Transfer case shell

Abstract

The utility model relates to a transfer case shell which comprises a shell body, the shell body is provided with a first cavity and a second cavity, the side wall of the first cavity is provided with a first shaft hole and a vent hole, the side wall of the second cavity is provided with a second shaft hole, and the depth of the first cavity is larger than that of the second cavity. An oil baffle plate is arranged in the first cavity, the top end of the oil baffle plate is connected with the top wall of the first cavity, the side end of the oil baffle plate is connected with the side wall of the first cavity, and the axis of the oil baffle plate in the length direction is perpendicular to the axis of the first shaft hole. The transfer case has the effect of preventing oil from splashing out of the transfer case shell from the vent hole in the transfer case operation process.

Description

Technical Field

[0001] The utility model relates to the field of automotive parts, and particularly to a transfer case housing. Background Art

[0002] A transfer case is provided on a vehicle with a four-wheel drive system to distribute the power output from the transmission to each drive axle. Inside the transfer case is a gear transmission system, and a large amount of heat is generated when each component operates. To discharge the air pressure generated by high temperature inside the transfer case to the outside air and balance the internal and external air pressures, vent holes communicating with the outside are provided on the housing of the transfer case. However, since a large amount of oil fluid is driven when each component inside the transfer case operates, the oil fluid will splash out of the upper housing through the vent holes. How to prevent the oil fluid from splashing out of the transfer case through the vent holes has become a problem. Summary of the Utility Model

[0003] This application provides a transfer case housing that can prevent oil fluid from splashing out of the transfer case housing during the operation of the transfer case.

[0004] A transfer case housing provided by this application adopts the following technical solution:

[0005] A transfer case housing includes a housing. A first chamber and a second chamber are provided on the housing. A first shaft hole and a vent hole are formed on the side wall of the first chamber. A second shaft hole is formed on the side wall of the second chamber. The depth of the first chamber is greater than that of the second chamber. An oil baffle is provided inside the first chamber. The top end of the oil baffle is connected to the top wall of the first chamber, the side end of the oil baffle is connected to the side wall of the first chamber, and the axis of the length direction of the oil baffle is perpendicular to the axis of the first shaft hole.

[0006] By adopting the above technical solution, the greater depth of the first chamber than that of the second chamber makes it difficult for the components installed in the second chamber to splash the oil fluid into the vent hole during operation. And an oil baffle is provided to prevent the oil fluid driven by the operation of the components installed in the first chamber from splashing into the vent hole.

[0007] Preferably, a first fixing column connected to the bottom end of the oil baffle is further provided inside the first chamber. The axis of the first fixing column is parallel to the axis of the first shaft hole, and the end of the first fixing column away from the side wall of the first chamber is flush with the end of the oil baffle away from the side wall of the first chamber.

[0008] By adopting the above technical solution, the first fixing column is provided to enhance the connection strength between the oil baffle and the housing.

[0009] Preferably, a oil collecting cavity is formed by the downward convexity of the bottom wall of the first chamber. The first fixing post is located on the side of the oil baffle plate close to the first shaft hole. A first guiding inclined surface is formed between the first fixing post and the oil baffle plate, and the first guiding inclined surface is used to guide the oil liquid into the oil collecting cavity.

[0010] By adopting the above technical solution, after the oil baffle plate blocks the splashing oil liquid, the oil liquid will slide down along the oil baffle plate and be guided into the oil collecting cavity through the second guiding inclined surface.

[0011] Preferably, a second guiding inclined surface is provided on the side wall of the first chamber facing the first shaft hole. The second guiding inclined surface is located on the side of the oil baffle plate away from the first shaft hole, and the second guiding inclined surface is used to guide the oil liquid into the oil collecting cavity.

[0012] By adopting the above technical solution, when the transfer case starts, the splashing oil liquid will impact and adhere to the second guiding inclined surface, and through the guidance of the second guiding inclined surface, the oil liquid will reflow into the oil collecting cavity.

[0013] Preferably, a first connecting plate is provided on the outer wall of the second chamber. The first connecting plate is located on the side of the second inclined surface away from the first shaft hole. One end of the first connecting plate is connected to the outer wall of the second chamber in a separated manner, and the other end is connected to the side wall of the first chamber where the second guiding inclined surface is provided.

[0014] By adopting the above technical solution, the strength of the side wall of the first chamber is enhanced by setting the first connecting plate, thereby improving the anti-impact performance of the second guiding inclined surface and reducing the vibration noise generated on the side wall of the first chamber when the oil liquid impacts the second guiding inclined surface.

[0015] Preferably, the top end of the oil baffle plate is arranged in a gradually expanding shape from the side far away from the top wall of the first chamber to the side close to the first chamber, and the side end of the oil baffle plate is arranged in a gradually expanding shape from the side far away from the side wall of the first chamber to the side close to the first chamber.

[0016] By adopting the above technical solution, the connection strength between the oil baffle plate and the housing is enhanced, thereby reducing the vibration noise generated when the oil baffle plate is impacted by the oil liquid.

[0017] Preferably, a first top plate for supporting the oil baffle plate is provided on the side wall of the first chamber. The end of the first top plate far away from the first chamber extends along the axis direction of the first shaft hole, and the first top plate is connected to the middle part of the oil baffle plate.

[0018] By adopting the above technical solution, when the transfer case is working, the oil liquid mainly impacts the middle and lower parts of the oil baffle plate. Therefore, the first top plate is provided to further enhance the connection strength between the middle and lower parts of the oil baffle plate and the housing, so that the oil baffle plate can effectively block the splashing oil liquid and will not generate excessive vibration noise when blocking the oil liquid.

[0019] Preferably, the first top plate is located between the oil baffle and the second guiding inclined surface. One end of the first top plate is connected to the second guiding inclined surface, and the other end is connected to the oil baffle. The axis in the length direction of the first top plate is perpendicular to the axis in the length direction of the oil baffle.

[0020] By adopting the above technical solution, the first top plate can connect the oil baffle and the second guiding inclined surface together, thereby enhancing the overall structural strength of the housing and reducing the working noise generated by the housing during the operation of the transfer case.

[0021] The technical effects of the present utility model are mainly reflected in the following aspects:

[0022] 1. The depth of the first chamber of the present utility model is greater than that of the second chamber, so that the components installed in the second chamber are not likely to splash oil into the vent hole during operation. And an oil baffle is provided to prevent the oil splashed by the components installed in the first chamber during operation from splashing into the vent hole;

[0023] 2. The present utility model enhances the strength of the side wall of the first chamber by providing a first connecting plate, thereby improving the anti-impact performance of the second guiding inclined surface and reducing the vibration noise generated by the side wall of the first chamber when the oil impacts the second guiding inclined surface;

[0024] 3. The present utility model enhances the overall structural strength of the housing by providing a first top plate and reduces the working noise generated by the vibration of the housing during the operation of the transfer case. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic structural diagram of the transfer case housing of this embodiment.

[0026] Figure 2 is a schematic structural diagram of the housing of this embodiment from another angle.

[0027] Reference numerals: 1, housing; 11, first chamber; 12, second chamber; 13, first shaft hole; 14, vent hole; 15, second shaft hole; 16, oil collecting chamber; 17, first guiding inclined surface; 18, second guiding inclined surface; 2, oil baffle; 3, first fixing column; 4, first connecting plate; 5, first top plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The following further describes the present application in detail with reference to the drawings, so that the technical solution of the present application is easier to understand and master.

[0029] Refer to Figure 1, a transfer case housing of this embodiment includes a housing 1, on which a first chamber 11 and a second chamber 12 are provided. The depth of one chamber is greater than that of the second chamber 12. A sump 16 is formed by the downward protrusion of the bottom wall of the first chamber 11. A second shaft hole 15 is provided in the side wall of the second chamber 12 along the X-axis direction, and a first shaft hole 13 and a vent hole 14 are provided in the side wall of the first chamber 11 along the X-axis direction. The vent hole 14 is located between the first shaft hole 13 and the second shaft hole 15, and the sump 16 is located below the first shaft hole 13.

[0030] Referring to Figure 1 , a baffle 2 is also fixedly connected in the first chamber 11. The baffle 2 is located between the vent hole 14 and the first shaft hole 13. The top end of the baffle 2 is fixedly connected to the top wall of the first chamber 11, and the side end of the baffle 2 is fixedly connected to the side wall of the first chamber 11. The axis in the length direction of the baffle 2 is perpendicular to the axis of the first shaft hole 13. The top end of the baffle 2 is arranged in a gradually expanding shape from the side far away from the top wall of the first chamber 11 to the side close to the first chamber 11, and the side end of the baffle 2 is arranged in a gradually expanding shape from the side far away from the side wall of the first chamber 11 to the side close to the side wall of the first chamber 11.

[0031] Referring to Figure 1 , a first fixing column 3 is also fixedly connected in the first chamber 11. The axis of the first fixing column 3 is parallel to the axis of the first shaft hole 13. The first fixing column 3 is located on the side of the baffle 2 close to the first shaft hole 13 and above the sump 16. The first fixing column 3 is fixedly connected to the bottom end of the baffle 2. The end of the first fixing column 3 far away from the side wall of the first chamber 11 is flush with the end of the baffle 2 far away from the side wall of the first chamber 11. A first guiding slope 17 is formed between the first fixing column 3 and the baffle 2, and the first guiding slope 17 is used to guide the oil to the sump 16.

[0032] Referring to Figure 1 and Figure 2 , a second guiding slope 18 is provided on the side wall of the first chamber 11 facing the first shaft hole 13. The second guiding slope 18 is located on the side of the baffle 2 far away from the first shaft hole 13, and the second guiding slope 18 is used to guide the oil to the sump 16. A first connecting plate 4 is fixedly connected to the outer wall of the second chamber 12. The first connecting plate 4 is located on the side of the second slope far away from the first shaft hole 13. One end of the first connecting plate 4 is fixedly connected to the outer wall of the second chamber 12, and the other end is fixedly connected to the side wall of the first chamber 11 provided with the second guiding slope 18. Through the cooperation of the first guiding slope 17 and the second guiding slope 18, the splashed oil can be effectively guided into the sump 16.

[0033] Referring to Figure 1, a first top plate 5 for supporting the oil baffle 2 is fixedly connected to the side wall of the first chamber 11. The first top plate 5 is located between the second guiding slope 18 and the oil baffle 2, and at the same time, the first top plate 5 is located above the vent hole 14. The axis in the length direction of the first top plate 5 is perpendicular to the axis in the length direction of the oil baffle 2. One end of the first top plate 5 away from the first chamber 11 extends along the axis direction of the first shaft hole 13. One end of the first top plate 5 is fixedly connected to the second guiding slope 18, and the other end is fixedly connected to the middle part of the oil baffle 2. By providing the first top plate 5, the overall structural strength of the housing 1 is improved, and the working noise generated by the vibration of the housing 1 during the operation of the transfer case is reduced.

[0034] Certainly, the above are only typical examples of the present application. In addition, the present application can also have many other specific implementation manners. Any technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection required by the present application.

Claims

1. A transfer case housing, comprising a housing (1), wherein a first chamber (11) and a second chamber (12) are provided on the housing (1), a first shaft hole (13) and a ventilation hole (14) are formed in the side wall of the first chamber (11), and a second shaft hole (15) is formed in the side wall of the second chamber (12), and it is characterized in that: The depth of the first chamber (11) is greater than that of the second chamber (12). An oil baffle (2) is provided in the first chamber (11). The top end of the oil baffle (2) is connected to the top wall of the first chamber (11), and the side end of the oil baffle (2) is connected to the side wall of the first chamber (11). The axis of the length direction of the oil baffle (2) is perpendicular to the axis of the first shaft hole (13).

2. The transfer case housing according to claim 1, characterized in that: A first fixing column (3) connected to the bottom end of the oil baffle (2) is further provided in the first chamber (11). The axis of the first fixing column (3) is parallel to the axis of the first shaft hole (13), and the end of the first fixing column (3) away from the side wall of the first chamber (11) is flush with the end of the oil baffle (2) away from the side wall of the first chamber (11).

3. The transfer case housing according to claim 2, wherein: A oil collecting cavity (16) is formed by the downward protrusion of the bottom wall of the first chamber (11). The first fixing column (3) is located on the side of the oil baffle (2) close to the first shaft hole (13). A first guiding inclined surface (17) is formed between the first fixing column (3) and the oil baffle (2), and the first guiding inclined surface (17) is used to guide the oil liquid into the oil collecting cavity (16).

4. The transfer case housing according to claim 3, wherein: A second guiding inclined surface (18) is provided on the side wall of the first chamber (11) facing the first shaft hole (13). The second guiding inclined surface (18) is located on the side of the oil baffle (2) away from the first shaft hole (13), and the second guiding inclined surface (18) is used to guide the oil liquid into the oil collecting cavity (16).

5. A transfer case housing according to claim 4, characterized in that: A first connecting plate (4) is provided on the outer wall of the second chamber (12). The first connecting plate (4) is located on the side of the second inclined surface away from the first shaft hole (13). One end of the first connecting plate (4) is detachably connected to the outer wall of the second chamber (12), and the other end is connected to the side wall of the first chamber (11) provided with the second guiding inclined surface (18).

6. The transfer case housing according to claim 1, characterized in that: The top end of the oil baffle (2) is arranged in a gradually expanding shape from the side away from the top wall of the first chamber (11) to the side close to the first chamber (11), and the side end of the oil baffle (2) is arranged in a gradually expanding shape from the side away from the side wall of the first chamber (11) to the side close to the first chamber (11).

7. The transfer case housing according to claim 3, characterized in that: A first top plate (5) for supporting the oil baffle (2) is provided on the side wall of the first chamber (11). The end of the first top plate (5) away from the first chamber (11) extends along the axis direction of the first shaft hole (13), and the first top plate (5) is connected to the middle part of the oil baffle (2).

8. A transfer case housing according to claim 7, characterized in that: The first top plate (5) is located between the oil baffle (2) and the second guiding inclined surface (18). One end of the first top plate (5) is connected to the second guiding inclined surface (18), and the other end is connected to the oil baffle. The axis of the length direction of the first top plate (5) is perpendicular to the axis of the length direction of the oil baffle (2).

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