Lubricating system, lubricating method and gearbox

Abstract

The invention provides a lubricating system, a lubricating method and a gearbox, and is applied to the field of gearboxes. The controller adjusts the outer diameter of the circular partition plate according to the rotating speed of the differential mechanism and controls the oil stirring amount of the differential mechanism according to the outer diameter of the circular partition plate. Therefore, when the rotating speed of the differential mechanism is low, the oil stirring amount of the differential mechanism is large, the outer diameter of the circular partition plate is increased, the oil stirring amount of the differential mechanism is reduced, and oil stirring loss is reduced. When the rotating speed of the differential mechanism is high, the oil stirring amount of the differential mechanism is small, the outer diameter of the circular partition plate is reduced, and the oil stirring amount of the differential mechanism is increased. Therefore, the meshing position of the differential mechanism can be fully lubricated at the high rotating speed, and meanwhile the oil stirring loss of the differential mechanism at the low rotating speed is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of gearboxes, and in particular to a lubrication system, a lubrication method and a gearbox. Background Art

[0002] At present, the most commonly used lubrication method for gearboxes is splash lubrication. Splash lubrication mainly achieves lubrication through differential oil stirring. Since the power loss of differential oil stirring is directly related to the power loss of gearbox, how to reduce the power loss of differential oil stirring while ensuring the lubrication of differential has become a technical problem that needs to be solved urgently. Summary of the invention

[0003] The present application provides a lubrication system, a lubrication method and a gearbox, which are used to reduce the oil stirring power loss of the differential while ensuring the lubrication of the differential, thereby reducing the power loss of the gearbox.

[0004] In a first aspect, the present application provides a lubrication system, the system comprising a differential, a controller and a circular baffle;

[0005] The differential is used to stir the oil;

[0006] The controller is used to adjust the outer diameter of the circular partition according to the rotation speed of the differential, and the outer diameter of the circular partition is negatively correlated with the rotation speed of the differential;

[0007] The circular partition is used to control the oil stirring amount of the differential according to the outer diameter of the circular partition, and the outer diameter of the circular partition is negatively correlated with the oil stirring amount of the differential.

[0008] Optionally, the circular partition includes a variable partition and a fixed partition, the fixed partition is a partition with a fixed inner radius, the variable partition is a partition with a non-fixed outer radius, the variable partition is fixed on the variable partition, and the controller is specifically used to:

[0009] When the speed of the differential is greater than a preset speed threshold, adjusting the outer diameter of the variable partition so that the outer diameter of the variable partition after adjustment is the same as the outer diameter of the fixed partition;

[0010] When the rotation speed of the differential is not greater than a preset rotation speed threshold, the outer diameter of the variable partition is adjusted so that the outer diameter of the variable partition after adjustment is greater than the outer diameter of the fixed partition.

[0011] Optionally, the variable partition includes a plurality of fan-shaped partitions, each of which is connected to an intermediate ring via a metal rod, and the intermediate ring has two protruding hooks, which are used to control the rotation method of the intermediate ring, and the intermediate ring is used to adjust the outer diameter of the partition.

[0012] Optionally, the plurality of fan-shaped partitions are one of 4 fan-shaped partitions, 6 fan-shaped partitions and 8 fan-shaped partitions.

[0013] Optionally, the lubrication system further includes a temperature sensor, the temperature sensor is used to measure the temperature of the differential, the speed of the differential is negatively correlated with the speed of the differential, and the controller is further used to:

[0014] The temperature of the differential is acquired from the temperature sensor, and the outer diameter of the partition is adjusted according to the temperature of the differential. The outer diameter of the partition is negatively correlated with the temperature of the differential.

[0015] Optionally, the temperature sensor is connected to a meshing point of the differential, and the temperature of the meshing point is the temperature of the differential.

[0016] In a second aspect, the present application provides a lubrication method, which is applied to a lubrication system, wherein the lubrication system includes a differential, a controller, and a circular partition, and the method includes:

[0017] The controller obtains the rotation speed of the differential;

[0018] The controller adjusts the outer diameter of the circular partition according to the rotation speed of the differential, and the outer diameter of the circular partition is negatively correlated with the rotation speed of the differential;

[0019] The circular partition is used to control the oil stirring amount of the differential according to the outer diameter of the circular partition, and the outer diameter of the circular partition is negatively correlated with the oil stirring amount of the differential.

[0020] Optionally, the circular partition includes a variable partition and a fixed partition, the fixed partition is a partition with a fixed inner radius, the variable partition is a partition with a non-fixed outer radius, the variable partition is fixed on the variable partition, and the controller adjusts the outer diameter of the circular partition according to the rotation speed of the differential, including:

[0021] When the speed of the differential is greater than a preset speed threshold, adjusting the outer diameter of the variable partition so that the outer diameter of the variable partition after adjustment is the same as the outer diameter of the fixed partition;

[0022] When the rotation speed of the differential is not greater than a preset rotation speed threshold, the outer diameter of the variable partition is adjusted so that the outer diameter of the variable partition after adjustment is greater than the outer diameter of the fixed partition.

[0023] Optionally, the variable partition includes a plurality of fan-shaped partitions, each of which is connected to an intermediate ring via a metal rod, and the intermediate ring has two protruding hooks, which are used to control the rotation method of the intermediate ring, and the intermediate ring is used to adjust the outer diameter of the partition.

[0024] In a third aspect, the present application provides a gearbox, comprising a lubrication system as described in any one of the first aspects.

[0025] Beneficial effects:

[0026] The present application provides a lubrication system, a lubrication method and a gearbox. Among them, the controller adjusts the outer diameter of the circular partition according to the rotational speed of the differential, and controls the oil stirring amount of the differential according to the outer diameter of the circular partition. In this way, when the differential speed is slow, the differential oil stirring amount is large. At this time, increasing the outer diameter of the circular partition will reduce the oil stirring amount of the differential, thereby reducing the oil stirring loss. When the differential speed is fast, the differential oil stirring amount is small. At this time, reducing the outer diameter of the circular partition will increase the oil stirring amount of the differential. In this way, the embodiment of the present application has a high amount of meshing oil at the meshing point at high speed, the meshing point of the differential can be fully lubricated, and at the same time, the differential oil stirring loss at low speed is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of the structure of a lubrication system provided in an embodiment of the present application;

[0028] Figure 2 A schematic diagram of a circular partition 102 combined with a differential 101 provided in an embodiment of the present application;

[0029] Figure 3 A schematic diagram of a circular partition provided in an embodiment of the present application;

[0030] Figure 4 A schematic diagram of a circular baffle based on a snap ring provided in an embodiment of the present application;

[0031] Figure 5 A schematic diagram of a lever and a spring in conjunction with each other to control the opening and closing of a circular partition provided in an embodiment of the present application;

[0032] Figure 6 A schematic diagram of another lubrication system provided in an embodiment of the present application;

[0033] Figure 7 A flow chart of the lubrication method provided in an embodiment of the present application. DETAILED DESCRIPTION

[0034] The terms "first", "second", "third", etc. in the description, claims and drawings of this application are used to distinguish different objects, rather than to limit a specific order.

[0035] In the embodiments of this application, words such as "exemplary" or "for example" are used to represent examples, illustrations or explanations. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Rather, the use of words such as "exemplary" or "for example" is intended to present relevant concepts in a specific manner.

[0036] First, introduce professional terms.

[0037] A differential is a differential mechanism that can transmit rotational motion from one shaft to two shafts and enable the latter to rotate at different speeds relative to each other. An automotive differential is the main component of a drive axle. Its function is to allow the two half-axles to rotate at different speeds while transmitting power to the two half-axles, so as to satisfy the requirement that the two wheels can travel unequal distances as purely rolling as possible, reducing the friction between the tires and the ground.

[0038] As described above, the commonly used lubrication method in a gearbox is splash lubrication. Splash lubrication means that when the rotational speed of a rotating part sealed in a machine case is relatively high (5m / s < v < 12m / s), the lubricating oil is splashed and atomized into small droplets and carried to the lubrication site to form automatic lubrication. Specifically, splash lubrication realizes the lubrication purpose of the differential meshing part through the oil agitation of the differential. The power loss of the differential oil agitation affects the power loss of the gearbox. When the power loss of the differential oil agitation is relatively large, the power loss of the gearbox will also increase. Therefore, on the premise of ensuring sufficient lubrication at the differential meshing part, reducing the power loss of the differential oil agitation is crucial for reducing the power loss of the gearbox.

[0039] In view of the above problems, the embodiments of this application provide a lubrication system. The controller in the lubrication system adjusts the outer diameter of the circular partition according to the rotational speed of the differential, and controls the oil agitation amount of the differential according to the outer diameter of the circular partition. In this way, when the rotational speed of the differential is relatively slow, the oil agitation amount of the differential is relatively large. At this time, increase the outer diameter of the circular partition to reduce the oil agitation amount of the differential, thereby reducing the oil agitation loss. When the rotational speed of the differential is relatively fast, the oil agitation amount of the differential is relatively small. Reduce the outer diameter of the circular partition to increase the oil agitation amount of the differential. In this way, it is realized that the meshing part of the differential can be fully lubricated at high rotational speeds, while reducing the oil agitation loss of the differential at low rotational speeds.

[0040] The following fully describes the lubrication system provided by the embodiments of this application.

[0041] Embodiment 1

[0042] See Figure 1, is a schematic diagram of the structure of the lubrication system provided in the embodiment of the present application. The lubrication system includes: a differential 101, a circular partition 102 and a controller 103. The following are analyzed respectively:

[0043] The differential 101 is used to stir the oil. In actual use, the amount of oil stirred by the differential 101 is negatively correlated with the speed of the differential 101. When the speed of the differential 101 is low, the amount of oil stirred by the differential 101 is greater. It can be understood that the meshing of the differential 101 can be fully lubricated at low speeds, but may be insufficiently lubricated at high speeds.

[0044] The circular partition 102 is used to control the oil stirring amount of the differential according to the outer diameter of the circular partition 102. In the embodiment of the present application, the outer diameter of the circular partition 102 is negatively correlated with the oil stirring amount of the differential. When the outer diameter of the circular partition 102 is larger, the oil stirring amount of the differential is smaller. When the outer diameter of the circular partition 102 is smaller, the oil stirring amount of the differential is larger. It can be understood that the outer diameter of the circular partition can be variable.

[0045] Example 1: The circular partition 102 is a circular ring composed of variable partitions. The radius of the variable partition can be increased or decreased. The variable partition is nested on the rolling bearing of the differential 101, and the fixed partition forms a sealed contact with the rolling bearing. The variable partition includes a plurality of fan-shaped sub-partitions, each of which is connected to the middle ring of the differential 101 through a metal rod. The middle ring includes two protruding hooks for connecting with the gear position to control the rotation direction of the middle ring. When the middle ring is rotated, the fan-shaped sub-partition will move along the slide groove, thereby realizing the radius adjustment of the variable partition.

[0046] For example, see Figure 2 , is a schematic diagram of a circular partition 102 combined with a differential 101 provided in an embodiment of the present application. The circular partition 102 includes a variable partition and a fixed partition. Figure 3 Shown is a schematic diagram of a circular partition provided in an embodiment of the present application. Figure 3 (a) in the figure is a fixed partition, and the radius of the partition is fixed. Figure 3 (b) in the figure shows a variable partition whose radius is variable. Figure 3 (c) in the figure shows how the variable partition reduces its radius. The variable partition is retracted to reduce its radius. Figure 3 (d) in the figure shows how the radius can be increased by the variable partition. Opening the partition increases the radius of the partition.

[0047] The circular partition 102 includes an inner ring and an outer ring, the inner ring is a fixed partition, and is used to fix the variable partition of the outer ring. The variable partition is fixed to the partition by bolts and moves along the slide groove of the fixed partition. The fixed partition is nested on the rolling bearing 1011 of the differential 101, and the fixed partition forms a sealed contact with the rolling bearing 1011. In this way, it can be prevented that the oil thrown during the stirring of the differential 101 enters other positions of the differential, causing an increase in the loss of differential oil stirring.

[0048] The variable partition includes a plurality of sector-shaped sub-partitions, each of which is connected to the middle ring of the differential 101 through a metal rod. The middle ring includes two protruding hooks for connecting with the gear position to control the rotation direction of the middle ring. The variable partition is connected to the fixed partition through a threaded connection. When the middle ring is rotated, the sector-shaped sub-partition will move along the slide slot, thereby realizing the radius adjustment of the variable partition.

[0049] In another possible implementation, the circular partition 102 is connected to the clamp ring 104, see Figure 4 , is a schematic diagram of a circular partition based on a retaining ring provided in an embodiment of the present application.

[0050] One end of the clamp ring 104 is clamped with the main hook and connected to the spring. A fixed lever is provided on the clamp ring 104, and the lever can rotate around the central axis of the circular partition. Figure 5 , is a schematic diagram of a lever and spring joint control to control the opening and closing of a circular partition provided in an embodiment of the present application. When the lever is rotated to the hook side, the top of the lever presses against the end of the snap ring 104, driving the hook to rotate, thereby realizing the retraction of the variable partition in the circular partition 102, and the spring is in a compressed state at this time. When the lever is rotated to the side opposite to the hook, the spring drives the snap ring 104 to gradually change from a compressed state to an uncompressed state, and at this time the variable partition in the circular partition 102 is opened. In this way, the radius of the circular partition is adjusted by the snap ring.

[0051] In the embodiments of the present application, the number of fan-shaped sub-partitions may be 4, 6, 8, etc., or may be other numbers such as 16, etc. The present application does not specifically limit the number of fan-shaped sub-partitions.

[0052] in, Figure 2 (a) in the figure shows the combination of the differential 101 and the circular partition 102 after the partition is folded. Figure 2 (b) in the figure shows the combination of the differential 101 and the circular partition 102 after the partition is opened. Figure 2 It can be found from (a) and (b) in FIG. 1 that the larger the outer diameter of the circular partition 102 is, the smaller the oil stirring amount of the differential is.

[0053] It is worth noting that the above-mentioned circular baffle and the radius adjustment method of the circular baffle are only schematically described, and those skilled in the art can adjust them according to their needs.

[0054] In addition, the controller 103 is used to adjust the radius of the circular partition 102 according to the rotation speed of the differential 101. There is a negative correlation between the rotation speed of the differential 101 and the radius of the circular partition 102. As the rotation speed of the differential converter 101 increases, the radius of the circular partition 102 increases.

[0055] For example, if the circular partition 102 includes a variable partition and a fixed partition, the fixed partition is a partition with a fixed inner radius, the variable partition is a partition with an unfixed outer radius, and the variable partition is fixed on the variable partition. Figure 3 shown.

[0056] At this time, when the speed of the differential is greater than the preset speed threshold, the outer diameter of the variable partition is adjusted so that the outer diameter of the adjusted variable partition is the same as the outer diameter of the fixed partition. At this time, the oil stirred by the tooth surface is not affected by the partition, and the differential meshing can be fully lubricated.

[0057] When the speed of the differential is not greater than the preset speed threshold, the outer diameter of the variable partition is adjusted so that the outer diameter of the variable partition after adjustment is greater than the outer diameter of the fixed partition. At this time, the gear surface stirs less oil, and the differential oil stirring loss is reduced.

[0058] In this way, the oil stirring amount of the differential 101 can be controlled by the relationship between the outer diameter of the variable partition plate and the outer diameter of the fixed partition plate.

[0059] In a possible implementation, the controller 103 pre-sets a mapping relationship between the rotation speed v of the differential 101 and the radius r of the circular partition 102, for example, r=mv, where m is a constant. The controller 103 obtains the rotation speed v of the differential 101, and calculates the radius r of the circular partition 102 according to the rotation speed v. The controller 103 sends the calculated radius r of the circular partition 102 to the circular partition 102, and the circular partition 102 adjusts the radius to r.

[0060] In a possible implementation, the controller 103 pre-sets a mapping relationship between the speed v range of the differential 101 and the radius r of the circular partition 102, as exemplified:

[0061] When v∈[v1,v2], r=r1, when v∈(v2,v3], r=r2, when v∈(v3,v4], r=r3. Among them, v1<v2<v3<v4, r1>r2>r3>r4. In this way, the embodiment of the present application adjusts the radius r of the circular partition 102 through the gear method through the relationship between the range of the rotational speed v of the differential 101 and the number r of the circular partition 102.

[0062] In the embodiment of the present application, the controller 103 can obtain the speed of the motor that controls the speed of the differential 101, and obtain the speed of the differential 101 by calculating the motor speed.

[0063] In another possible implementation, the temperature of the differential 101 may be measured by a temperature sensor, and the rotational speed of the differential 101 may be calculated based on the relationship between the temperature and the rotational speed of the differential 101 .

[0064] It is worth noting that the embodiment of the present application can also obtain the rotation speed of the differential 101 through other methods, which are not specifically limited in this field.

[0065] The embodiment of the present application provides a lubrication system, in which a controller in the lubrication system adjusts the outer diameter of the circular baffle according to the rotational speed of the differential, and controls the amount of oil stirring of the differential according to the outer diameter of the circular baffle. In this way, when the differential rotates slowly, the amount of oil stirring of the differential is large. At this time, the outer diameter of the circular baffle is increased to reduce the amount of oil stirring of the differential, thereby reducing the oil stirring loss. When the differential rotates quickly, the amount of oil stirring of the differential is small. The outer diameter of the circular baffle is reduced to increase the amount of oil stirring of the differential. In this way, the meshing part of the differential can be fully lubricated at high rotational speeds, while reducing the oil stirring loss of the differential at low rotational speeds.

[0066] Embodiment 2

[0067] Considering that the speed of the differential is always changing, it is difficult to adjust the speed using the differential. The embodiment of the present application provides another lubrication system.

[0068] See also Figure 6 , is a schematic diagram of another lubrication system provided in an embodiment of the present application. The lubrication system comprises:

[0069] Differential 601, circular baffle 602, controller 603 and temperature sensor 604. The temperature sensor 604 is used to measure the temperature of the differential 601. It can be understood that the higher the speed of the differential speed 601, the higher the temperature of the differential 601 measured by the temperature sensor 604.

[0070] Among them, the number of temperature sensors 604 can be 1, but considering the existence of measurement errors, the number of temperature sensors 604 can be multiple. Assuming that the number of temperature sensors 604 is n, obtain the problems T1, T2, T3, ..., Tn measured by the n temperature sensors respectively. At this time, remove the maximum temperature and the minimum temperature, calculate the average of the remaining n-2 temperatures, and use the average value as the temperature of the differential 601.

[0071] In another possible implementation, the temperature control measuring point of the temperature sensor may be limited to be located at the meshing part of the differential 601. During the rotation process of the differential 601, the meshing part will be continuously meshed, so the temperature at the meshing part can more accurately represent the rotation speed of the differential 601.

[0072] The controller 603 is connected to the temperature sensor 604 and is used to obtain the temperature of the differential 601 collected by the temperature sensor 604. Then the controller 604 adjusts the radius of the circular partition 601 according to the temperature of the differential 601. There is a negative correlation between the temperature T of the differential 601 and the radius r of the circular partition 601. When T is larger, r is smaller.

[0073] In a possible implementation, if the circular partition 602 includes a variable partition and a fixed partition, the fixed partition is a partition with a fixed inner radius, the variable partition is a partition with an unfixed outer radius, and the variable partition is fixed on the variable partition. Figure 3 At this time, the radius of the circular partition 602 can be adjusted in the following manner.

[0074] When the temperature of the differential is greater than the preset temperature threshold, the outer diameter of the variable partition is adjusted so that the outer diameter of the adjusted variable partition is the same as the outer diameter of the fixed partition. At this time, the oil stirred by the tooth surface is not affected by the partition, and the differential meshing can be fully lubricated. When the temperature of the differential is not greater than the preset temperature threshold, the outer diameter of the variable partition is adjusted so that the outer diameter of the adjusted variable partition is greater than the outer diameter of the fixed partition. At this time, the oil stirred by the tooth surface becomes less, and the differential oil stirring loss is reduced.

[0075] In a possible implementation, the controller 603 pre-sets a mapping relationship between the temperature T of the differential 601 and the radius r of the circular partition 602, for example, r=aT, where a is a constant. The controller 603 obtains the temperature T of the differential 601, and calculates the radius r of the circular partition 602 according to the temperature T. The controller 603 sends the calculated radius r of the circular partition 602 to the circular partition 602, and the circular partition 602 adjusts the radius to r.

[0076] In a possible implementation, the controller 603 pre-sets a mapping relationship between the temperature T range of the differential 601 and the radius r of the circular partition 602, as exemplified:

[0077] When T∈[T1,T2], r=r1, when T∈(T2,T3], r=r2, when T∈(T3,T4], r=r3. Among them, T1<T2<T3<T4, r1>r2>r3>r4. In this way, the embodiment of the present application adjusts the radius r of the circular partition 602 through the gear position through the relationship between the range of the temperature T of the differential 601 and the radius r of the circular partition 602.

[0078] The specific structure of the circular partition 602 and the method of adjusting the radius are described in the first embodiment, and will not be repeated in this application.

[0079] The embodiment of the present application provides a lubrication system, in which a controller in the lubrication system adjusts the outer diameter of a circular partition according to the temperature of a differential, and controls the amount of oil stirring of the differential according to the outer diameter of the circular partition. Compared with adjusting the outer diameter of the circular partition according to the rotation speed of the differential, the operation is simpler and the error is smaller.

[0080] In addition, an embodiment of the present application also provides a lubrication method.

[0081] See also Figure 7 , is a flow chart of the lubrication method provided in the embodiment of the present application. The method specifically comprises:

[0082] S71: The controller obtains the rotation speed of the differential.

[0083] S72: The controller adjusts the outer diameter of the circular partition according to the rotation speed of the differential.

[0084] The outer diameter of the circular partition is negatively correlated with the speed of the differential. When the circular partition includes a variable partition and a fixed partition, the fixed partition is a partition with a fixed inner radius, the variable partition is a partition with a non-fixed outer radius, and the variable partition is fixed on the variable partition. The controller adjusts the outer diameter of the circular partition according to the speed of the differential, including:

[0085] When the speed of the differential is greater than a preset speed threshold, the outer diameter of the variable baffle is adjusted so that the adjusted outer diameter of the variable baffle is the same as the outer diameter of the fixed baffle; when the speed of the differential is not greater than the preset speed threshold, the outer diameter of the variable baffle is adjusted so that the adjusted outer diameter of the variable baffle is greater than the outer diameter of the fixed baffle.

[0086] The variable partition includes multiple fan-shaped partitions, each of which is connected to the middle ring through a metal rod. The middle ring has two protruding hooks, which are used to control the rotation method of the middle ring. The middle ring is used to adjust the outer diameter of the partition.

[0087] S73: The circular baffle is used to control the amount of oil stirring in the differential according to the outer diameter of the circular baffle.

[0088] Among them, the outer diameter of the circular partition is negatively correlated with the oil stirring amount of the differential.

[0089] In addition, the plurality of fan-shaped partitions is one of 4 fan-shaped partitions, 6 fan-shaped partitions and 8 fan-shaped partitions.

[0090] Optionally, the controller is further configured to obtain the temperature of the differential from the temperature sensor, and adjust the outer diameter of the partition according to the temperature of the differential, wherein the outer diameter of the partition is negatively correlated with the temperature of the differential. The temperature of the differential is negatively correlated with the speed of the differential.

[0091] Optionally, a temperature sensor is connected to a meshing point of the differential, and the temperature of the meshing point is the temperature of the differential.

[0092] The embodiment of the present application provides a lubrication method, in which the controller adjusts the outer diameter of the circular partition according to the rotational speed of the differential, and controls the oil stirring amount of the differential according to the outer diameter of the circular partition. In this way, when the differential speed is slow, the differential oil stirring amount is large. At this time, the outer diameter of the circular partition is increased to reduce the oil stirring amount of the differential, thereby reducing the oil stirring loss. When the differential speed is fast, the differential oil stirring amount is small. The outer diameter of the circular partition is reduced and the oil stirring amount of the differential is increased. In this way, the meshing part of the differential can be fully lubricated at high speeds, while reducing the oil stirring loss of the differential at low speeds.

[0093] Finally, an embodiment of the present application also provides a gearbox, which includes a lubrication system as described in any one of the first aspects.

[0094] The technical solution of this embodiment, in essence, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the method described in each embodiment. The aforementioned storage medium includes: flash memory, mobile hard disk, read-only memory, random access memory, magnetic disk or optical disk, etc., various media that can store program codes.

[0095] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application 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 lubrication system, characterized in that: The system includes a differential, a controller, and a circular partition; The differential is used to stir the oil; The controller is used to adjust the outer diameter of the circular partition according to the rotation speed of the differential, and the outer diameter of the circular partition is negatively correlated with the rotation speed of the differential; The circular partition is used to control the oil stirring amount of the differential according to the outer diameter of the circular partition, and the outer diameter of the circular partition is negatively correlated with the oil stirring amount of the differential.

2. The system according to claim 1, characterized in that: The circular baffle includes a variable baffle and a fixed baffle, the fixed baffle is a baffle with a fixed inner radius, the variable baffle is a baffle with an unfixed outer radius, the variable baffle is fixed on the variable baffle, and the controller is specifically used for: When the speed of the differential is greater than a preset speed threshold, adjusting the outer diameter of the variable partition so that the outer diameter of the variable partition after adjustment is the same as the outer diameter of the fixed partition; When the rotation speed of the differential is not greater than a preset rotation speed threshold, the outer diameter of the variable partition is adjusted so that the outer diameter of the variable partition after adjustment is greater than the outer diameter of the fixed partition.

3. The system according to claim 2, characterized in that: The variable partition includes multiple fan-shaped partitions, each of which is connected to the middle ring through a metal rod. The middle ring has two protruding hooks, which are used to control the rotation method of the middle ring. The middle ring is used to adjust the outer diameter of the partition.

4. The system according to claim 3, characterized in that: The plurality of fan-shaped partitions are one of 4 fan-shaped partitions, 6 fan-shaped partitions and 8 fan-shaped partitions.

5. The system according to any one of claims 1 to 4, characterized in that: The lubrication system further comprises a temperature sensor, wherein the temperature sensor is used to measure the temperature of the differential, and the problem of the differential is negatively correlated with the rotation speed of the differential. The controller is further used to: The temperature of the differential is acquired from the temperature sensor, and the outer diameter of the partition is adjusted according to the temperature of the differential. The outer diameter of the partition is negatively correlated with the temperature of the differential.

6. The system according to claim 4, characterized in that: The temperature sensor is connected to a meshing point of the differential, and the temperature of the meshing point is the temperature of the differential.

7. A lubrication method, characterized in that: Applied to a lubrication system, the lubrication system includes a differential, a controller and a circular partition, the method includes: The controller obtains the rotation speed of the differential; The controller adjusts the outer diameter of the circular partition according to the rotation speed of the differential, and the outer diameter of the circular partition is negatively correlated with the rotation speed of the differential; The circular partition is used to control the oil stirring amount of the differential according to the outer diameter of the circular partition, and the outer diameter of the circular partition is negatively correlated with the oil stirring amount of the differential.

8. The method according to claim 7, characterized in that: The circular partition includes a variable partition and a fixed partition, the fixed partition is a partition with a fixed inner radius, the variable partition is a partition with a non-fixed outer radius, the variable partition is fixed on the variable partition, and the controller adjusts the outer diameter of the circular partition according to the rotation speed of the differential, including: When the speed of the differential is greater than a preset speed threshold, adjusting the outer diameter of the variable partition so that the outer diameter of the variable partition after adjustment is the same as the outer diameter of the fixed partition; When the rotation speed of the differential is not greater than a preset rotation speed threshold, the outer diameter of the variable partition is adjusted so that the outer diameter of the variable partition after adjustment is greater than the outer diameter of the fixed partition.

9. The method according to claim 8, characterized in that: The variable partition includes multiple fan-shaped partitions, each of which is connected to the middle ring through a metal rod. The middle ring has two protruding hooks, which are used to control the rotation method of the middle ring. The middle ring is used to adjust the outer diameter of the partition.

10. A gearbox, characterized in that: The gearbox comprises a lubrication system as claimed in any one of claims 1-6.

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