Shell oil baffle rib structure

Abstract

The utility model belongs to the technical field of motors, and provides a shell oil baffle rib structure which comprises an oil stirring gear, an oil baffle plate, an oil baffle rib and a shell. Wherein the oil baffle plate is mounted in an inner cavity of the shell, and the oil stirring gear is rotationally mounted on one surface of the oil baffle plate; the multiple oil baffle ribs are located on the shell and located on the surface, away from the oil stirring gear, of the oil baffle plate, and an inner space defined by the multiple oil baffle ribs, the oil baffle plate and the shell serves as an oil storage cavity; the oil storage cavity is located in an inner cavity of the shell, communicates with the inner cavity of the shell and is used for keeping dynamic balance with the height of oil in the inner cavity of the shell and collecting backflow oil. According to the utility model, the oil storage cavity is formed in the inner cavity of the shell by adopting the structures such as the oil baffle plate and the oil baffle rib, and the oil storage cavity is communicated with the inner cavity of the shell, so that the height of oil in the inner cavity of the shell keeps dynamic balance, and the backflow oil is collected.

Description

Technical Field

[0001] The utility model belongs to the technical field of motors, and particularly relates to a shell oil retaining rib structure. Background Art

[0002] In the new energy reducer system, the rotating gears stir the oil in the cavity, causing a large number of bubbles to appear in the oil. At the same time, a large amount of oil is pumped away at the oil pump suction port, causing the oil pump to inhale a large number of bubbles, which in turn causes cavitation, affecting the life of the oil pump and aggravating the NVH problem. At the same time, it affects the oil suction efficiency of the oil pump, and ultimately affects the operation of the cooling and lubrication system.

[0003] In addition, in the prior art, the oil storage chamber is openly connected to the shell cavity, and the distance between the oil storage chamber and the oil stirring gear in the cavity is relatively far, requiring a larger layout space, and is usually suitable for smaller output angles; however, when the output angle is large, the line connecting the input and output shafts is approximately perpendicular to the horizontal angle, the space at the bottom of the cavity is small, and the position of the oil storage chamber and the oil stirring gear approximately coincide with each other. The oil in the oil storage chamber will inevitably be disturbed by the gears, generating bubbles, thereby affecting the oil suction of the oil pump and ultimately affecting the lubrication and cooling system. Utility Model Content

[0004] In view of the problems in the background technology, the utility model proposes a shell oil retaining rib structure.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A shell oil baffle structure, comprising an oil stirring gear, an oil baffle plate, an oil baffle and a shell;

[0007] The oil baffle is installed in the inner cavity of the housing;

[0008] The oil stirring gear is rotatably mounted on a surface of the oil baffle plate;

[0009] The oil baffle ribs are provided in a plurality and are located on the housing and on a surface of the oil baffle plate away from the oil stirring gear. The internal space enclosed by the plurality of oil baffle ribs, the oil baffle plate and the housing serves as an oil storage chamber.

[0010] The oil storage chamber is located in the inner cavity of the shell and is communicated with the inner cavity of the shell, and is used to maintain a dynamic balance with the oil height in the inner cavity of the shell and to collect the refluxed oil.

[0011] Preferably, the bottom of the oil storage cavity forms a first oil inlet groove and a second oil inlet groove through adjacent and non-contacting oil retaining ribs;

[0012] The first oil inlet groove and the second oil inlet groove of the oil storage cavity are communicated with the inner cavity of the shell, and are used to maintain a dynamic balance of liquid level with the oil in the shell.

[0013] Preferably, one side of the oil storage chamber forms an oil-swinging groove through adjacent and non-contacting oil-blocking ribs, and the oil storage chamber is connected to the inner cavity of the shell through the oil-swinging groove, which is used to collect the oil thrown up when the oil stirring gear rotates.

[0014] Preferably, the horizontal height of the oil-slinging groove is greater than that of the first oil-inlet groove and the second oil-inlet groove.

[0015] Preferably, a gap is left between the oil baffle plate and the housing in a radial direction, and when the oil stirring gear rotates, the oil flows through the gap to the opening of the oil throwing groove.

[0016] Preferably, an oil suction port is also provided at the bottom of the oil storage cavity, and the oil suction port is located inside the first oil inlet groove.

[0017] Preferably, the oil storage chamber is also connected to a motor oil return chamber, for collecting the oil in the motor oil return chamber;

[0018] The horizontal height of the motor oil return chamber is greater than the oil throwing groove.

[0019] Preferably, the motor oil return chamber is located at the top of the oil storage chamber.

[0020] Preferably, an axial hole is arranged at the center of the oil baffle, a bearing chamber is arranged at a position of the shell corresponding to the axial hole, the bearing chamber is connected with a bearing chamber oil drain groove, and the bearing chamber is connected with the oil storage cavity through the bearing chamber oil drain groove.

[0021] Preferably, the bearing chamber oil drain groove is opened on the inner surface of the bearing chamber and is located below the bearing chamber, and is used to collect oil leaked from the bearing chamber.

[0022] Beneficial effects of the utility model:

[0023] 1. The utility model forms an oil storage cavity by using structures such as an oil baffle plate and an oil baffle rib in the inner cavity of the shell, and the oil storage cavity is connected with the inner cavity of the shell, so that the oil height in the inner cavity of the shell is kept in dynamic balance and the refluxed oil is collected;

[0024] 2. The utility model sets the oil suction port in the oil storage chamber. When the oil stirring gear stirs the oil, the oil in the oil storage chamber will not be affected or will be affected only slightly. This can avoid the generation of bubbles at the oil suction port, thereby keeping the lubrication and cooling system stable and efficient. At the same time, sufficient oil is provided to the oil storage chamber to avoid emptying of the oil suction port. The utility model has a simple structure, high reliability and a wide range of applications.

[0025] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] 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 work.

[0027] Figure 1 A front structural schematic diagram of a shell oil retaining rib structure of the utility model is shown;

[0028] Figure 2 The front structural schematic diagram of the oil baffle of the utility model is shown;

[0029] Figure 3 A schematic diagram of the back structure of a shell oil retaining rib structure of the utility model is shown;

[0030] Figure 4 A schematic diagram showing the position of an oil-slinging groove on the back side of an oil-blocking rib structure of a shell of the utility model is shown.

[0031] In the figure: 1. oil stirring gear; 2. oil baffle plate; 3. oil storage chamber; 4. oil baffle rib; 5. oil suction port; 6. first oil inlet groove; 7. second oil inlet groove; 8. oil throwing groove; 9. motor oil return chamber; 10. bearing chamber oil drain groove; 11. housing. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] A housing oil baffle structure includes an oil stirring gear 1, an oil baffle plate 2, an oil baffle 4 and a housing 11. Figure 1 As shown, the oil baffle plate 2 is installed in the inner cavity of the housing 11, and the stirring gear 1 is rotatably installed on a surface of the oil baffle plate 2. During operation, the stirring gear 1 can rotate in a clockwise or counterclockwise direction, and the oil in the inner cavity of the housing 11 will also be driven by the stirring gear 1.

[0034] like Figure 2As shown, the oil baffle plate 2 is located in the middle of the housing 11, and a shaft hole is opened in the center thereof. A bearing chamber is set at the position of the housing 11 corresponding to the shaft hole, and the bearing chamber can be installed with a rotating shaft. In addition, the oil baffle plate 2 does not completely close the housing 11, and a certain gap is left between the oil baffle plate 2 and the housing 11 in the radial direction. Under the action of gravity, the oil in the housing 11 will gather at the bottom. When the oil stirring gear 1 rotates, the oil at the bottom of the housing 11 is thrown up, and then flows to the other side of the oil baffle plate 2 through the gap.

[0035] It should be noted that the main function of the oil baffle plate 2 in this system is to effectively manage and control the flow of oil, especially when the stirring gear 1 is rotating. For example, when the stirring gear 1 is rotating, it will throw up the oil at the bottom of the housing 11. If there is no oil baffle plate 2, the oil will be stirred, resulting in a large number of bubbles at the oil suction port 5, and eventually causing the oil pump to suck empty. The setting of the oil baffle plate 2 can effectively prevent the oil in the oil storage chamber from generating bubbles, ensuring that the oil pump has a stable and sufficient amount of lubricating oil.

[0036] It should be noted that the oil flows through the gap to the other side of the oil baffle plate 2 under the action of the oil stirring gear 1. This design can effectively guide the oil on the outside of the oil baffle plate 2 into the oil storage cavity 3, providing sufficient lubricating oil for the oil suction port 5, thereby effectively preventing the oil pump from sucking empty.

[0037] It should be further explained that the radial gap between the oil baffle plate 2 and the housing 11 is not necessarily along the circumference of the oil baffle plate 2 , but may also be concentrated on the lower side, left side and right side of the oil baffle plate 2 .

[0038] like Figure 3 As shown, there are a plurality of oil baffle ribs 4, which are located on the housing 11 and on a surface of the oil baffle plate 2 away from the oil stirring gear 1, and the internal space surrounded by the plurality of oil baffle ribs 4, the oil baffle plate 2 and the housing 11 serves as an oil storage chamber 3. The oil storage chamber 3 is located in the inner cavity of the housing 11 and is communicated with the inner cavity of the housing 11, and is used to maintain a dynamic balance with the oil height in the inner cavity of the housing 11 and to collect the refluxed oil.

[0039] It should be noted that the oil baffle rib 4 is fixedly connected to the housing 11 and can be connected to the oil baffle plate 2 by bolts.

[0040] like Figure 4As shown, the bottom of the oil storage chamber 3 forms a first oil inlet groove 6 and a second oil inlet groove 7 through adjacent and non-contacting oil retaining ribs 4. The oil storage chamber 3 is connected to the inner cavity of the shell 11 through the first oil inlet groove 6 and the second oil inlet groove 7, and is used to maintain a dynamic balance of the liquid level with the oil in the shell 11. In addition, one side of the oil storage chamber 3 forms an oil throwing groove 8 through the adjacent and non-contacting oil retaining ribs 4, and is further connected to the inner cavity of the shell 11 through the oil throwing groove 8, and is used to collect the oil thrown up when the oil stirring gear 1 rotates. In addition, an oil suction port 5 is also provided at the bottom of the oil storage chamber 3, and the oil suction port 5 is located on the inner side of the first oil inlet groove 6.

[0041] It should be noted that since the oil suction port 5 is located on the inner side of the first oil inlet groove 6, when the oil at the bottom of the shell 11 is stirred, it will not affect (or will have a small impact on) the oil in the oil storage chamber 3. Therefore, the oil at the oil suction port 5 generally will not generate bubbles, and the oil suction of the oil pump is less affected, thereby keeping the lubrication and cooling system stable and efficient.

[0042] It needs to be further explained that in Figure 4 At least four middle oil retaining ribs 4 are provided, of which the bottommost oil retaining rib 4 is relatively small, and two longer oil retaining ribs 4 are provided on both sides, and the first oil inlet groove 6 and the second oil inlet groove 7 are formed between the longer oil retaining rib 4 and the smaller oil retaining rib 4. At the same time, a smaller oil retaining rib 4 is also provided on the right side of the oil storage chamber 3, and the oil retaining rib 4 and the adjacent longer oil retaining rib 4 form an oil throwing groove 8, and the horizontal height of the oil throwing groove 8 is greater than the first oil inlet groove 6 and the second oil inlet groove 7. Figure 4 From the perspective of , when the oil stirring gear 1 throws the oil to the right side of the housing 11, the oil can flow through the gap to the opening of the oil throwing groove 8, and then the oil will flow back to the oil storage tank 3 along the oil throwing groove 8.

[0043] exist Figure 4 The oil storage chamber 3 is also connected to the motor oil return chamber 9 for collecting the oil in the motor oil return chamber 9. The motor oil return chamber 9 has a higher level than the oil throwing groove 8. Specifically, the motor oil return chamber 9 can be located at the top of the oil storage chamber 3.

[0044] It should be noted that the oil flows out through the motor oil return chamber 9, collects in the oil storage chamber 3, and then re-enters the cooling system of the motor through the oil suction port 5. The whole process is in a dynamic cycle. The oil storage chamber 3 serves as a channel for oil reflux. By connecting with the motor oil return chamber 9, the oil in the motor oil return chamber 9 is effectively collected.

[0045] exist Figure 4 In the embodiment, the bearing chamber is connected with a bearing chamber oil drain groove 10, and is connected with the oil storage chamber 3 through the bearing chamber oil drain groove 10. Specifically, the bearing chamber oil drain groove 10 is opened on the inner surface of the bearing chamber and is located below the bearing chamber, and is used to collect the leaked oil of the bearing chamber.

[0046] It should be noted that Figure 4 The structure plays multiple roles in the mechanical system, such as collecting leaked lubricating oil, realizing lubricating oil recycling, maintaining proper lubrication of the bearing chamber and improving system reliability.

[0047] In the present utility model, since the volume of the oil storage chamber 3 is relatively small, the stored oil can be easily drained by the oil pump (the oil pump draws oil through the oil suction port 5); in order to avoid empty suction, it is necessary to open a first oil inlet groove 6 and a second oil inlet groove 7 on the outer oil retaining rib 4 of the oil storage chamber 3, for the oil to enter the oil storage chamber 3 and balance the internal and external oil levels. In addition, the oil thrown up by the oil stirring gear 1 can flow back to the oil storage chamber 3 through the oil throwing groove 8, and the oil returned from the motor oil return chamber 9 received by the oil storage chamber 3 and the oil leaked from the bearing chamber oil drain groove 10 can flow directly back to the oil storage chamber 3, jointly assuming the oil supply of the oil storage chamber 3, which can effectively avoid empty suction of the oil suction port 5 in the oil storage chamber 3, and keep the oil level in the oil storage chamber 3 in a dynamic equilibrium state.

[0048] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A shell oil retaining rib structure, characterized in that: It comprises an oil stirring gear (1), an oil baffle plate (2), an oil baffle rib (4) and a housing (11); The oil baffle plate (2) is installed in the inner cavity of the housing (11); The oil stirring gear (1) is rotatably mounted on a surface of the oil baffle plate (2); The oil baffle ribs (4) are provided in a plurality and are located on the housing (11) and on a surface of the oil baffle plate (2) away from the oil stirring gear (1). The internal space enclosed by the plurality of oil baffle ribs (4), the oil baffle plate (2) and the housing (11) serves as an oil storage chamber (3); The oil storage chamber (3) is located in the inner cavity of the housing (11) and is in communication with the inner cavity of the housing (11), and is used to maintain a dynamic balance with the oil height in the inner cavity of the housing (11) and to collect refluxed oil.

2. The shell oil retaining rib structure according to claim 1, characterized in that: The bottom of the oil storage cavity (3) forms a first oil inlet groove (6) and a second oil inlet groove (7) through adjacent and non-contacting oil retaining ribs (4); The first oil inlet groove (6) and the second oil inlet groove (7) of the oil storage cavity (3) are in communication with the inner cavity of the housing (11) and are used to maintain a dynamic balance of liquid level with the oil in the housing (11).

3. The shell oil retaining rib structure according to claim 2, characterized in that: An oil-spinning groove (8) is formed on one side of the oil storage chamber (3) through an adjacent and non-contacting oil-blocking rib (4). The oil storage chamber (3) is connected to the inner cavity of the housing (11) through the oil-spinning groove (8) and is used to collect the oil that is spun off when the oil-stirring gear (1) rotates.

4. The shell oil retaining rib structure according to claim 3, characterized in that: The horizontal height of the oil-slinging groove (8) is greater than that of the first oil-inlet groove (6) and the second oil-inlet groove (7).

5. A casing oil retaining rib structure according to claim 3 or 4, characterized in that: A gap is left between the oil baffle plate (2) and the housing (11) in the radial direction, and when the oil stirring gear (1) rotates, the oil flows through the gap to the opening of the oil throwing groove (8).

6. The shell oil retaining rib structure according to claim 2, characterized in that: The bottom of the oil storage cavity (3) is also provided with an oil suction port (5), and the oil suction port (5) is located inside the first oil inlet groove (6).

7. The shell oil retaining rib structure according to claim 1, characterized in that: The oil storage chamber (3) is also connected to the motor oil return chamber (9) and is used to collect the oil in the motor oil return chamber (9); The horizontal height of the motor oil return chamber (9) is greater than the oil throwing groove (8).

8. The shell oil retaining rib structure according to claim 7, characterized in that: The motor oil return chamber (9) is located at the top of the oil storage chamber (3).

9. The shell oil retaining rib structure according to claim 1, characterized in that: An axial hole is arranged at the center of the oil baffle plate (2), and a bearing chamber is arranged at a position of the housing (11) corresponding to the axial hole. The bearing chamber is connected to a bearing chamber oil drain groove (10), and the bearing chamber is connected to the oil storage chamber (3) through the bearing chamber oil drain groove (10).

10. The shell oil retaining rib structure according to claim 9, characterized in that: The bearing chamber oil drain groove (10) is opened on the inner surface of the bearing chamber and is located below the bearing chamber, and is used to collect oil leaked from the bearing chamber.

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