chamber, the second oil guide groove is in communication with the second bearing chamber, and the third oil guide groove is in communication with the third bearing chamber.

[0021] In the implementation process, the first oil guide groove, the second oil guide groove and the third oil guide groove are arranged on one side of the shell mechanism to collect the lubricating oil on the inner wall of the shell mechanism, lubrication of the input shaft system, the intermediate shaft system and the output shaft system is realized, passive lubrication is realized, the lubrication effect can reach the best, the reliability of the reducer structure is improved, the service life is prolonged, and the first oil guide groove, the second oil guide groove and the third oil guide groove are directly cast in the shell mechanism, so that the structure is simple and direct.

[0022] In some embodiments, the shell mechanism is further provided with a fourth oil guide groove, a fifth oil guide groove and a sixth oil guide groove, the fourth oil guide groove is located on the side of the shell mechanism away from the first oil guide groove, the fourth oil guide groove, the fifth oil guide groove and the sixth oil guide groove are located on the same side of the shell mechanism, the fourth oil guide groove is in communication with the first bearing chamber, the fifth oil guide groove is in communication with the second bearing chamber, and the sixth oil guide groove is in communication with the third bearing chamber.

[0023] In the implementation process, the fourth oil guide groove, the fifth oil guide groove and the sixth oil guide groove are arranged on one side of the shell mechanism to collect the lubricating oil on the inner wall of the shell mechanism, lubrication of the input shaft system, the intermediate shaft system and the output shaft system is realized, passive lubrication is realized, the lubrication effect can reach the best, the reliability of the reducer structure is improved, the service life is prolonged, and the fourth oil guide groove, the fifth oil guide groove and the sixth oil guide groove are directly cast in the shell mechanism, so that the structure is simple and direct.

[0024] In some embodiments, the center of the second bearing chamber is located above the line connecting the centers of the first bearing chamber and the third bearing chamber. The lubrication effect can be improved, the reliability of the equipment can be improved, and the service life can be prolonged.

[0025] In a second aspect, the application further provides a dual-motor assembly comprising the speed reducer structure according to any one of the above.

[0026] The dual-motor assembly provided in the second aspect comprises the speed reducer structure, so the dual-motor assembly has all the technical effects of the speed reducer structure, which will not be repeated here.

[0027] In a third aspect, the application further provides a vehicle comprising the dual-motor assembly according to the above.

[0028] The vehicle provided in the third aspect comprises the dual-motor assembly, so the vehicle has all the technical effects of the dual-motor assembly, which will not be repeated here.

[0029] Other features and advantages of the present application will be described in the following description, or can be learned from the description, or can be determined without any doubt, or can be known by implementing the above-mentioned technologies of the present application.

[0030] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the following preferred embodiments are specifically described, and the accompanying drawings are referred to, and the detailed description is as follows. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments of the present application. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation to the scope. For those skilled in the art, other related drawings can also be obtained without any creative labor on the basis of these drawings.

[0032] Figure 1 A structural schematic diagram of one side of the speed reducer structure provided in the embodiments of the present application;

[0033] Figure 2 A structural schematic diagram of the other side of the speed reducer structure provided in the embodiments of the present application;

[0034] Figure 3 A sectional view of the speed reducer structure provided in the embodiments of the present application;

[0035] Figure 4 A structural schematic diagram of the housing mechanism of the speed reducer structure provided in the embodiments of the present application;

[0036] Figure 5 A lubrication principle schematic diagram of one side of the speed reducer structure provided in the embodiments of the present application;

[0037] Figure 6 A lubrication principle schematic diagram of the other side of the speed reducer structure provided in the embodiments of the present application.

[0038] REFERENCE SIGNS

[0039] 00, housing mechanism; 10, input shaft system; 11, input shaft front bearing; 12, input shaft rear bearing; 13, primary driving gear; 20, intermediate shaft system; 21, intermediate shaft front bearing; 22, intermediate shaft rear bearing; 23, primary driven gear; 24, secondary driving gear; 30, output shaft system; 31, output shaft front bearing; 32, output shaft rear bearing; 33, secondary driven gear; 40, oil guide plate; 41, bolt;

[0040] A1, first oil collecting member; 001, first oil passage; 002, second oil passage; 003, third oil passage; 004, fourth oil passage; 005, fifth oil passage; 006, sixth oil passage; 007, seventh oil passage;

[0041] A2, second oil collecting member; 008, eighth oil passage; 009, ninth oil passage;

[0042] A3, third oil collecting member; 010, tenth oil passage; 011, eleventh oil passage;

[0043] B1, first oil guide groove; B2, second oil guide groove; B3, third oil guide groove; B4, fourth oil guide groove; B5, fifth oil guide groove; B6, sixth oil guide groove. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0045] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0046] In addition, the above-mentioned terms can be used to represent other meanings in addition to the orientation or positional relationship, for example, the term "upper" can also be used to represent a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in this application can be understood according to the specific circumstances.

[0047] In addition, the terms "mounting", "setting", "provided with", "connected", "connected" should be broadly understood. For example, it can be fixed connection, detachable connection, or integral structure; it can be mechanical connection, or point connection; it can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0048] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise stated, the meaning of "multiple" is two or more.

[0049] Embodiments

[0050] The drive system of the automobile, especially the electric automobile, mainly has single motor centralized drive and multi-motor distributed drive. Since the single motor centralized drive adopts differential to drive the left and right half shafts of the vehicle respectively, it cannot adjust the driving force of the wheels of the vehicle individually, and the multi-motor distributed drive structure is complex.

[0051] In order to simplify the structure, the market gradually appears the automobile without differential. For example, the double motor drive reducer of the pure electric vehicle, the inventors found some technical challenges need to be overcome in the design process. First, the passive lubrication scheme arranged on the intermediate shaft often fails to achieve the ideal lubrication effect, which may lead to mechanical performance degradation and increased maintenance cost. Secondly, although the active lubrication scheme can provide better lubrication effect, its design is usually more complex, which not only increases the difficulty of production, but also increases the cost. Therefore, developing a lubrication system that can effectively lubricate and is economical and practical is crucial to the reliability and economy of the double motor reducer.

[0052] In view of this, as Figures 1-6As shown in the first aspect, the embodiment of the present application provides a reducer structure, comprising: a housing mechanism 00, which is provided with a first bearing chamber, a second bearing chamber, a third bearing chamber, a first oil collection assembly, a second oil collection assembly and a third oil collection assembly, the first bearing chamber is configured to assemble an input shaft system 10, the second bearing chamber is configured to assemble an intermediate shaft system 20, and the third bearing chamber is configured to assemble an output shaft system 30, the first oil collection assembly comprises a first part and a second part, the first part is in communication with the first bearing chamber and the second bearing chamber, and the second part is in communication with the first bearing chamber, the second bearing chamber and the third bearing chamber, the second oil collection assembly is located on the opposite side of the housing mechanism 00, and the second oil collection assembly is in communication with the first bearing chamber, and the third oil collection assembly is located on the same side of the housing mechanism 00 as the first oil collection assembly, and the third oil collection assembly is in communication with the first bearing chamber and the second bearing chamber; wherein

[0053] When the vehicle drives forward, the input shaft system 10 rotates counterclockwise, the intermediate shaft system 20 rotates clockwise, the output shaft system 30 rotates counterclockwise, and the lubricating oil enters the first oil collection assembly through the output shaft system 30, so that the lubricating oil provides lubrication for the front end of the intermediate shaft system 20 and the front end of the input shaft system 10 through the first part, and provides lubrication for the rear end of the intermediate shaft system 20, the rear end of the output shaft system 30 and the rear end of the input shaft system 10 through the second part, while the lubricating oil flies out at the meshing part of the counterclockwise rotation of the input shaft system 10 and the counterclockwise rotation of the intermediate shaft system 20 and enters the second oil collection assembly, so that the lubricating oil provides lubrication for the rear end of the input shaft system 10.

[0054] When the vehicle drives backward, the input shaft system 10 rotates clockwise, the intermediate shaft system 20 rotates counterclockwise, and the output shaft system 30 rotates clockwise, and the lubricating oil provides lubrication for the front end of the input shaft system 10 and the front end of the intermediate shaft system 20 through the third oil collection assembly.

[0055] For example, the reducer structure provided by the present application is provided with the first oil collection assembly, the second oil collection assembly and the third oil collection assembly, which can be used to realize passive lubrication of the input shaft system 10, the intermediate shaft system 20 and the output shaft system 30, and in combination with the active lubrication (i.e. lubrication by using the driving pump to suck in lubricating oil) of the reducer structure, the lubrication effect can be ensured to be optimal.

[0056] It can be understood that the input shaft system 10 includes an input shaft, an input shaft front bearing 11, an input shaft rear bearing 12 and a primary driving gear 13, the input shaft is distributed along the front and rear directions, the input shaft front bearing 11, the input shaft rear bearing 12 and the primary driving gear 13 are all sleeved on the input shaft, and the input shaft front bearing 11 is located at the front end of the input shaft, and the input shaft rear bearing 12 is located at the rear end of the input shaft, for mounting the input shaft to the housing mechanism 00; the intermediate shaft system 20 includes an intermediate shaft, an intermediate shaft front bearing 21, an intermediate shaft rear bearing 22, a primary driven gear 23 and a secondary driving gear 24, the intermediate shaft is distributed along the front and rear directions, the intermediate shaft front bearing 21, the intermediate shaft rear bearing 22, the primary driven gear 23 and the secondary driving gear 24 are all sleeved on the intermediate shaft, and the intermediate shaft front bearing 21 is located at the front end of the intermediate shaft, and the intermediate shaft rear bearing 22 is located at the rear end of the intermediate shaft, and the primary driven gear 23 is used for engaging with the primary driving gear 13; the output shaft system 30 includes an output shaft, an output shaft front bearing 31, an output shaft rear bearing 32 and a secondary driven gear 33, the output shaft is distributed along the front and rear directions, the output shaft front bearing 31, the output shaft rear bearing 32 and the secondary driven gear 33 are all sleeved on the output shaft, and the secondary driven gear 33 is used for engaging with the secondary driving gear 24, wherein the circulation of the lubricating oil through the first oil collecting assembly, the second oil collecting assembly and the third oil collecting assembly can be used for lubricating the input shaft front bearing 11, the input shaft rear bearing 12, the intermediate shaft front bearing 21, the intermediate shaft rear bearing 22, the output shaft front bearing 31 and the output shaft rear bearing 32.

[0057] In the above implementation process, the housing mechanism 00 is provided with a first oil collecting assembly, a second oil collecting assembly and a third oil collecting assembly, so that when the vehicle drives forward, the output shaft system 30 rotates counterclockwise and drives the lubricating oil into the first oil collecting assembly, and part of the lubricating oil is lubricated to the front end of the intermediate shaft system 20 and the front end of the input shaft system 10 under the action of the first part, and another part of the lubricating oil is lubricated to the rear end of the intermediate shaft system 20, the rear end of the input shaft system 10 and the rear end of the output shaft system 30 respectively under the action of the second part, while the lubricating oil flies out at the meshing position of the input shaft system 10 and the intermediate shaft system 20 and enters the second oil collecting assembly, thereby lubricating the rear end of the input shaft system 10; when the vehicle drives backward, the front end of the input shaft system 10 and the front end of the intermediate shaft system 20 can be lubricated through the third oil collecting assembly, and the whole process can realize passive lubrication, so that the lubrication effect can be best under the working condition of forward rotation or reverse rotation of the vehicle, the reliability of the reducer structure is improved, and the service life is prolonged.

[0058] As Figure 1 , Figure 2 , Figure 4 and Figure 5 shown, the first oil collecting assembly includes a first oil collecting member A1, a first oil passage 001, a second oil passage 002, a third oil passage 003, a fourth oil passage 004, a fifth oil passage 005, a sixth oil passage 006 and a seventh oil passage 007, the first oil collecting member A1 is integrated in the housing mechanism 00, the first oil passage 001 is in communication with one side of the first oil collecting member A1, the second oil passage 002 is in communication with the first oil passage 001, the second oil passage 002 extends to the front end position of the second bearing chamber from the side away from the first oil passage 001, one end of the third oil passage 003 is in communication with the second bearing chamber, and the other end extends to the front end position of the first bearing chamber, the fourth oil passage 004 is in communication with the other side of the first oil collecting member A1, the fifth oil passage 005 is in communication with the fourth oil passage 004, the fifth oil passage 005 extends to the rear end position of the second bearing chamber from the side away from the fourth oil passage 004, one end of the sixth oil passage 006 is in communication with the second bearing chamber, and the other end extends to the rear end position of the first bearing chamber, one end of the seventh oil passage 007 (for example, 17° and above) is in communication with the second bearing chamber, and the other end extends to the rear end position of the third bearing chamber.

[0059] For example, the second driven gear 33 rotates counterclockwise to drive the lubricating oil at the bottom of the housing mechanism 00 into the first oil collecting member A1, wherein the first oil passage 001 is mainly used to provide lubricating oil to the second oil passage 002, and the fourth oil passage 004 is mainly used to provide lubricating oil to the fifth oil passage 005.

[0060] In the implementation process, when the vehicle is running forward, the lubricating oil entering the first oil collecting piece A1, part of the lubricating oil is under the action of the first oil channel 001, the second oil channel 002 and the third oil channel 003, and can provide lubrication for the front end of the intermediate shaft system 20 (i.e. the intermediate shaft front bearing 21) and the front end of the input shaft system 10 (i.e. the input shaft front bearing 11), another part of the lubricating oil is under the action of the fourth oil channel 004 and the fifth oil channel 005 to lubricate the rear end of the intermediate shaft system 20 (i.e. the intermediate shaft rear bearing 22), and then the lubricating oil is divided again, one part of which provides lubrication for the rear end of the input shaft system 10 (i.e. the input shaft rear bearing 12) through the sixth oil channel 006, and the other part provides lubrication for the rear end of the output shaft system 30 (i.e. the output shaft rear bearing 32) through the seventh oil channel 007, which is beneficial to the lubrication and cooling of the input shaft system 10, the intermediate shaft system 20 and the output shaft system 30, realizes passive lubrication, improves the reliability of the equipment, prolongs the service life, and at the same time, the manufacturing process of the first oil collecting piece A1, the first oil channel 001 to the seventh oil channel 007 only involves casting and simple machining, which effectively reduces the production cost.

[0061] In some embodiments, the second oil channel 002 is inclinedly distributed along a preset angle, for example, the second oil channel 002 is distributed at 17° with the horizontal plane of the whole vehicle. It is beneficial for the lubricating oil to flow from the first oil channel 001 to the second oil channel 002, and to provide lubrication for the front end of the intermediate shaft system 20 through the second oil channel 002, which realizes passive lubrication and cooling, improves the reliability of the vehicle during operation, and prolongs the service life of the reducer structure.

[0062] In some embodiments, the height of the third oil channel 003 connected to the second bearing chamber is higher than the height of the second oil channel 002 connected to the second bearing chamber. It can ensure that the front end of the intermediate shaft system 20 is fully lubricated, and at the same time, under the action of the third oil channel 003, it can realize the lubrication of the front end of the input shaft system 10, i.e. the third oil channel 003 provides lubrication for the input shaft front bearing 11, and the lubrication effect is better.

[0063] As Figure 1 , Figure 2 and Figure 4The first oil collecting piece A1 includes a first oil collecting edge and a second oil collecting edge. The first oil collecting edge is connected to the second oil collecting edge, and the other ends of the two edges extend in a direction away from each other to form a first oil collecting groove. For example, the first oil collecting piece A1 is substantially V-shaped. The included angle between the first oil collecting edge and the second oil collecting edge is not specifically limited. The first oil collecting edge forms a first gap with the intermediate shaft system 20, and the second oil collecting edge forms a second gap with the output shaft system 30. The second primary gear 24 is located outside the first oil collecting edge and is spaced apart from the first oil collecting edge by about 2 mm. The addendum of the second driven gear 33 is located outside the second oil collecting edge and is spaced apart from the second oil collecting edge by about 2 mm.

[0064] In the implementation process, the first oil collecting edge and the second oil collecting edge are connected and extend in a direction away from each other to form a first oil collecting groove, which can ensure the collection of lubricating oil and facilitate the entry of lubricating oil into the corresponding oil channel, thereby achieving lubrication of the input shaft system 10, the intermediate shaft system 20, and the output shaft system 30 and passive lubrication. The lubrication effect can be optimal, the reliability of the reducer structure is improved, and the service life is prolonged.

[0065] In some embodiments, the second oil collecting assembly includes a second oil collecting piece A2, an eighth oil channel 008, and a ninth oil channel 009. The second oil collecting piece A2 is integrated into the housing mechanism 00 and is distributed at an angle with the inner wall of the housing mechanism 00 to form a second oil collecting groove. The eighth oil channel 008 is in communication with the second oil collecting piece A2. One end of the ninth oil channel 009 is connected to the eighth oil channel 008, and the other end extends to the rear end position of the first bearing chamber.

[0066] In the implementation process, when the vehicle drives forward, the lubricating oil is ejected at the meshing position of the input shaft system 10 and the intermediate shaft system 20, i.e., the meshing position of the primary driving gear 13 and the primary driven gear 23, and enters the second oil collecting piece A2 along the inner wall of the housing mechanism 00. Then, through the eighth oil channel 008 and the ninth oil channel 009, lubrication is provided to the rear end of the input shaft system 10, i.e., the lubricating oil in the ninth oil channel 009 provides lubrication to the rear bearing 12 of the input shaft, achieving passive lubrication. The lubrication effect can be optimal, the reliability of the reducer structure is improved, and the service life is prolonged. At the same time, the manufacturing process of the second oil collecting piece A2, the eighth oil channel 008, and the ninth oil channel 009 only involves casting and simple mechanical processing, effectively reducing the production cost.

[0067] In some embodiments, the second oil collecting component A2 is located on the side of the housing mechanism 00 close to the first bearing chamber, to collect the lubricating oil splashed when the input shaft system 10 and the intermediate shaft system 20 are engaged during vehicle operation. The passive lubrication of the rear end of the input shaft system 10 is achieved, and the lubrication effect can be optimal, improving the reliability of the reducer structure and prolonging the service life.

[0068] As shown in Figure 1 and Figure 5 The third oil collecting assembly includes a third oil collecting component A3, a tenth oil channel 010 and an eleventh oil channel 011. The third oil collecting component A3 is integrated into the housing mechanism 00, and the third oil collecting component A3 can be fixed with an oil guide plate 40 through a bolt 41. The tenth oil channel 010 is in communication with the third oil collecting component A3. One end of the eleventh oil channel 011 is connected to the tenth oil channel 010, and the other end extends to the front end position of the second bearing chamber.

[0069] In the above implementation process, when the vehicle drives backward, the lubricating oil is splashed into the third oil collecting component A3 under the rotation of the intermediate shaft system 20, and then provides lubrication to the front end of the input shaft system 10 through the tenth oil channel 010 and to the front end of the intermediate shaft system 20 through the eleventh oil channel 011, achieving passive lubrication, and the lubrication effect can be optimal, improving the reliability of the reducer structure and prolonging the service life. At the same time, the manufacturing process of the third oil collecting component A3, the tenth oil channel 010 and the eleventh oil channel 011 only involves casting and simple machining, effectively reducing the production cost.

[0070] In some embodiments, the housing mechanism 00 is also provided with a first oil guide groove B1, a second oil guide groove B2 and a third oil guide groove B3. The first oil guide groove B1, the second oil guide groove B2 and the third oil guide groove B3 are located on the same side of the housing mechanism 00, and the first oil guide groove B1 is in communication with the first bearing chamber, the second oil guide groove B2 is in communication with the second bearing chamber, and the third oil guide groove B3 is in communication with the third bearing chamber.

[0071] In the above implementation process, by arranging the first oil guide groove B1, the second oil guide groove B2 and the third oil guide groove B3 on one side of the housing mechanism 00, the lubricating oil on the inner wall of the housing mechanism 00 can be collected, the lubrication of the input shaft system 10, the intermediate shaft system 20 and the output shaft system 30 is achieved, passive lubrication is achieved, and the lubrication effect can be optimal, improving the reliability of the reducer structure and prolonging the service life. At the same time, the first oil guide groove B1, the second oil guide groove B2 and the third oil guide groove B3 are directly cast in the housing mechanism 00, and the structure is simple and direct.

[0072] In some embodiments, the housing mechanism 00 is further provided with a fourth oil guide groove B4, a fifth oil guide groove B5 and a sixth oil guide groove B6, the fourth oil guide groove B4 is located on the side of the housing mechanism away from the first oil guide groove B1, the fourth oil guide groove B4, the fifth oil guide groove B5 and the sixth oil guide groove B6 are located on the same side of the housing mechanism 00, the fourth oil guide groove B4 is in communication with the first bearing chamber, the fifth oil guide groove B5 is in communication with the second bearing chamber, and the sixth oil guide groove B6 is in communication with the third bearing chamber.

[0073] In the above implementation process, by arranging the fourth oil guide groove B4, the fifth oil guide groove B5 and the sixth oil guide groove B6 on one side of the housing mechanism 00, the lubricating oil on the inner wall of the housing mechanism 00 can be collected, the lubrication of the input shaft system 10, the intermediate shaft system 20 and the output shaft system 30 is realized, passive lubrication is realized, the lubrication effect can be optimized, the reliability of the reducer structure is improved, and the service life is prolonged. The fourth oil guide groove, the fifth oil guide groove and the sixth oil guide groove are directly cast in the housing mechanism 00, and the structure is simple and direct.

[0074] In some embodiments, the center of the second bearing chamber is located above the line connecting the centers of the first bearing chamber and the third bearing chamber, that is, the intermediate shaft system 20 adopts an upper arrangement scheme. Compared with the lower arrangement scheme of the intermediate shaft system 20, the lubrication effect can be improved, the reliability of the equipment can be improved, and the service life can be prolonged.

[0075] In a second aspect, the application also provides a dual-motor assembly comprising the reducer structure as described above.

[0076] Since the dual-motor assembly provided in the second aspect comprises the reducer structure, the dual-motor assembly has all the technical effects of the reducer structure, which will not be described here.

[0077] In a third aspect, the application also provides a vehicle comprising the dual-motor assembly as described above. The vehicle can be a fuel automobile, a gas automobile or a new energy automobile, and the new energy automobile can be a pure electric automobile, a hybrid electric automobile or a range extended automobile.

[0078] Since the vehicle provided in the third aspect comprises the dual-motor assembly, the vehicle has all the technical effects of the dual-motor assembly, which will not be described here.

[0079] In all embodiments of the application, "large", "small", "many", "few", "upper" and "lower" are relative, and the description of such relative terms will not be described here.

[0080] It should be understood that, throughout the specification, "in an embodiment", "in the embodiment" or "as an optional implementation" mentioned in the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, "in an embodiment", "in the embodiment" or "as an optional implementation" appearing throughout the specification does not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. Those skilled in the art should also know that the embodiments described in the specification are optional embodiments, and the actions and modules involved are not necessarily required by the present application.

[0081] In various embodiments of the present application, it should be understood that the size of the sequence number of each process described above does not mean the inevitable sequence of execution order, and the execution order of each process should be determined according to its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0082] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A reducer structure characterized by, The housing mechanism is provided with a first bearing chamber, a second bearing chamber, a third bearing chamber, a first oil collection assembly, a second oil collection assembly and a third oil collection assembly. The first bearing chamber is configured to assemble an input shaft system. The second bearing chamber is configured to assemble an intermediate shaft system. The third bearing chamber is configured to assemble an output shaft system. The first oil collection assembly includes a first part and a second part. The first part is in communication with the first bearing chamber and the second bearing chamber. The second part is in communication with the first bearing chamber, the second bearing chamber and the third bearing chamber. The second oil collection assembly is located on the opposite side of the housing mechanism relative to the first oil collection assembly and is in communication with the first bearing chamber. The third oil collection assembly is located on the same side of the housing mechanism relative to the first oil collection assembly and is in communication with the first bearing chamber and the second bearing chamber. When the vehicle travels forward, the input shaft system rotates counterclockwise, the intermediate shaft system rotates clockwise, and the output shaft system rotates counterclockwise. Lubricating oil enters the first oil collection assembly through the output shaft system, so that the lubricating oil provides lubrication for the front end of the intermediate shaft system and the front end of the input shaft system through the first part, and provides lubrication for the rear end of the intermediate shaft system, the rear end of the output shaft system and the rear end of the input shaft system through the second part. At the same time, lubricating oil flies out at the meshing part of the input shaft system rotating counterclockwise and the intermediate shaft system rotating counterclockwise and enters the second oil collection assembly, so that the lubricating oil provides lubrication for the rear end of the input shaft system. When the vehicle travels backward, the input shaft system rotates clockwise, the intermediate shaft system rotates counterclockwise, and the output shaft system rotates clockwise. Lubricating oil provides lubrication for the front end of the input shaft system and the front end of the intermediate shaft system through the third oil collection assembly. The first oil collection assembly includes a first oil collection member, a first oil channel, a second oil channel, a third oil channel, a fourth oil channel, a fifth oil channel, a sixth oil channel and a seventh oil channel. The first oil collection member is integrated in the housing mechanism. The first oil channel is in communication with one side of the first oil collection member. The second oil channel is in communication with the first oil channel. The second oil channel extends to the front end position of the second bearing chamber from the side away from the first oil channel. One end of the third oil channel is in communication with the second bearing chamber, and the other end of the third oil channel extends to the front end position of the first bearing chamber. The fourth oil channel is in communication with the other side of the first oil collection member. The fifth oil channel is in communication with the fourth oil channel. The fifth oil channel extends to the rear end position of the second bearing chamber from the side away from the fourth oil channel. One end of the sixth oil channel is in communication with the second bearing chamber, and the other end of the sixth oil channel extends to the rear end position of the first bearing chamber. One end of the seventh oil channel is in communication with the second bearing chamber, and the other end of the seventh oil channel extends to the rear end position of the third bearing chamber. The second oil channel is inclinedly distributed along a preset angle.

2. The speed reducer structure according to claim 1, characterized by The height of the third oil channel connected to the second bearing chamber is higher than the height of the second oil channel connected to the second bearing chamber.

3. The speed reducer structure according to claim 2, characterized by ​ 4. The speed reducer structure according to claim 3, characterized by ​ 5. The speed reducer structure according to claim 2, characterized by The first oil collecting member includes a first oil collecting edge and a second oil collecting edge, the first oil collecting edge is connected to the second oil collecting edge, and the other ends of the first oil collecting edge and the second oil collecting edge extend in a direction away from each other to form a first oil collecting groove, wherein the first oil collecting edge forms a first gap with the intermediate shaft system, and the second oil collecting edge forms a second gap with the output shaft system.

6. The speed reducer structure according to claim 1, characterized by The second oil collecting assembly includes a second oil collecting member, an eighth oil channel and a ninth oil channel, the second oil collecting member is integrated in the housing mechanism, the eighth oil channel is in communication with the second oil collecting member, and one end of the ninth oil channel is connected to the eighth oil channel, and the other end of the ninth oil channel extends to the rear end position of the first bearing chamber.

7. The speed reducer structure according to claim 6, characterized by The second oil collecting member is located on the side of the housing mechanism close to the first bearing chamber to collect the lubricating oil splashed from the meshing position of the input shaft system and the intermediate shaft system during vehicle operation.

8. The speed reducer structure according to claim 1, characterized by The third oil collecting assembly includes a third oil collecting member, a tenth oil channel and an eleventh oil channel, the third oil collecting member is integrated in the housing mechanism, the tenth oil channel is in communication with the third oil collecting member, and one end of the eleventh oil channel is connected to the tenth oil channel, and the other end of the eleventh oil channel extends to the front end position of the second bearing chamber.

9. The speed reducer structure according to claim 1, characterized by The housing mechanism is further provided with a first oil guide groove, a second oil guide groove and a third oil guide groove, the first oil guide groove, the second oil guide groove and the third oil guide groove are located on the same side of the housing mechanism, and the first oil guide groove is in communication with the first bearing chamber, the second oil guide groove is in communication with the second bearing chamber, and the third oil guide groove is in communication with the third bearing chamber.

10. The speed reducer structure according to claim 9, characterized by The housing mechanism is further provided with a fourth oil guide groove, a fifth oil guide groove and a sixth oil guide groove, the fourth oil guide groove is located on the side of the housing mechanism away from the first oil guide groove, the fourth oil guide groove, the fifth oil guide groove and the sixth oil guide groove are located on the same side of the housing mechanism, the fourth oil guide groove is in communication with the first bearing chamber, the fifth oil guide groove is in communication with the second bearing chamber, and the sixth oil guide groove is in communication with the third bearing chamber.

11. The speed reducer structure according to any one of claims 1 to 10, characterized by The center of the second bearing chamber is located above the line connecting the centers of the first bearing chamber and the third bearing chamber.

12. A dual motor assembly, characterized by, The reducer structure comprises the double-motor assembly.

13. A vehicle characterized by comprising: The double-motor assembly comprises the reducer structure.

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