Oil guide structure of hybrid transmission

Abstract

The application discloses a kind of oil guide structure of hybrid transmission, steering oil guide assembly includes oil passage and O-shaped sealing groove, the O-shaped sealing groove is around the periphery of oil passage end portion, O-shaped sealing groove outer end surface is formed between O-shaped sealing groove and oil passage end portion, the O-shaped sealing ring is assembled in the O-shaped sealing groove of steering oil guide assembly, one end of the steering oil guide assembly is matched with the outer end surface of the waist-shaped sealing groove of left box body, and is fixed after being fixed with left box body by fixed bolt, steering oil guide assembly is matched with the waist-shaped groove of left box body;P2 shell is provided with P2 shell oil hole and sealing surface located at P2 shell oil hole, P2 shell is combined with left box body and is fastened, so that the outer end surface of the O-shaped sealing groove of steering oil guide assembly is matched with the sealing surface to form sealed cooperation, and the oil passage on steering oil guide assembly is matched with P2 shell oil hole.The application can ensure the oil passage butt joint between each part of hybrid transmission box, to realize the smooth oil guide of oil passage.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of hybrid transmission, in particular to a hybrid transmission oil guide structure. BACKGROUND

[0002] In the design process of hybrid transmission, various hydraulic oil channels will be involved. These hydraulic oil channels will be arranged according to the structure, function and interface difference of each part inside the hybrid transmission, but at the same time, they will be affected by various parts (such as hydraulic module, P2 module, shaft system, etc.) and appear the situation that the hydraulic oil channel cannot be directly connected or avoided.

[0003] When the hydraulic oil channel cannot be directly connected or avoided, how to make the hydraulic oil channel connect smoothly and realize the normal steering oil guide function is the current problem. SUMMARY

[0004] The present application provides a hybrid transmission oil guide structure, which can ensure the oil channel connection between each part of the hybrid transmission box to realize smooth oil guide of the oil channel.

[0005] The technical solution to solve the above problem is as follows:

[0006] The hybrid transmission oil guide structure comprises a left box, a P2 shell, a waist type sealing ring, a steering oil guide assembly, a fixing bolt and an O type sealing ring.

[0007] The left box is provided with a left box waist type groove for oil channel steering and oil guide, and is provided with a waist type sealing groove outer end face, and the waist type sealing groove outer end face is provided with a waist type sealing groove, and the waist type sealing ring is assembled in the waist type sealing groove of the left box.

[0008] The steering oil guide assembly comprises an oil channel and an O type sealing groove, the O type sealing groove surrounds the end of the oil channel, an O type sealing groove outer end face is formed between the O type sealing groove and the end of the oil channel, the O type sealing ring is assembled in the O type sealing groove of the steering oil guide assembly, one end of the steering oil guide assembly is matched with the waist type sealing groove outer end face of the left box, and the steering oil guide assembly is fixed with the left box through the fixing bolt, and the steering oil guide assembly is matched with the left box waist type groove.

[0009] The P2 shell is provided with a P2 shell oil hole and a sealing surface located at the P2 shell oil hole, and the P2 shell is combined with the left box and fastened, so that the O type sealing groove outer end face of the steering oil guide assembly is matched with the sealing surface to form a sealed cooperation, and the oil channel on the steering oil guide assembly is matched with the P2 shell oil hole.

[0010] Further, the left box is provided with:

[0011] The oil hole is used for the outflow / inflow of oil in the oil channel, and is matched with the waist-shaped groove of the left box body;

[0012] The threaded hole is threadedly connected with the fixing bolt.

[0013] Further, the end matched with the left box body of the steering oil guide assembly comprises a waist-shaped sealing surface, and the waist-shaped sealing surface comprises:

[0014] The positioning and fastening area is matched with the outer end surface of the waist-shaped sealing groove;

[0015] The sealing area exerts pressure on the waist-shaped sealing ring located in the waist-shaped sealing groove after being matched with the waist-shaped sealing groove;

[0016] The steering oil guide area is used for steering oil guide of the left box body and the P2 shell oil channel, and is matched with the waist-shaped groove of the left box body.

[0017] Further, the other end of the steering oil guide assembly facing the P2 shell is provided with a rib for increasing strength.

[0018] The present application comprises the following beneficial effects:

[0019] 1. In the case that the hydraulic oil channels of various components cannot be directly connected, the present application provides a solution for the connection and oil guide of the hydraulic oil channels without large-scale adjustment of the original oil channel layout.

[0020] 2. The present application has no excessive requirements for the structural arrangement and flow direction of the oil channel, can fully utilize the existing residual space for arrangement, does not need to excessively increase the part boundary, and is beneficial to the miniaturization requirement of the hybrid transmission assembly.

[0021] 3. The present application optimizes the complex oil channel structure, reduces the vehicle space, has a simple structure, compact arrangement, and is easy to assemble, and is beneficial to the economic requirement of the hybrid transmission assembly.

[0022] 4. The present application can be adjusted according to the actual structure, is suitable for the smooth connection of various hydraulic oil channels, and realizes the normal steering oil guide function. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is an explosion view of the oil guide structure of the hybrid transmission of the present application.

[0024] Figure 2 It is a cross-sectional structure schematic view of the present application.

[0025] Figure 3 It is a cross-sectional structure schematic view of another position in the present application.

[0026] Figure 4 It is a structure schematic view of the left box body oil guide area in the present application.

[0027] Figure 5 Figure 1 is a structural schematic diagram of the steering oil guide assembly in the application.

[0028] Figure 6 Figure 2 is a structural schematic diagram of the P2 housing oil guide area in the application.

[0029] Left housing 1, waist type sealing ring 2, steering oil guide assembly 3, rib 3a, fixing bolt 4, O-shaped sealing ring 5, P2 housing 6, oil hole 7, left housing waist type groove 8, threaded hole 9, waist type sealing groove 10, outer end surface of waist type sealing groove 11, waist type sealing surface 12, bolt hole 13, oil channel 14, O-shaped sealing groove 15, positioning and fastening area 16, sealing area 17, steering oil guide area 18, outer end surface of O-shaped sealing groove 19, sealing surface 20, P2 housing oil hole 21. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the application clearer, the technical scheme in the embodiments of the application is described in more detail in combination with the drawings in the embodiments of the application. The described embodiments are part of the embodiments of the application, rather than all the embodiments of the application. The embodiments described by reference to the drawings are exemplary and are intended to explain the application, and cannot be simply understood as a limitation on the application. Based on the embodiments of the application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the application.

[0031] As shown in Figures 1 to 6 , the oil guide structure of the hybrid transmission of the application comprises a left housing 1, a P2 housing 6, a waist type sealing ring 2, a steering oil guide assembly 3, a fixing bolt 4 and an O-shaped sealing ring 5. The following describes each part and its relationship:

[0032] As shown in Figures 1 to 6 , the left housing 1 is provided with a left housing waist type groove 8 for oil channel steering and oil guiding. The left housing 1 is provided with a waist type sealing groove outer end surface 11 which surrounds the left housing waist type groove 8. The waist type sealing groove outer end surface 11 is provided with a waist type sealing groove 10. The waist type sealing ring 2 is fitted in the waist type sealing groove 10 of the left housing 1. The waist type sealing groove 10 is used to support the waist type sealing ring 2 to form a seal for the oil in the left housing waist type groove 8 and ensure smooth steering and oil guiding.

[0033] As shown in Figures 1 to 6 , the left housing 1 is provided with an oil hole 7 for the outflow / inflow of the oil in the oil channel. The oil hole 7 cooperates with the left housing waist type groove 8. The left housing 1 is also provided with a threaded hole 9 which is threadedly connected with the fixing bolt 4. The model of the fixing bolt 4 is M6X20.

[0034] As Figures 1 to 6 shown, the steering oil guide assembly 3 includes an oil channel 14 and an O-shaped sealing groove 15, the O-shaped sealing groove 15 is around the end of the oil channel 14, the oil channel 14 is cylindrical, and an O-shaped sealing groove outer end face 19 is formed between the O-shaped sealing groove 15 and the end of the oil channel 14, the O-shaped sealing ring 5 is fitted in the O-shaped sealing groove 15 of the steering oil guide assembly 3, one end of the steering oil guide assembly 3 is matched with the waist-shaped sealing groove outer end face 11 of the left box body 1, and after being fixed with the left box body 1 by the fixing bolt 4, the steering oil guide assembly 3 is matched with the waist-shaped groove 8 of the left box body.

[0035] As Figures 1 to 6 shown, the end of the steering oil guide assembly 3 matched with the left box body 1 includes a waist-shaped sealing surface 12, the waist-shaped sealing surface 12 includes a positioning and fastening area 16, a sealing area 17, and a steering oil guide area 18, the positioning and fastening area 16 is matched with the waist-shaped sealing groove outer end face 11, the positioning and fastening area 16 is used for the steering oil guide assembly 3 to be positioned and installed on the waist-shaped sealing groove outer end face 11 of the left box body 1, bolt holes 13 are provided on the positioning and fastening area 16, the fixing bolt 4 is connected with the threaded hole 9 after passing through the bolt hole 13, so that the steering oil guide assembly 3 is fastened with the left box body 1 as a whole. The positioning and fastening area 16 is preferably provided in a waist shape.

[0036] As Figures 1 to 6 shown, after the sealing area 17 is matched with the waist-shaped sealing groove 10, pressure is applied to the waist-shaped sealing ring 2 located in the waist-shaped sealing groove 10, that is, the sealing area 17 is used to realize the sealing of the oil channel together with the structure of the waist-shaped sealing groove 10 and the waist-shaped sealing ring 2 on the left box body 1, so as to ensure that the oil does not leak when flowing through the oil channel at the joint position.

[0037] As Figures 1 to 6 shown, the sealing area 17 can be a convex part protruding from the positioning and fastening area 16, and the sealing area 17 is in a waist shape. The steering oil guide area 18 is used for steering oil guide of the oil channel of the left box body 1 and the P2 shell 6, and the steering oil guide area 18 is matched with the waist-shaped groove 8 of the left box body.

[0038] As Figures 1 to 6 shown, the other end of the steering oil guide assembly 3 facing the P2 shell 6 is provided with a rib 3a for increasing strength. The overall strength of the steering oil guide assembly 3 is increased by the rib 3a, and the rib 3a is fixedly connected with the positioning and fastening area 16.

[0039] As Figures 1 to 6As shown, the P2 housing 6 is provided with a P2 housing oil hole 21 and a sealing surface 20 located at the P2 housing oil hole 21. After the P2 housing 6 is combined with the left housing 1 and fastened, the outer end surface 19 of the O-shaped sealing groove of the steering oil guiding assembly 3 is in sealing cooperation with the sealing surface 20, and the oil channel 14 on the steering oil guiding assembly 3 is in cooperation with the P2 housing oil hole 21, so that the oil liquid can not leak when flowing through the oil channel.

[0040] As shown in the figure, when the oil liquid enters from the left housing oil hole 7, the flow route of the oil liquid is oil hole 7→left housing waist-shaped groove 8→steering oil guiding area 18→oil channel 14→P2 housing oil hole 21. In this process, the fixing bolt 4 fixes the steering oil guiding assembly 3 and the waist-shaped sealing ring 2 on the left housing 1, and the sealing surface 20 fixes the O-shaped sealing ring 5, so that the waist-shaped sealing ring 2 and the O-shaped sealing ring 5 are used to seal the entire oil guiding structure. Figures 1 to 6 As shown in the figure, when the oil liquid enters from the P2 housing oil hole 21, the flow route of the oil liquid is P2 housing oil hole 21→oil channel 14→steering oil guiding area 18→left housing waist-shaped groove 8→oil hole 7. In this process, the sealing surface 20 fixes the O-shaped sealing ring 5, and the fixing bolt 4 fixes the steering oil guiding assembly 3 and the waist-shaped sealing ring 2 on the left housing 1, so that the waist-shaped sealing ring 2 and the O-shaped sealing ring 5 are used to seal the entire oil guiding structure.

[0041] Figures 1 to 6 As shown in the figure, when the oil liquid enters from the P2 housing oil hole 21, the flow route of the oil liquid is P2 housing oil hole 21→oil channel 14→steering oil guiding area 18→left housing waist-shaped groove 8→oil hole 7. In this process, the sealing surface 20 fixes the O-shaped sealing ring 5, and the fixing bolt 4 fixes the steering oil guiding assembly 3 and the waist-shaped sealing ring 2 on the left housing 1, so that the waist-shaped sealing ring 2 and the O-shaped sealing ring 5 are used to seal the entire oil guiding structure.

[0042] The steering oil guiding structure is used for intermediate butt joint, which can smoothly realize steering oil guiding and ensure that the entire steering oil guiding structure can withstand repeated impact of oil liquid pressure and maintain the sealing property of the oil channel.​

Claims

1. An oil guide structure of a hybrid transmission, comprising a left case (1) and a P2 housing (6), characterized in that, Also include the waist type sealing ring (2), steering oil guide assembly (3), fixed bolt (4), O type sealing ring (5); The left box body (1) is provided with a left box body waist type groove (8) for oil channel steering and oil guide, and is provided with a waist type sealing groove outer end face (11). The waist type sealing groove outer end face (11) is provided with a waist type sealing groove (10). The waist type sealing ring (2) is assembled in the waist type sealing groove (10) of the left box body (1). The steering oil guide assembly (3) includes an oil channel (14) and an O type sealing groove (15). The O type sealing groove (15) surrounds the end of the oil channel (14). An O type sealing groove outer end face (19) is formed between the O type sealing groove (15) and the end of the oil channel (14). The O type sealing ring (5) is assembled in the O type sealing groove (15) of the steering oil guide assembly (3). One end of the steering oil guide assembly (3) cooperates with the waist type sealing groove outer end face (11) of the left box body (1) and is fixed to the left box body (1) through the fixed bolt (4). The steering oil guide assembly (3) cooperates with the left box body waist type groove (8). The end of the steering oil guide assembly (3) that cooperates with the left box body (1) includes a waist type sealing surface (12). The waist type sealing surface (12) includes: A positioning and fastening area (16) that cooperates with the waist type sealing groove outer end face (11); A sealing area (17) that applies pressure to the waist type sealing ring (2) in the waist type sealing groove (10) after cooperating with the waist type sealing groove (10); A steering oil guide area (18) for steering and oil guiding of the oil channel of the left box body (1) and the P2 shell (6). The steering oil guide area (18) cooperates with the left box body waist type groove (8); The P2 shell (6) is provided with a P2 shell oil hole (21) and a sealing surface (20) located at the P2 shell oil hole (21). After the P2 shell (6) is combined with the left box body (1) and fastened, the O type sealing groove outer end face (19) of the steering oil guide assembly (3) forms a sealed cooperation with the sealing surface (20). The oil channel (14) on the steering oil guide assembly (3) cooperates with the P2 shell oil hole (21).

2. The oil guiding structure of the hybrid transmission according to claim 1, characterized by, The left box body (1) is provided with: An oil hole (7) for the outflow / inflow of oil in the oil channel. The oil hole (7) cooperates with the left box body waist type groove (8); A threaded hole (9) that is threadedly connected with the fixed bolt (4).

3. The oil guiding structure of the hybrid transmission according to claim 1, characterized by, The other end of the steering oil guide assembly (3) facing the P2 shell (6) is provided with a rib (3a) for increasing strength.

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