Speed reducer structure, dual-motor assembly and vehicle

Abstract

According to the speed reducer structure, the dual-motor assembly and the vehicle, when the vehicle runs forwards, 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 middle shaft system and the front end of the input shaft system through the first part; the rear end of the middle shaft system, the rear end of the output shaft system and the rear end of the input shaft system are lubricated through the second part, and meanwhile the lubricating oil flies out at the meshing position where the input shaft system rotates anticlockwise and the middle shaft system rotates anticlockwise and enters the second oil collecting assembly, so that the lubricating oil provides lubrication for the rear end of the input shaft system; when the vehicle travels backwards, the lubricating oil provides lubrication for the front end of the input shaft system and the front end of the middle shaft system through the third oil collecting assembly. Passive lubrication can be achieved in the whole process, it is guaranteed that the lubrication effect can be optimal whether a vehicle rotates forwards or reversely, the reliability of the speed reducer structure is improved, and the service life of the speed reducer structure is prolonged.

Description

Technical Field

[0001] The present application relates to the field of motor technology, and more specifically, to a reducer structure, a dual-motor assembly and a vehicle. Background Art

[0002] At present, with the rapid development of the new energy vehicle market, the demand for electric drive assembly in terms of integration and efficiency is getting 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 has also begun to flourish.

[0003] The dual-motor drive assembly has a higher degree of integration than the single-motor drive assembly, and the motor and reducer drive assembly are core components, so the requirements for the cooling and lubrication system are higher. In the prior art, the motor rotor and stator of the dual-motor drive assembly are forced to spray oil for cooling through internal oil circuits and oil pipes, and the reducer bearings and gears are splash-lubricated by stirring oil. This makes it difficult to control the lubricating oil flow of the two motors separately at the same time, and it is difficult to meet the different flow requirements when the motor loads are different, which easily leads to poor lubrication effect and is not conducive to improving the working efficiency of the cooling and lubrication system and the dual-motor drive assembly. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a reducer structure, a dual-motor assembly and a vehicle that can achieve passive lubrication, ensuring that the lubrication effect can be optimal regardless of whether the vehicle is rotating forward or reverse, thereby improving the reliability of the equipment and extending its service life.

[0005] In a first aspect, an embodiment of the present application provides a reducer structure, including: 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 be used for assembling an input shaft system, the second bearing chamber is configured to be used for assembling an intermediate shaft system, the third bearing chamber is configured to be used for assembling an output shaft system, the first oil collecting assembly includes a first part and a second part, the first part is communicated with the first bearing chamber and the second bearing chamber, the second part is communicated with the first bearing chamber, the second bearing chamber and the third bearing chamber, the second oil collecting assembly and the oil collecting assembly are located on opposite sides of the housing mechanism, and the second oil collecting assembly is communicated with the first bearing chamber, the third oil collecting assembly and the first oil collecting assembly are located on the same side of the housing mechanism, and the third oil collecting assembly is communicated with the first bearing chamber and the second bearing chamber; wherein

[0006] When the vehicle travels forward, the input shaft system rotates counterclockwise, the intermediate shaft system rotates clockwise, and the output shaft system rotates counterclockwise, and the lubricating oil enters the first oil collecting assembly through the output shaft system, so that the lubricating oil provides lubrication to the front end of the intermediate shaft system and the front end of the input shaft system through the first part, and provides lubrication to 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, and at the same time, the lubricating oil flies out at the meshing point where the input shaft system rotates counterclockwise and the intermediate shaft system rotates counterclockwise and enters the second oil collecting assembly, so that the lubricating oil provides lubrication to the rear end of the input shaft system;

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

[0008] In the above-mentioned implementation process, a first oil collecting assembly, a second oil collecting assembly and a third oil collecting assembly are arranged on the shell mechanism, so that when the vehicle travels forward, the output shaft system rotates counterclockwise and drives the lubricating oil to enter the first oil collecting assembly, and part of the lubricating oil, under the action of the first part, lubricates the front end of the intermediate shaft system and the front end of the input shaft system, and the other part of the lubricating oil, under the action of the second part, lubricates 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, and at the same time, 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 lubricate the rear end of the input shaft system; and when the vehicle travels backward, the front end of the input shaft system and the front end of the intermediate shaft system can be lubricated by the third oil collecting assembly, and the whole process can realize passive lubrication, ensuring that the lubrication effect can reach the best regardless of whether the vehicle is in forward or reverse working conditions, thereby improving the reliability of the reducer structure and extending its service life.

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

[0010] In the above-mentioned implementation process, when the vehicle moves forward, the lubricating oil entering the first oil collecting piece, a part of the lubricating oil can provide lubrication to 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, and the other 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. Then the lubricating oil is divided into two again, one part of which provides lubrication to the rear end of the input shaft system through the sixth oil channel, and the other part provides lubrication to the rear end of the output shaft system through the seventh oil channel, which is beneficial 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, and extends the service life. At the same time, the manufacturing process of the first oil collecting piece and the first to seventh oil channels only involves casting and simple machining, which effectively reduces the production cost.

[0011] In some embodiments, the second oil passage is tilted and distributed along a preset angle, which is conducive to the flow of lubricating oil from the first oil passage to the second oil passage, and provides lubrication for the front end of the intermediate shaft system through the second oil passage, 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 passage is connected to the second bearing chamber is higher than the height at which the second oil passage is connected to the second bearing chamber, so as to 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 passage, and the lubrication effect is better.

[0013] In some embodiments, 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 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 and the intermediate shaft system form a first gap, and the second oil collecting edge and the output shaft system form a second gap.

[0014] In the above-mentioned implementation process, the first oil collecting edge is connected to the second oil collecting edge and extends in a direction away from each other to form a first oil collecting groove, which can ensure the collection of the lubricating oil, facilitate the lubricating oil to enter the corresponding oil channel, realize the lubrication of the input shaft system, the intermediate shaft system and the output shaft system, realize passive lubrication, and achieve the best lubrication effect, thereby improving the reliability of the reducer structure and extending its service life.

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

[0016] In the above-mentioned implementation process, when the vehicle moves forward, 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 piece along the inner wall of the housing mechanism, and then provides lubrication to the rear end of the input shaft system through the eighth oil channel and the ninth oil channel, thereby realizing passive lubrication, and the lubrication effect can be optimized, thereby improving the reliability of the reducer structure and extending its service life. At the same time, the manufacturing process of the second oil collecting piece, the eighth oil channel and the ninth oil channel only involves casting and simple machining, which effectively reduces the production cost.

[0017] In some embodiments, the second oil collecting member is located on a side of the housing mechanism close to the first bearing chamber, and is used to collect the lubricating oil splashed from the meshing position of the input shaft system and the intermediate shaft system when the vehicle is running. Passive lubrication of the rear end of the input shaft system is achieved, the lubrication effect can be optimized, the reliability of the reducer structure is improved, and its service life is extended.

[0018] In some embodiments, the third oil collecting assembly includes a third oil collecting part, a tenth oil channel and an eleventh oil channel, the third oil collecting part is integrated in the housing mechanism, the tenth oil channel is connected to the third oil collecting part, 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 above-mentioned implementation process, when the vehicle travels backward, the lubricating oil flies into the third oil collecting piece under the rotation of the intermediate shaft system, and then provides lubrication to the front end of the input shaft system through the tenth oil channel, and provides lubrication to the front end of the intermediate shaft system through the eleventh oil channel, thereby realizing passive lubrication, and the lubrication effect can be optimized, thereby improving the reliability of the reducer structure and extending its service life. At the same time, the manufacturing process of the third oil collecting piece, the tenth oil channel and the eleventh oil channel only involves casting and simple machining, which effectively reduces the production cost.

[0020] In some embodiments, 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 connected to the first bearing chamber, the second oil guide groove is connected to the second bearing chamber, and the third oil guide groove is connected to the third bearing chamber.

[0021] In the above-mentioned implementation process, by arranging the first oil guide groove, the second oil guide groove and the third oil guide groove on one side of the housing mechanism, the lubricating oil on the inner wall of the housing mechanism can be collected to realize the lubrication of the input shaft system, the intermediate shaft system and the output shaft system, and passive lubrication is realized. The lubrication effect can be optimized, the reliability of the reducer structure is improved, and its service life is extended. At the same time, the first oil guide groove, the second oil guide groove and the third oil guide groove are directly cast on the housing mechanism, and the structure is simple and direct.

[0022] In some embodiments, 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 connected to the first bearing chamber, the fifth oil guide groove is connected to the second bearing chamber, and the sixth oil guide groove is connected to the third bearing chamber.

[0023] In the above-mentioned implementation process, by arranging the fourth oil guide groove, the fifth oil guide groove and the sixth oil guide groove on one side of the housing mechanism, the lubricating oil on the inner wall of the housing mechanism can be collected to realize the lubrication of the input shaft system, the intermediate shaft system and the output shaft system, and passive lubrication is realized. The lubrication effect can be optimized, the reliability of the reducer structure is improved, and its service life is extended. At the same time, the fourth oil guide groove, the fifth oil guide groove and the sixth oil guide groove are directly cast on the housing mechanism, and 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, which can improve the lubrication effect, improve the reliability of the equipment, and extend the service life.

[0025] In a second aspect, the present application also provides a dual-motor assembly, comprising a reducer structure as described in any of the above items.

[0026] Since the dual motor assembly provided in the second aspect includes a reducer structure, the dual motor assembly has all the technical effects of the reducer structure and will not be elaborated here.

[0027] In a third aspect, the present application also provides a vehicle comprising the dual motor assembly as described above.

[0028] Since the vehicle provided in the third aspect includes a dual motor assembly, the vehicle has all the technical effects of the dual motor assembly and will not be elaborated here.

[0029] Other features and advantages of the present disclosure will be set forth in the following description, or some features and advantages may be inferred or unambiguously determined from the description, or may be learned by implementing the above-mentioned technology of the present disclosure.

[0030] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 A schematic diagram of the structure of one side of the reducer structure provided in an embodiment of the present application;

[0033] Figure 2 A schematic diagram of the structure of the other side of the reducer structure provided in an embodiment of the present application;

[0034] Figure 3 A cross-sectional view of a reducer structure provided in an embodiment of the present application;

[0035] Figure 4 A schematic diagram of the structure of the housing structure of the reducer structure provided in an embodiment of the present application;

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

[0037] Figure 6 Schematic diagram of the lubrication principle on the other side of the reducer provided in an embodiment of the present application.

[0038] Reference numerals

[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, bolts;

[0040] A1, first oil collecting part; 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, the second oil collection part; 008, the eighth oil passage; 009, the ninth oil passage;

[0042] A3, the third oil collection part; 010, the tenth oil passage; 011, the 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 in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application described and shown in the drawings here 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 application claimed for protection, but merely represents the 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 making creative work belong to 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 positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used 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, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0047] In addition, the terms "installed", "set", "provided with", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or a point connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to 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 specified, "plurality" means two or more.

[0049] Example

[0050] The driving system of automobiles, especially electric vehicles, mainly includes single-motor centralized drive and multi-motor distributed drive. Since the single-motor centralized drive uses a differential to drive the left and right half-axles of the vehicle respectively, it is impossible to adjust the driving force of the vehicle wheels separately, and the multi-motor distributed drive structure is complex.

[0051] In order to simplify the structure, cars without differentials have gradually appeared on the market. For example, in the design process of the dual-motor drive reducer of a pure electric vehicle, the inventor found that there are some technical challenges that need to be overcome in the dual-motor reducer. First, the passive lubrication scheme arranged on the intermediate shaft often fails to achieve the ideal lubrication effect, which may lead to a decrease in mechanical performance and an increase in maintenance costs. Secondly, although the active lubrication scheme can provide better lubrication effects, its design is usually more complicated, which not only increases the difficulty of production, but also increases costs. Therefore, the development of a lubrication system that can both effectively lubricate and be economical is crucial to the reliability and economy of the dual-motor reducer.

[0052] In view of this, if Figure 1-Figure 6As shown, in the first aspect, an embodiment of the present application provides a reducer structure, including: a housing mechanism 00, the housing mechanism 00 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 be used for assembling an input shaft system 10, the second bearing chamber is configured to be used for assembling an intermediate shaft system 20, the third bearing chamber is configured to be used for assembling an output shaft system 30, the first oil collecting assembly includes a first part and a second part, the first part is communicated with the first bearing chamber and the second bearing chamber, the second part is communicated with the first bearing chamber, the second bearing chamber and the third bearing chamber, the second oil collecting assembly and the oil collecting assembly are located on opposite sides of the housing mechanism 00, and the second oil collecting assembly is communicated with the first bearing chamber, the third oil collecting assembly and the first oil collecting assembly are located on the same side of the housing mechanism 00, and the third oil collecting assembly is communicated with the first bearing chamber and the second bearing chamber; wherein

[0053] When the vehicle travels forward, the input shaft system 10 rotates counterclockwise, the intermediate shaft system 20 rotates clockwise, and the output shaft system 30 rotates counterclockwise, and the lubricating oil enters the first oil collecting assembly through the output shaft system 30, so that the lubricating oil provides lubrication to 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 to 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, and at the same time, the lubricating oil flies out from the meshing point where the input shaft system 10 rotates counterclockwise and the intermediate shaft system 20 rotates counterclockwise and enters the second oil collecting assembly, so that the lubricating oil provides lubrication to the rear end of the input shaft system 10;

[0054] When the vehicle travels 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 to the front end of the input shaft system 10 and the front end of the intermediate shaft system 20 through the third oil collecting assembly.

[0055] Exemplarily, the reducer structure provided in the present application is provided with a first oil collecting assembly, a second oil collecting assembly and a third oil collecting assembly, which can be used to achieve passive lubrication of the input shaft system 10, the intermediate shaft system 20 and the output shaft system 30. Combined with the active lubrication of the reducer structure (i.e., lubrication by sucking in lubricating oil using a driving pump), it can ensure that the lubrication effect is 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, and the input shaft is configured to be distributed along the front-to-back direction, 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, so as to install the input shaft on 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, and the intermediate shaft is distributed along the front-to-back direction, 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, the intermediate shaft rear bearing 22, the primary driven gear 23 and the secondary driving gear 24 The bearing 21 is located at the front end of the intermediate shaft, the intermediate shaft rear bearing 22 is located at the rear end of the intermediate shaft, and the primary driven gear 23 is used to mesh 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 configured to be distributed along the front-to-back direction, 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 to mesh with the secondary driving gear 24, wherein the circulation of lubricating oil through the above-mentioned first oil collecting assembly, the second oil collecting assembly and the third oil collecting assembly can be used to lubricate 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-mentioned 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 travels forward, the output shaft system 30 rotates counterclockwise and drives the lubricating oil to enter the first oil collecting assembly, and part of the lubricating oil, under the action of the first part, lubricates the front end of the intermediate shaft system 20 and the front end of the input shaft system 10, and the other part of the lubricating oil, under the action of the second part, lubricates 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, and at the same time, 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 to lubricate the rear end of the input shaft system 10; and when the vehicle travels backward, the front end of the input shaft system 10 and the front end of the intermediate shaft system 20 can be lubricated by the third oil collecting assembly, and the whole process can realize passive lubrication, ensuring that the lubrication effect can reach the best regardless of whether the vehicle is in forward or reverse working conditions, thereby improving the reliability of the reducer structure and extending its service life.

[0058] like Figure 1 , Figure 2 , Figure 4 as well as Figure 5 As 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 communicated with one side of the first oil collecting member A1, the second oil passage 002 is communicated with the first oil passage 001, the second oil passage 002 extends away from the side of the first oil passage 001 to the front end position of the second bearing chamber, and one end of the third oil passage 003 is communicated with the second bearing chamber , the other end of which extends to the front end position of the first bearing chamber, the fourth oil passage 004 is communicated with the other side of the first oil collecting member A1, the fifth oil passage 005 is communicated with the fourth oil passage 004, and the side of the fifth oil passage 005 away from the fourth oil passage 004 extends to the rear end position of the second bearing chamber, one end of the sixth oil passage 006 is communicated with the second bearing chamber, and the other end of it extends to the rear end position of the first bearing chamber, one end of the seventh oil passage 007 (for example, at 17° and above) is communicated with the second bearing chamber, and the other end of it extends to the rear end position of the third bearing chamber.

[0059] Exemplarily, the secondary driven gear 33 rotates counterclockwise to drive the lubricating oil at the bottom of the housing mechanism 00 to enter 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 above implementation process, when the vehicle moves forward, the lubricating oil entering the first oil collecting member A1, a part of the lubricating oil 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) under the action of the first oil passage 001, the second oil passage 002 and the third oil passage 003, and the other part of the lubricating oil can lubricate the rear end of the intermediate shaft system 20 (i.e., the intermediate shaft rear bearing 22) under the action of the fourth oil passage 004 and the fifth oil passage 005, and then the lubricating oil is divided into two again, one part of which is One part provides lubrication for the rear end of the input shaft system 10 (i.e., the input shaft rear bearing 12) through the sixth oil passage 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 passage 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, and extends its service life. At the same time, the manufacturing process of the first oil collecting part A1 and the first oil passage 001 to the seventh oil passage 007 only involves casting and simple machining, which effectively reduces the production cost.

[0061] In some embodiments, the second oil passage 002 is tilted along a preset angle, for example, the second oil passage 002 is distributed at 17° to the horizontal plane of the vehicle, which is conducive to the flow of lubricating oil from the first oil passage 001 to the second oil passage 002, and provides lubrication for the front end of the intermediate shaft system 20 through the second oil passage 002, realizing passive lubrication and cooling, improving the reliability of the vehicle during operation, and extending the service life of the reducer structure.

[0062] In some embodiments, the height at which the third oil passage 003 is connected to the second bearing chamber is higher than the height at which the second oil passage 002 is connected to the second bearing chamber, which 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 passage 003, the front end of the input shaft system 10 can be lubricated, that is, the third oil passage 003 provides lubrication for the input shaft front bearing 11, and the lubrication effect is better.

[0063] like Figure 1 , Figure 2 as well as Figure 4The first oil collecting member 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 oil collecting edge and the second oil collecting edge extend in a direction away from each other to form a first oil collecting groove, for example, the first oil collecting member A1 is roughly V-shaped, and the angle between the first oil collecting edge and the second oil collecting edge is not specifically limited, wherein the first oil collecting edge and the intermediate shaft system 20 form a first gap, and the second oil collecting edge and the output shaft system 30 form a second gap, such as the secondary driving gear 24 is located on the outside of the first oil collecting edge and is spaced about 2mm from the first oil collecting edge, and the tooth top of the secondary driven gear 33 is located on the outside of the second oil collecting edge and is spaced about 2mm from the second oil collecting edge.

[0064] In the above-mentioned implementation process, the first oil collecting edge is connected to the second oil collecting edge and extends in a direction away from each other to form a first oil collecting groove, which can ensure the collection of the lubricating oil, facilitate the lubricating oil to enter the corresponding oil channel, realize the lubrication of the input shaft system 10, the intermediate shaft system 20 and the output shaft system 30, realize passive lubrication, and achieve the best lubrication effect, thereby improving the reliability of the reducer structure and extending its service life.

[0065] In some embodiments, the second oil collecting assembly includes a second oil collecting component A2, an eighth oil passage 008 and a ninth oil passage 009, the second oil collecting component A2 is integrated in the housing mechanism 00, and the second oil collecting component A2 and the inner wall of the housing mechanism 00 are distributed at an angle to enclose a second oil collecting tank, the eighth oil passage 008 is communicated with the second oil collecting component A2, one end of the ninth oil passage 009 is connected to the eighth oil passage 008, and the other end thereof extends to the rear end position of the first bearing chamber.

[0066] In the above-mentioned implementation process, when the vehicle moves forward, the lubricating oil flies out at the meshing position of the input shaft system 10 and the intermediate shaft system 20, that is, the meshing position of the first-stage driving gear 13 and the first-stage driven gear 23, and enters the second oil collecting piece A2 along the inner wall of the housing mechanism 00, and then provides lubrication to the rear end of the input shaft system 10 through the eighth oil passage 008 and the ninth oil passage 009, that is, the lubricating oil in the ninth oil passage 009 provides lubrication for the input shaft rear bearing 12, realizing passive lubrication, and the lubrication effect can be optimized, thereby improving the reliability of the reducer structure and extending its service life. At the same time, the manufacturing process of the second oil collecting piece A2, the eighth oil passage 008 and the ninth oil passage 009 only involves casting and simple machining, which effectively reduces the production cost.

[0067] In some embodiments, the second oil collecting member A2 is located on one side of the housing mechanism 00 close to the first bearing chamber, and is used to collect the lubricating oil splashed out from the meshing position of the input shaft system 10 and the intermediate shaft system 20 when the vehicle is running. Passive lubrication of the rear end of the input shaft system 10 is achieved, and the lubrication effect can be optimized, thereby improving the reliability of the reducer structure and extending its service life.

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

[0069] In the above-mentioned implementation process, when the vehicle travels backward, the lubricating oil flies into the third oil collecting piece 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 provides lubrication to the front end of the intermediate shaft system 20 through the eleventh oil channel 011, thereby realizing passive lubrication, and the lubrication effect can be optimized, thereby improving the reliability of the reducer structure and extending its service life. At the same time, the manufacturing process of the third oil collecting piece A3, the tenth oil channel 010 and the eleventh oil channel 011 only involves casting and simple machining, which effectively reduces the production cost.

[0070] In some embodiments, the housing mechanism 00 is further 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 connected to the first bearing chamber, the second oil guide groove B2 is connected to the second bearing chamber, and the third oil guide groove B3 is connected to the third bearing chamber.

[0071] In the above-mentioned implementation process, by setting 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 to achieve lubrication of the input shaft system 10, the intermediate shaft system 20 and the output shaft system 30, thereby realizing passive lubrication, and the lubrication effect can be optimized, thereby improving the reliability of the reducer structure and extending its 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 on 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, and 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 connected to the first bearing chamber, the fifth oil guide groove B5 is connected to the second bearing chamber, and the sixth oil guide groove B6 is connected to the third bearing chamber.

[0073] In the above-mentioned implementation process, by setting 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 to achieve lubrication of the input shaft system 10, the intermediate shaft system 20 and the output shaft system 30, thereby realizing passive lubrication, and the lubrication effect can be optimized, thereby improving the reliability of the reducer structure and extending its service life. At the same time, the fourth oil guide groove, the fifth oil guide groove and the sixth oil guide groove are directly cast on 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 placement solution, which can improve the lubrication effect, improve the reliability of the equipment, and extend the service life compared to the lower placement solution of the intermediate shaft system 20.

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

[0076] Since the dual motor assembly provided in the second aspect includes a reducer structure, the dual motor assembly has all the technical effects of the reducer structure and will not be elaborated here.

[0077] In a third aspect, the present application further provides a vehicle, including the dual motor assembly as described above, wherein the vehicle may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended range vehicle, etc.

[0078] Since the vehicle provided in the third aspect includes a dual motor assembly, the vehicle has all the technical effects of the dual motor assembly and will not be elaborated here.

[0079] In all the embodiments of the present application, "big" and "small" are relative, "more" and "less" are relative, and "up" and "down" are relative. The expressions of such relative terms are not elaborated in the embodiments of the present application.

[0080] It should be understood that the "in this embodiment", "in the embodiment of the present application" or "as an optional implementation" mentioned throughout 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 this embodiment", "in the embodiment of the present application" 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 be aware that the embodiments described in the specification are all optional embodiments, and the actions and modules involved are not necessarily required for the present application.

[0081] In the various embodiments of the present application, it should be understood that the size of the serial numbers of the above-mentioned processes does not necessarily mean the order of execution. The execution order of each process should be determined by its function and internal 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. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A reducer structure, characterized in that: include: A housing mechanism, wherein 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, wherein the first bearing chamber is configured to be used for assembling an input shaft system, the second bearing chamber is configured to be used for assembling an intermediate shaft system, and the third bearing chamber is configured to be used for assembling 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 and the oil collecting assembly are 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 and the first oil collecting assembly are located on the same side of the housing mechanism, and the third oil collecting assembly is in communication with the first bearing chamber and the second bearing chamber; in When the vehicle travels forward, the input shaft system rotates counterclockwise, the intermediate shaft system rotates clockwise, and the output shaft system rotates counterclockwise, and the lubricating oil enters the first oil collecting assembly through the output shaft system, so that the lubricating oil provides lubrication to the front end of the intermediate shaft system and the front end of the input shaft system through the first part, and provides lubrication to 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, and at the same time, the lubricating oil flies out at the meshing point where the input shaft system rotates counterclockwise and the intermediate shaft system rotates counterclockwise and enters the second oil collecting assembly, so that the lubricating oil provides lubrication to the rear end of the input shaft system; When the vehicle travels backward, the input shaft rotates clockwise, the intermediate shaft rotates counterclockwise, and the output shaft rotates clockwise, and the lubricating oil provides lubrication to the front end of the input shaft and the front end of the intermediate shaft through the third oil collecting assembly.

2. The reducer structure according to claim 1, characterized in that: The first oil collecting assembly includes a first oil collecting member, a first oil passage, a second oil passage, a third oil passage, a fourth oil passage, a fifth oil passage, a sixth oil passage and a seventh oil passage. The first oil collecting member is integrated in the housing mechanism, the first oil passage is communicated with one side of the first oil collecting member, the second oil passage is communicated with the first oil passage, the second oil passage extends from a side of the first oil passage to the front end position of the second bearing chamber, one end of the third oil passage is communicated with the second bearing chamber, and the other end thereof extends to the front end position of the first bearing chamber, the fourth oil passage is communicated with the other side of the first oil collecting member, the fifth oil passage is communicated with the fourth oil passage, the side of the fifth oil passage away from the fourth oil passage extends to the rear end position of the second bearing chamber, one end of the sixth oil passage is communicated with the second bearing chamber, and the other end thereof extends to the rear end position of the first bearing chamber, and one end of the seventh oil passage is communicated with the second bearing chamber, and the other end thereof extends to the rear end position of the third bearing chamber.

3. The reducer structure according to claim 2, characterized in that: The second oil passages are distributed obliquely along a preset angle.

4. The reducer structure according to claim 3, characterized in that: The height at which the third oil passage is connected to the second bearing chamber is higher than the height at which the second oil passage is connected to the second bearing chamber.

5. The reducer structure according to claim 2, characterized in that: 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 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 and the intermediate shaft system form a first gap, and the second oil collecting edge and the output shaft system form a second gap.

6. The reducer structure according to claim 1, characterized in that: The second oil collecting assembly includes a second oil collecting part, an eighth oil passage and a ninth oil passage. The second oil collecting part is integrated in the housing mechanism. The eighth oil passage is communicated with the second oil collecting part. One end of the ninth oil passage is connected to the eighth oil passage, and the other end thereof extends to the rear end position of the first bearing chamber.

7. The reducer structure according to claim 6, characterized in that: The second oil collecting member is located on a side of the housing mechanism close to the first bearing chamber, and is used to collect lubricating oil splashed out from the meshing position of the input shaft system and the intermediate shaft system when the vehicle is running.

8. The reducer structure according to claim 1, characterized in that: The third oil collecting assembly includes a third oil collecting part, a tenth oil channel and an eleventh oil channel. The third oil collecting part is integrated in the housing mechanism. The tenth oil channel is connected to the third oil collecting part. 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.

9. The reducer structure according to claim 1, characterized in that: The housing mechanism is also 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 connected to the first bearing chamber, the second oil guide groove is connected to the second bearing chamber, and the third oil guide groove is connected to the third bearing chamber.

10. The reducer structure according to claim 9, characterized in that: The housing mechanism is also 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, and 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 connected to the first bearing chamber, the fifth oil guide groove is connected to the second bearing chamber, and the sixth oil guide groove is connected to the third bearing chamber.

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

12. A dual motor assembly, characterized in that: It comprises a reducer structure as described in any one of claims 1 to 11.

13. A vehicle, characterized in that: Comprising the dual motor assembly as described in claim 12.

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