Oil collecting device capable of passively controlling lubricating oil quantity and vehicle
By installing an interference-fit oil collection box inside the reducer, passive control of the lubricating oil is achieved, solving the problem of low lubricating oil utilization and improving the utilization rate of lubricating oil and the operating efficiency of the reducer.
Patent Information
- Application Number
- CN202423302842.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-12-30
AI Technical Summary
In existing technologies, the lubricating oil utilization rate in reducers is low, leading to problems such as low efficiency and increased oil temperature.
A passive oil collection device for controlling the amount of lubricating oil is designed. By setting an interference-connected oil collection box inside the reducer housing, the oil collection box collects and throws out lubricating oil under different conditions, thereby improving the utilization rate of lubricating oil.
By passively controlling the oil collection box, lubricant loss is reduced, lubricant utilization is improved, the risk of excessive lubricant in the reducer is reduced, and the lubrication effect and reducer operating efficiency are enhanced.
Smart Images
Figure CN223459867U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to electric drive technical field especially relates to a passive control lubricating oil amount's oil collecting device and vehicle. BACKGROUND
[0002] The bearing chamber in the prior art reducer adopts lubricating oil lubrication, and the oil amount of the lubricating oil is too much during the operation of the reducer, the oil stirring loss at the gear is large, the utilization rate of the lubricating oil is low, and the operation efficiency of the reducer is low, and the oil temperature in the reducer is high. SUMMARY
[0003] The technical problem solved by the present application is to provide a passive control lubricating oil amount's oil collecting device and vehicle, which can solve the problem of low utilization rate of lubricating oil.
[0004] To solve the above technical problem, one technical scheme of the present application is to provide a passive control lubricating oil amount's oil collecting device, comprising a reducer housing, a reducer and an oil collecting box, the reducer housing is provided with a containing cavity, the input shaft assembly is arranged in the containing cavity, the oil collecting box is arranged in the containing cavity and adjacent to one side of the input shaft assembly, the oil collecting box is connected with the cavity wall of the containing cavity by interference fit, the oil collecting box is configured to collect the lubricating oil splashed out of the input shaft assembly when the reducer housing is in a first state, and the collected lubricating oil is splashed out when the reducer housing is in a second state.
[0005] To solve the above technical problem, the present application also provides a technical scheme: a vehicle comprising the passive control lubricating oil amount's oil collecting device described above.
[0006] The present application improves the connection strength of the oil collecting box and the reducer housing by arranging the interference fit oil collecting box in the reducer housing, and improves the stability of the oil collecting box in the reducer housing. At the same time, when the reducer housing is in the first state, the oil collecting box can collect the lubricating oil splashed out of the input shaft assembly, which can reduce the loss of lubricating oil, thereby reducing the risk of excessive lubricating oil in the reducer housing. When the reducer housing is in the second state, the lubricating oil in the oil collecting box is splashed into other components in the reducer housing that need more lubricating oil, thereby improving the utilization rate of lubricating oil and improving the lubricating effect. BRIEF DESCRIPTION OF DRAWINGS
[0007] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating any creative labor.
[0008] Figure 1 A structural schematic diagram of an oil collecting device for passively controlling lubricating oil amount provided by an embodiment of the present application is shown in FIG. 1.
[0009] Figure 2 A structural schematic diagram of an oil collecting box provided by an embodiment of the present application is shown in FIG. 2.
[0010] Figure 3 A structural schematic diagram of an oil collecting box provided by an embodiment of the present application is shown in FIG. 2. Figure 2 A sectional view along the section line A-A in FIG. 1.
[0011] Figure 4 A structural schematic diagram of a second oil outlet provided by an embodiment of the present application is shown in FIG. 4.
[0012] Figure 5 A structural schematic diagram of a vehicle provided by an embodiment of the present application is shown in FIG. 5. DETAILED DESCRIPTION
[0013] 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 a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.
[0014] The terms "first", "second", "third" in the present application are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second", "third" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but can optionally include steps or units not listed, or can optionally include other steps or units inherent to the process, method, product or device.
[0015] Reference to an "embodiment" herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another. As will be apparent to those of ordinary skill in the art, embodiments described herein can be combined with other embodiments.
[0016] Please refer to Figure 1 , Figure 2 and Figure 3 In an embodiment of the application, a lubricating oil collecting device 100 is provided, which is passively controlled to collect lubricating oil. The lubricating oil collecting device 100 comprises a reducer housing 10, an input shaft assembly 20 and an oil collecting box 30. The reducer housing 10 is provided with a receiving cavity 11, and the input shaft assembly 20 and the oil collecting box 30 are arranged in the receiving cavity 11. The reducer housing 10 serves as a support and protection structure of the entire lubricating oil collecting device 100, ensuring that the components in the lubricating oil collecting device 100 can operate stably.
[0017] Specifically, the input shaft assembly 20 is located in the receiving cavity 11 of the reducer housing 10 and is a key component of the lubricating oil collecting device 100, i.e., the reducer, to achieve power transmission and speed regulation. The input shaft assembly 20 can convert high-speed low-torque power into low-speed high-torque output through motor driving, thereby meeting the torque demand of the corresponding vehicle 200 (see FIG. 2) driven wheels of the lubricating oil collecting device 100. Figure 5
[0018] The oil collecting box 30 is arranged in the receiving cavity 11 and adjacent to one side of the input shaft assembly 20. The oil collecting box 30 is in interference connection with the cavity wall of the receiving cavity 11. The oil collecting box 30 is configured to collect lubricating oil thrown out by the input shaft assembly 20 when the reducer housing 10 is in a first state and to throw out the collected lubricating oil when the reducer housing 10 is in a second state.
[0019] By arranging the oil collecting box 30 on one side of the input shaft, effective management of the lubricating oil in the lubricating oil collecting device 100 can be achieved without increasing the overall volume. The interference connection technology between the oil collecting box 30 and the cavity wall of the receiving cavity 11 not only improves the connection strength between the oil collecting box 30 and the reducer housing 10, but also reduces additional losses caused by friction between the oil collecting box 30 and the reducer housing 10.
[0020] The oil collecting box 30 has two working states:
[0021] First state (i.e., collection mode): During the operation of the lubricating oil collecting device 100 (for example, the corresponding vehicle 200 (see FIG. 2) driven wheels of the lubricating oil collecting device 100), the oil collecting box 30 is in the first state, i.e., the collection mode, to collect the lubricating oil thrown out by the input shaft assembly 20. Figure 5 ) smooth running), the input shaft assembly 20 can splash some lubricating oil when it rotates at high speed. At this time, the oil collecting box 30 effectively captures and collects these splashed lubricating oil, reducing the risk of excessive lubricating oil in the reducer housing 10, i.e. reducing the efficiency of the oil collecting device 100, the reducer.
[0022] Second state (i.e. splash mode): when the oil collecting device 100 swings under the action of external force (for example, the vehicle 200 corresponding to the oil collecting device 100 (the oil collecting device 100 Figure 5 ) generates uphill and downhill actions), at this time the oil collecting box 30 changes the angle with the reducer housing 10, and the reducer housing 10 can be switched from the first state to the second state. When the reducer housing 10 is in the second state, the lubricating oil accumulated in the oil collecting box 30 will be splashed out to the output shaft assembly or the component that needs more oil outside the oil collecting box 30, at this time the splashed lubricating oil just increases the lubricating effect, improves the utilization rate of lubricating oil.
[0023] Through the above-mentioned oil collecting device 100, by setting the interference connected oil collecting box 30 in the reducer housing 10, the connection strength of the oil collecting box 30 and the reducer housing 10 is improved, and the stability of the oil collecting box 30 in the reducer housing 10 is improved. At the same time, when the reducer housing 10 is in the first state, the oil collecting box 30 can collect the splashed lubricating oil from the input shaft assembly 20, and can reduce the loss of lubricating oil, thereby reducing the risk of excessive lubricating oil in the reducer housing 10. When the reducer housing 10 is in the second state, the lubricating oil in the oil collecting box 30 is splashed to other components in the reducer housing 10 that need more lubricating oil, thereby improving the utilization rate of lubricating oil and improving the lubricating effect.
[0024] It can be understood that the oil collecting box 30 can be arranged at any position in the reducer housing 10, and can also collect the splashed lubricating oil from other components in the reducer housing 10 except the input shaft assembly 20, so as to further improve the oil collecting effect of the oil collecting box 30.
[0025] Please refer to Figure 2 In an embodiment, the reducer housing 10 includes two side plates 12 arranged along the axial direction of the input shaft assembly 20, and the oil collecting box 30 is arranged between the two side plates 12 and connected with the two side plates 12 by interference. Through the above-mentioned arrangement, the two side plates 12 arranged oppositely provide support and protection for the oil collecting box 30. The main function of the oil collecting box 30 is to collect and store the splashed or dripped lubricating oil from the input shaft assembly 20, and in a specific state, the lubricating oil is splashed to other components in the reducer housing 10, so as to reduce the loss of lubricating oil, thereby improving the utilization rate of lubricating oil and reducing the pollution of working environment or affecting the normal operation of equipment.
[0026] In order to realize the stable connection between the oil collecting box 30 and the side plate 12, an interference fit is adopted. Interference fit is a method of increasing the size difference of the fitting surface to make the parts produce elastic deformation after assembly, so as to achieve the effect of tight connection.
[0027] It can be understood that the oil collecting box 30 and the side plate 12 can also be fixedly connected by other connection methods, which is not limited here.
[0028] Please refer to Figure 1 and Figure 2 In an embodiment, the oil collecting box 30 is provided with a clamping leg 31 on the side wall corresponding to each side plate 12, and the inner side wall of each side plate 12 is provided with a slot 121. Each clamping leg 31 is inserted into the corresponding slot 121 in an interference fit. Through the above arrangement, the clamping leg 31 and the slot 121 are inserted in an interference fit, which realizes the quick installation and disassembly of the oil collecting box 30 and the side plate 12, thereby simplifying the installation and maintenance process of the oil collecting box 30.
[0029] When the clamping leg 31 is inserted into the slot 121, due to the slight difference in size (i.e. interference) between the clamping leg 31 and the slot 121, a certain friction force will be generated between the clamping leg 31 and the slot 121, so that the clamping leg 31 can be firmly fixed in the slot 121, reducing the risk of the clamping leg 31 separating from the slot 121.
[0030] Please refer to Figure 1 and Figure 2 In an embodiment, each clamping leg 31 includes two spaced-apart clamping portions 311, which abut against the slot wall of the slot 121. When the two clamping portions 311 are relatively close under pressure, the two clamping portions 311 have a relatively separate springback force. Through the above arrangement, when the two clamping portions 311 are relatively close due to pressure from both sides of the slot 121, the internal stress of the clamping leg 31 begins to accumulate. Once the external pressure on the two clamping portions 311 is weakened or removed, the two clamping portions 311 will quickly return to their original position, and the energy released in this process is converted into a relatively separate springback force. This springback force not only ensures that the clamping leg 31 can tightly fit the slot 121, but also provides additional fixing force to enhance the stability and reliability of the connection between the clamping leg 31 and the slot 121.
[0031] It can be understood that in actual application, due to the size, material or manufacturing tolerance of the slot 121, the size of the slot 121 may vary. The springback force of the clamping portion 311 can compensate for these differences to some extent, ensuring that the clamping leg 31 can be smoothly inserted and locked in various specifications of the slot 121, improving the compatibility and universality of the oil collecting box 30.
[0032] In an embodiment, each clamping portion 311 has a semispherical structure.
[0033] Please refer to Figure 1 、 Figure 2 and Figure 3 In an embodiment, the oil collecting box 30 is provided with an oil collecting cavity 32, an oil inlet 33 and a first oil outlet 34. The oil collecting cavity 32 is used to accommodate lubricating oil. The oil inlet 33 is communicated with the oil collecting cavity 32 and is arranged opposite to the input shaft assembly 20. When the reducer housing 10 is in the first state, the lubricating oil thrown out by the input shaft assembly 20 enters the oil collecting cavity 32 through the oil inlet 33. The first oil outlet 34 is communicated with the oil collecting cavity 32 and is arranged on the side of the oil collecting box 30 away from the input shaft assembly 20. When the reducer housing 10 is in the second state, the lubricating oil in the oil collecting cavity 32 is thrown out of the oil collecting cavity 32 through the first oil outlet 34.
[0034] Specifically, the oil inlet 33 serves as a passage for the lubricating oil to enter the oil collecting cavity 32, so that when the reducer housing 10 is in the first state, the lubricating oil thrown out by the input shaft assembly 20 can enter the oil collecting cavity 32 through the oil inlet 33. The first oil outlet 34 is an outlet for the lubricating oil to be discharged from the oil collecting cavity 32. When the reducer housing 10 is in the second state, the first oil outlet 34 is communicated with the inside of the oil collecting cavity 32 to guide the lubricating oil collected in the oil collecting cavity 32 to other parts needing lubrication or a lubricating oil storage container.
[0035] The state conversion (first state, second state) of the oil collecting box 30 is generally dependent on the running state of the vehicle 200 (see Figure 5 ) corresponding to the oil collecting device 100. When the reducer housing 10 is in the first state, the vehicle 200 (see Figure 5 ) is in the process of normal and smooth driving at this time. When the reducer housing 10 is in the second state, the vehicle 200 (see Figure 5 ) is in the process of uphill or downhill driving at this time, so that the oil collecting box 30 is inclined with the reducer housing 10. By converting the state of the reducer housing 10 when the motion state of the vehicle 200 (see Figure 5 ) changes, the lubricating oil of the reducer housing 10 is effectively collected, stored and reused by the oil collecting box 30 when needed, thereby improving the utilization rate of the lubricating oil in the oil collecting device 100.
[0036] Please continue to refer to Figure 1 、 Figure 2 and Figure 3 In an embodiment, the oil inlet 33 and the first oil outlet 34 are arranged in a staggered manner in the spacing direction between the input shaft assembly 20 and the oil collecting box 30. Through the above arrangement, when the reducer housing 10 is in the first state, by staggering the oil inlet 33 and the first oil outlet 34, the risk of the lubricating oil thrown out by the input shaft assembly 20 and collected by the oil inlet 33 directly flowing out from the first oil outlet 34 can be reduced, thereby improving the collection effect of the oil collecting box 30.
[0037] Please continue to refer to Figure 1 , Figure 2 and Figure 3 In an embodiment, the side wall of the oil collecting box 30 used to form the first oil outlet 34 is curved to form an arc surface 35 in a direction away from the input shaft assembly 20. Through the above arrangement, when the reducer housing 10 is in the second state, the arc surface 35 can smoothly guide the lubricating oil in the oil collecting cavity 32 to flow to the predetermined first oil outlet 34, thereby reducing the residence time and vortex phenomenon of the oil in the oil collecting box 30, and improving the oil outlet efficiency of the lubricating oil.
[0038] Please continue to refer to Figure 1 , Figure 2 and Figure 3 In an embodiment, the oil collecting box 30 is also provided with an oil baffle 36 fixedly arranged in the oil collecting cavity 32, and the oil baffle 36 is arranged between the oil inlet 33 and the first oil outlet 34. The oil baffle 36 is used to guide the lubricating oil entering from the oil inlet 33 to flow into the oil collecting cavity 32. Through the above arrangement, near the high-speed rotating input shaft assembly 20, the lubricating oil tends to be thrown out and splash. The arrangement of the oil baffle 36 can effectively block the splashing lubricating oil, reduce the direct impact of the lubricating oil on the side wall of the oil collecting box 30 or the first oil outlet 34, and thereby reduce the waste of lubricating oil.
[0039] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 In an embodiment, the oil collecting box 30 is also provided with at least one second oil outlet 37 communicating with the oil collecting cavity 32 and arranged on the side wall of the oil collecting box 30 provided with the clamping foot 31. When the reducer housing 10 is in the third state, the lubricating oil in the oil collecting cavity 32 is thrown out of the oil collecting cavity 32 through the second oil outlet 37. Through the above arrangement, the second oil outlet 37 further provides multiple oil outlet paths for the oil collecting box 30, so that the reducer housing 10 can effectively discharge the lubricating oil in the oil collecting cavity 32 when it is in the third state.
[0040] In the present embodiment, when the reducer housing 10 is in the third state, the vehicle 200 (see Figure 5 ) corresponding to the oil collecting device 100 is in the process of left or right turning.
[0041] In an embodiment, the oil collecting box 30 is provided with two oppositely arranged second oil outlets 37, so that the lubricating oil in the oil collecting box 30 can be discharged during the process of left or right turning of the vehicle 200 (see Figure 5 ) corresponding to the oil collecting device 100, thereby improving the reutilization rate of the lubricating oil.
[0042] Please refer to Figure 1 and Figure 5The application also includes a vehicle 200 comprising the oil collecting device 100 for passive control of lubricating oil quantity. The vehicle 200 realizes the efficiency, stability and reliability of power transmission by adopting the oil collecting device 100. As the core power component of the vehicle 200, the oil collecting device 100 effectively solves the lubricating oil management problem by arranging the oil collecting box 30 inside, thereby reducing the loss of lubricating oil and improving the utilization rate of lubricating oil to ensure the long-term stable operation of the electric drive system.
[0043] The above is only an embodiment of the application, and does not limit the patent scope of the application. Any equivalent structure or equivalent process transformation using the content of the specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection scope of the application.
Claims
1. A sump device for passive control of the amount of lubricating oil, characterized in that The vehicle comprises the oil collecting device for passively controlling the amount of lubricating oil according to any one of claims 1-9. The reducer housing comprises two side plates arranged along the axial direction of the input shaft assembly, and the oil collecting box is clamped between the two side plates and is in interference connection with the two side plates. The oil collecting box is provided with a clamping foot on the side wall corresponding to each of the two side plates, and the inner side wall of each side plate is provided with a slot. Each clamping foot comprises two clamping portions arranged at intervals, and the clamping portions abut against the slot wall.
2. The oil collecting device of claim 1, wherein When the two clamping portions are relatively close under pressure, the two clamping portions have a relative separation springback force.
3. The oil collecting device of claim 2, wherein The oil collecting box is provided with:
4. The oil collecting device of claim 3, wherein An oil collecting cavity for containing lubricating oil; 5. The lubricating oil quantity passively controlled oil collecting device according to claim 3, characterized by An oil inlet port communicating with the oil collecting cavity and arranged opposite to the input shaft assembly, and when the reducer housing is in the first state, the lubricating oil thrown out by the input shaft assembly enters the oil collecting cavity through the oil inlet port; A first oil outlet port communicating with the oil collecting cavity, the first oil outlet port being arranged on the side of the oil collecting box away from the input shaft assembly, and when the reducer housing is in the second state, the lubricating oil in the oil collecting cavity is thrown out of the oil collecting cavity through the first oil outlet port. The oil inlet port and the first oil outlet port are arranged in a staggered manner in the spacing direction between the input shaft assembly and the oil collecting box. The oil collecting box is configured to bend the side wall of the first oil outlet port in a direction away from the input shaft assembly to form an arc surface.
6. The lubricating oil quantity passively controlled oil collecting device according to claim 5, characterized by The oil collecting box is further provided with:
7. The lubricating oil quantity passively controlled oil collecting device according to claim 5, characterized by An oil baffle fixedly arranged in the oil collecting cavity, and the oil baffle is arranged between the oil inlet port and the first oil outlet port, and the oil baffle is used to guide the lubricating oil entering from the oil inlet port to flow into the oil collecting cavity.
8. The lubricating oil quantity passively controlled oil collecting device according to claim 5, characterized by The oil collecting box is further provided with: At least one second oil outlet port communicating with the oil collecting cavity and arranged on the side wall of the oil collecting box provided with the clamping foot, and when the reducer housing is in a third state, the lubricating oil in the oil collecting cavity is thrown out of the oil collecting cavity through the second oil outlet port.
9. The lubricating oil quantity passively controlled oil collecting device according to claim 5, characterized by The vehicle comprises the oil collecting device for passively controlling the amount of lubricating oil according to any one of claims 1-9. 10. A vehicle characterized by comprising: