Speed reducer device, motor speed reducer assembly and vehicle
By designing the oil collecting tank and reducer housing into an integrated structure, the problems of complexity and high cost of assembly of new energy vehicle reducers are solved, and the effect of simplifying production and reducing costs is achieved.
Patent Information
- Application Number
- CN202420243634.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-31
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-01-31
AI Technical Summary
In existing new energy vehicle reducers, the increased number of parts of the oil storage box leads to cumbersome and complicated assembly operations, which increases assembly costs.
The oil collecting tank and reducer housing are designed as an integrated structure, eliminating the assembly process between the oil collecting tank and reducer housing, and simplifying the production and assembly process.
Through integrated design, the integration of the oil collecting tank and the reducer housing is improved, the production process is simplified, the production costs are reduced, and the structural stability and reliability are improved.
Smart Images
Figure CN222185717U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of reducers, and in particular to a reducer device, a motor reducer assembly and a vehicle. Background Art
[0002] With the continuous development of social economy, cars, as the most commonly used means of transportation for people, are becoming more and more common in people's lives. Among them, new energy vehicles use motors as their power source, which have low operating costs, no exhaust emissions, and are environmentally friendly. As people's environmental awareness continues to increase, new energy vehicles are becoming more and more popular.
[0003] New energy vehicles usually include a motor and a reducer, and lubricating oil is usually provided in the reducer to lubricate the moving components (such as gears and bearings, etc.) in the reducer. Usually, in order to improve the overall lubrication effect of the high-position bearing, an oil collecting chamber is usually provided in the reducer cavity, and the oil collecting chamber is used to store lubricating oil so that the parts that are not easy to lubricate can maintain efficient lubrication. At present, in the relevant technology, an oil storage box is usually installed separately in the reducer housing to store the lubricating oil, so as to maintain a good lubrication state in the reducer.
[0004] However, in the above-mentioned reducer, the oil storage box increases the number of components of the reducer, making the overall assembly of the reducer more cumbersome and complicated, and increasing the assembly cost of the reducer. Utility Model Content
[0005] In view of this, the utility model provides a reducer device and a vehicle, which can save the assembly process between the oil collecting tank and the reducer housing, simplify the production and assembly of the reducer device, and reduce the production cost of the reducer device.
[0006] In order to achieve the above-mentioned purpose, the technical solution of the embodiment of the present application is implemented as follows:
[0007] A first aspect of the present application provides a reducer device for connecting to a motor, comprising a reducer housing and a gear assembly located in the reducer housing;
[0008] The inner wall of the reducer housing is provided with an oil collecting groove, the gear assembly comprises at least a primary driving gear and a secondary driven gear, the oil collecting groove is located between the primary driving gear and the secondary driven gear, and is arranged close to the primary driving gear and the secondary driven gear above;
[0009] The oil collecting tank and the reducer housing are an integrated structure.
[0010] The embodiment of the present application makes the oil collecting tank and the reducer housing an integrated structure, which can improve the integration between the oil collecting tank and the reducer housing, eliminate the assembly process between the oil collecting tank and the reducer housing, simplify the production and assembly of the reducer device, and reduce the production cost of the reducer device.
[0011] In a possible implementation, the reducer housing includes a first housing and a second housing that are detachably connected;
[0012] A first baffle wall component is disposed on the inner wall of the first shell, and a second baffle wall component is disposed on the inner wall of the second shell. The first baffle wall component and the second baffle wall component jointly surround the oil collecting tank.
[0013] In a possible implementation, the first housing is disposed close to the motor and connected to the housing of the motor;
[0014] The second housing is located on a side of the first housing facing away from the motor;
[0015] A first through hole is further formed on the inner wall of the first shell. The first through hole is located in the oil collecting groove and is connected to the cavity of the motor. The oil collecting groove is connected to the cavity of the motor through the first through hole.
[0016] In a possible implementation, a second through hole is further formed on the second retaining wall, a bearing oil collecting chamber of a primary driving gear is formed on the second housing, and the second through hole is communicated with the bearing oil collecting chamber.
[0017] In a possible implementation, the oil collecting groove is in an inverted trapezoidal shape, and the first through hole and the second through hole are both arranged close to the bottom wall of the oil collecting groove.
[0018] In a possible implementation, the oil collecting tank has an oil inlet on a side close to the secondary driven gear, and the lubricating oil in the reducer housing enters the oil collecting tank through the oil inlet.
[0019] In a possible implementation, a third through hole is further provided on the reducer housing, the third through hole is arranged near the bottom of the reducer housing, and the third through hole is communicated with the motor cavity.
[0020] A second aspect of the present application provides a motor reducer assembly, comprising a motor and any of the above reducer devices;
[0021] The motor comprises a motor housing, and the reducer housing of the reducer device is connected to the motor housing.
[0022] In a possible implementation, it further includes an oil pump and a heat exchanger, wherein the oil pump and the heat exchanger are both located below the motor;
[0023] One end of the oil pump is communicated with the cavity of the motor housing, the other end of the oil pump is communicated with one end of the heat exchanger, and the other end of the heat exchanger is communicated with the reducer housing and the motor housing respectively.
[0024] A third aspect of the present application provides a vehicle, comprising the motor reducer assembly described above. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0026] Figure 1 A schematic diagram of the structure of a first housing of a reducer provided in an embodiment of the present application;
[0027] Figure 2 A schematic diagram of the structure of a second shell provided in an embodiment of the present application;
[0028] Figure 3 for Figure 1 Enlarged view of area A in the middle;
[0029] Figure 4 for Figure 2 Enlarged view of middle area B;
[0030] Figure 5 A schematic diagram of the structure of a motor reducer assembly provided in an embodiment of the present application.
[0031] Description of reference numerals:
[0032] 100-reducer device;
[0033] 110-reducer housing; 111-first housing; 1111-first baffle wall assembly;
[0034] 1112-first through hole; 112-second housing; 1121-second retaining wall assembly;
[0035] 1122-second through hole; 1123-bearing oil collecting chamber; 113-third through hole;
[0036] 120-oil collecting tank; 121-oil inlet;
[0037] 200-motor reducer assembly;
[0038] 300-motor; 310-motor housing;
[0039] 400-Oil pump;
[0040] 500-Heat exchanger. DETAILED DESCRIPTION
[0041] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the specific technical solution of the present application will be further described in detail below in conjunction with the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application, but are not used to limit the scope of the present application.
[0042] The embodiment of the present application provides a reducer device and a motor reducer assembly including the reducer device and a vehicle including the motor reducer assembly, wherein the vehicle may be a car, a bus, or a truck. For example, the vehicle may be any one of an electric vehicle / electric vehicle (Electric Vehicle; referred to as EV), a pure electric vehicle (Pure Electric Vehicle / Battery Electric Vehicle; referred to as PEV / BEV), a hybrid electric vehicle (Hybrid Electric Vehicle; referred to as HEV), a range extended electric vehicle (Range Extended Electric Vehicle; referred to as REEV), a plug-in hybrid electric vehicle (Plug-in Hybrid Electric Vehicle; referred to as PHEV), and a new energy vehicle (New Energy Vehicle).
[0043] As mentioned in the above background technology, lubricating oil is usually provided in the reducer to lubricate the moving components (e.g., gears and bearings, etc.) in the reducer. Usually, in order to improve the overall lubrication effect of the high-position bearing, an oil collecting chamber is usually provided in the reducer cavity, and the oil collecting chamber is used to store lubricating oil so that the parts that are not easy to lubricate can maintain efficient lubrication. At present, in the relevant technology, an oil storage box is usually installed separately in the reducer housing to store the lubricating oil, so as to maintain a good lubrication state in the reducer.
[0044] However, in the above-mentioned reducer, the oil storage box increases the number of components of the reducer, making the overall assembly of the reducer more cumbersome and complicated, and increasing the assembly cost of the reducer.
[0045] Based on the above problems, an embodiment of the present application provides a reducer device. By making the oil collecting tank and the reducer housing an integrated structure, the integration between the oil collecting tank and the reducer housing can be improved, the assembly process between the oil collecting tank and the reducer housing can be omitted, the production and assembly of the reducer device can be simplified, and the production cost of the reducer device can be reduced.
[0046] A reducer device provided in an embodiment of the present application is described in detail below with reference to the accompanying drawings.
[0047] Figure 1 A schematic structural diagram of a first housing of a reducer provided in an embodiment of the present application.
[0048] The present application embodiment provides a reducer device 100, see Figure 1 As shown, the reducer device 100 may include a reducer housing 110 and a gear assembly (not shown in the figure) located in the reducer housing 110. The gear assembly may include two sets of transmission gears, for example, a primary transmission gear and a secondary transmission gear. The primary transmission gear may include a primary driving gear and a primary driven gear meshing with each other. The secondary transmission gear may include a secondary driving gear and a secondary driven gear meshing with each other. The primary driving gear may be connected to the motor 300 (refer to Figure 5 The secondary driven gear can be connected to the axle, so that the power of the motor 300 can be transmitted to the axle after being decelerated by the gear assembly, so that the axle rotates, thereby driving the vehicle. Figure 1 As shown, the primary driving wheel can be mounted on the first mounting seat 130 of the reducer housing 110 , and the secondary driven wheel can be mounted on the second mounting seat 140 of the reducer housing 110 .
[0049] An oil collecting groove 120 may be provided on the inner wall of the reducer housing 110. The oil collecting groove 120 may be located between the primary driving gear and the secondary driven gear, and may be arranged close to the top of the primary driving gear and the secondary driven gear. Figure 1 As shown, the oil collecting tank 120 can be located between the first mounting seat 130 and the second mounting seat 140 and arranged close to the first mounting seat 130 and the second mounting seat 140. During the rotation of the secondary driven gear, the lubricating oil can be splashed and thrown into the oil collecting tank 120, so that the lubricating oil in the oil collecting tank 120 can provide lubrication for transmission parts such as gears and bearings at high places, so as to improve the uniformity of the lubrication of the reducer.
[0050] The oil collecting tank 120 and the reducer housing 110 may be an integrated structure, for example, the oil collecting tank 120 and the reducer housing 110 may be cast in an integrated manner. This can improve the integration between the oil collecting tank 120 and the reducer housing 110, save the assembly process between the oil collecting tank 120 and the reducer housing 110, simplify the production and assembly of the reducer device 100, and reduce the production cost of the reducer device 100.
[0051] Moreover, by making the oil collecting tank 120 and the reducer an integrated structure, the firmness and reliability of the connection between the oil collecting tank 120 and the reducer housing 110 can be improved, which can effectively reduce or prevent the oil collecting tank 120 from falling from the reducer housing 110, and help improve the overall structural stability of the reducer device 100.
[0052] Figure 2 A schematic diagram of the structure of a second shell provided in an embodiment of the present application is shown in FIG. Figure 3 for Figure 1 Magnified view of area A in the middle.
[0053] See also Figure 1 and Figure 2 As shown, the reducer housing 110 may include a first housing 111 and a second housing 112 that are detachably connected. The first housing 111 may have a first baffle wall assembly 1111 on its inner wall, and the second housing 112 may have a second baffle wall assembly 1121 on its inner wall. The first baffle wall assembly 1111 and the second baffle wall assembly 1121 may be jointly arranged to form an oil collecting tank 120.
[0054] For example, the first baffle wall assembly 1111 and the second baffle wall assembly 1121 may be opposite to each other, and when the first shell 111 and the second shell 112 are connected to each other, the first baffle wall assembly 1111 and the second baffle wall assembly 1121 may fit together to enclose the oil collecting tank 120 .
[0055] For example, the first retaining wall component 1111 and the second retaining wall component 1121 may both include a plurality of reinforcing ribs, and the plurality of reinforcing ribs may be collectively arranged to form the first retaining wall component 1111 and the second retaining wall component 1121 .
[0056] The first housing 111 may be disposed close to the motor 300 and connected to the housing of the motor 300, and the second housing 112 may be located on a side of the first housing 111 facing away from the motor 300. Figure 3 As shown, a first through hole 1112 may be opened on the inner wall of the first shell 111 , the first through hole 1112 may be located in the oil collecting tank 120 , and the first through hole 1112 may be connected to the cavity of the motor 300 , and the oil collecting tank 120 may be connected to the cavity of the motor 300 through the first through hole 1112 .
[0057] The lubricating oil in the reducer housing 110 can flow into the motor housing 310 through the first through hole 1112 after being collected in the oil collecting tank 120. The oil pump 400 can be connected to the motor housing 310, and the oil pump 400 can pump the lubricating oil in the motor housing 310 to pump the lubricating oil into the reducer housing 110 and the motor housing 310, thereby realizing the circulation of the lubricating oil.
[0058] Continue to see Figure 3 As shown, the oil collecting tank 120 may have an oil inlet 121 on one side close to the secondary driven gear, and the lubricating oil in the reducer housing 110 may enter the oil collecting tank 120 through the oil inlet 121. For example, the secondary driven gear may rotate counterclockwise as shown in the figure, and the secondary driven gear may carry the lubricating oil and throw it into the oil collecting tank 120 through the oil inlet 121 during the rotation, so that the lubricating oil can be collected in the oil collecting tank 120.
[0059] Figure 4 for Figure 2 Magnified view of area B in the middle.
[0060] See also Figure 4 As shown, one end of the primary driving gear can be rotatably connected to the first housing 111 through a bearing, and the other end can be rotatably connected to the second housing 112 through a bearing. The second housing 112 can be provided with a bearing oil collecting chamber 1123 of the primary driving gear, and a second through hole 1122 can be provided on the second retaining wall of the second housing 112, and the second through hole 1122 can be connected to the bearing oil collecting chamber 1123 on the second housing 112.
[0061] The lubricating oil in the oil collecting groove 120 can flow into the bearing oil collecting cavity 1123 through the second through hole 1122 to lubricate the bearing. This can effectively increase the amount of lubricating oil at the bearing and improve the lubrication effect on the bearing, thereby effectively preventing the bearing from wearing due to insufficient lubricating oil, and helping to increase the service life of the bearing.
[0062] Continue to see Figure 4 As shown, the oil collecting tank 120 may be in an inverted trapezoidal structure, which can facilitate the lubricating oil to flow to the bottom wall of the oil collecting tank 120, and can improve the collection rate of the lubricating oil. Among them, the first through hole 1112 and the second through hole 1122 can be arranged close to the bottom wall of the oil collecting tank 120. The lubricating oil on the bottom wall of the oil collecting tank 120 is relatively large, which can facilitate the flow of the first through hole 1112 and the second through hole 1122 into the motor 300 cavity and the bearing oil collecting cavity 1123.
[0063] Continue to see Figure 1As shown, the reducer housing 110 may also be provided with a third through hole 113, the third through hole 113 may be arranged near the bottom of the reducer housing 110, and the third through hole 113 may be connected to the cavity of the motor 300, and the bottom of the reducer housing 110 may also be connected to the cavity of the motor 300 through the third through hole 113. The lubricating oil in the reducer cavity and the lubricating oil in the motor housing 310 may circulate with each other through the third through hole 113. For example, when the lubricating oil level in the reducer housing 110 is higher than the lubricating oil level in the motor housing 310, the lubricating oil in the reducer housing 110 may flow into the motor housing 310 through the third through hole 113.
[0064] On the contrary, when the lubricating oil level in the motor housing 310 is higher than the lubricating oil level in the reducer housing 110, the lubricating oil in the motor housing 310 can flow into the reducer housing 110 through the third through hole 113, which can facilitate the distribution of the lubricating oil in the reducer housing 110 and the motor housing 310 and help improve the uniformity of the lubricating oil distribution.
[0065] Figure 5 A schematic diagram of the structure of a motor reducer assembly provided in an embodiment of the present application.
[0066] The embodiment of the present application also provides a motor reducer assembly 200, which may include a motor 300 and a reducer device 100 in any of the above scenarios, wherein the motor 300 may include a motor housing 310, and the reducer housing 110 in the reducer device 100 may be connected to the motor housing 310.
[0067] The motor 300 can transmit the torque to the reducer at a higher speed. The reducer can reduce the torque of the motor 300 and transmit the reduced torque to the axle to rotate the axle, thereby allowing the vehicle to travel.
[0068] The motor reducer assembly 200 may further include an oil pump 400 and a heat exchanger 500, and the oil pump 400 and the heat exchanger 500 may be both located below the motor 300. One end of the oil pump 400 may be connected to the cavity of the motor housing 310, and the other end of the oil pump 400 may be connected to one end of the heat exchanger 500. The other end of the heat exchanger 500 may be connected to the reducer housing 110 and the motor housing 310, respectively.
[0069] For example, the heat exchanger 500 can be connected to the motor housing 310 and the reducer housing 110 through two channels. The oil pump 400 can pump the lubricating oil in the motor housing 310 into the heat exchanger 500, and the heat exchanger 500 can dissipate heat and cool the lubricating oil, and then the cooled lubricating oil flows into the reducer housing 110 and the motor housing 310 through the two channels, so as to achieve lubrication of the motor 300 and the reducer.
[0070] After the lubricating oil in the reducer housing 110 is collected in the oil collecting tank 120 , a portion of it can flow into the motor housing 310 again through the first through hole 1112 , so that the oil pump 400 can pump the lubricating oil from the motor housing 310 .
[0071] The height dimension of the motor 300 is relatively small relative to the height dimension of the reducer. By arranging the oil pump 400 and the heat exchanger 500 below the motor 300, the space below the motor 300 can be utilized, which can effectively reduce the impact of the oil pump 400 and the heat exchanger 500 on the overall size of the motor reducer assembly 200, and the height of the oil pump 400 and the heat exchanger 500 from the ground can be reduced.
[0072] Moreover, by arranging the heat exchanger 500 below the motor 300, the passage between the heat exchanger 500 and the motor housing 310 and the reducer housing 110 can be relatively short, which can effectively reduce the design length of the overall oil circuit and help reduce the oil circuit cost.
[0073] In the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, unless otherwise specified, "plurality" means two or more groups.
[0074] In addition, in the embodiments of the present application, directional terms such as "up", "down", "left" and "right" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they may change accordingly according to the changes in the orientation of the components in the drawings.
[0075] In the embodiments of the present application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium.
[0076] In the embodiments of the present application, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.
[0077] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.
[0078] The serial numbers of the embodiments of the present application are only for description and do not represent the advantages and disadvantages of the embodiments. The above are only preferred embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.
Claims
1. A reducer device, used to connect with a motor, characterized in that: It includes a reducer housing and a gear assembly located in the reducer housing; The inner wall of the reducer housing is provided with an oil collecting groove, the gear assembly comprises at least a primary driving gear and a secondary driven gear, the oil collecting groove is located between the primary driving gear and the secondary driven gear, and is arranged close to the primary driving gear and the secondary driven gear above; The oil collecting tank and the reducer housing are an integrated structure.
2. The reducer device according to claim 1, characterized in that: The reducer housing comprises a first housing and a second housing that are detachably connected; A first baffle wall component is disposed on the inner wall of the first shell, and a second baffle wall component is disposed on the inner wall of the second shell. The first baffle wall component and the second baffle wall component jointly surround the oil collecting tank.
3. The reducer device according to claim 2, characterized in that: The first housing is arranged close to the motor and connected to the housing of the motor; The second housing is located on a side of the first housing facing away from the motor; A first through hole is further formed on the inner wall of the first shell. The first through hole is located in the oil collecting groove and is connected to the cavity of the motor. The oil collecting groove is connected to the cavity of the motor through the first through hole.
4. The reducer device according to claim 3, characterized in that: The second retaining wall is further provided with a second through hole, the second housing is provided with a bearing oil collecting chamber of a primary driving gear, and the second through hole is communicated with the bearing oil collecting chamber.
5. The reducer device according to claim 4, characterized in that: The oil collecting groove is in an inverted trapezoidal shape, and the first through hole and the second through hole are both arranged close to the bottom wall of the oil collecting groove.
6. The reducer device according to any one of claims 1 to 5, characterized in that: The oil collecting tank has an oil inlet on one side close to the secondary driven gear, and the lubricating oil in the reducer housing enters the oil collecting tank through the oil inlet.
7. The reducer device according to any one of claims 1 to 5, characterized in that: The reducer housing is also provided with a third through hole, the third through hole is arranged near the bottom of the reducer housing, and the third through hole is communicated with the motor cavity.
8. A motor reducer assembly, characterized in that: A motor and a reducer device according to any one of claims 1 to 7; The motor comprises a motor housing, and the reducer housing of the reducer device is connected to the motor housing.
9. The motor reducer assembly according to claim 8, characterized in that: It also includes an oil pump and a heat exchanger, wherein the oil pump and the heat exchanger are both located below the motor; One end of the oil pump is communicated with the cavity of the motor housing, the other end of the oil pump is communicated with one end of the heat exchanger, and the other end of the heat exchanger is communicated with the reducer housing and the motor housing respectively.
10. A vehicle, characterized in that: Including the motor reducer assembly as described in claim 8 or 9.