Oil pan for engine

Abstract

The embodiment of the utility model provides an oil pan for an engine. The oil pan comprises a shell, a first baffle and a second baffle. The shell is specifically a cavity with an opening in one surface, the shell is provided with a mounting surface, and the mounting surface is opposite to the bottom surface of the shell; a first clamping lattice structure is arranged in the side face of the shell, and the first baffle is fixedly connected with the shell through the first clamping lattice structure; a second clamping lattice structure is arranged in the side face of the shell, and the second baffle is fixedly connected with the shell through the second clamping lattice structure. An oil drain plug hole is formed in the side face of the shell. The oil pan is simple in structure, and the forming machining difficulty and the manufacturing cost are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of engines, in particular to an oil pan for an engine. Background Art

[0002] The oil pan is located at the bottom of the engine and is detachable. It is a shell that seals the crankshaft oil pan and serves as an oil storage tank. The function of the oil pan is to seal the crankcase as the shell of the oil storage tank to prevent impurities from entering, and to collect and store the lubricating oil flowing back from the friction surfaces of the diesel engine, dissipate some heat, and prevent the lubricating oil from oxidizing. The oil pan is generally stamped from thin steel plates, and is equipped with an oil stabilizing baffle inside to avoid oil surface vibration and splashing caused by the diesel engine bumping, which is conducive to the precipitation of lubricating oil impurities. The steel plate stamping oil pan is heavy and noisy; at the same time, the steel plate stamping needs to be split into multiple parts for complex structures and then assembled and connected. On the one hand, it requires higher mold design and manufacturing costs, and on the other hand, the assembly and molding of the product requires additional processes, and the manufacturing process cost is high. .

[0003] It can be seen that in the prior art, the production cost of the oil pan for the engine is relatively high. Utility Model Content

[0004] The purpose of the embodiment of the utility model is to provide an oil pan for an engine, so as to reduce the oil pan and reduce the manufacturing cost. The specific technical solution is as follows:

[0005] An oil pan for an engine, the oil pan comprising a shell, a first baffle and a second baffle;

[0006] The shell is specifically a cavity with one side open, and the shell is provided with a mounting surface, and the mounting surface is opposite to the bottom surface of the shell;

[0007] A first latch structure is provided inside the side surface of the shell, and the first baffle is fixedly connected to the shell through the first latch structure;

[0008] A second latch structure is provided inside the side surface of the shell, and the second baffle is fixedly connected to the shell through the second latch structure;

[0009] An oil drain plug hole is arranged on the side of the housing.

[0010] Optionally, a sealing groove is provided on the mounting surface, a mounting hole is provided outside the sealing groove, and a glue removal groove is provided on the end surface below the mounting hole for uniform wall thickness.

[0011] Optionally, a rubber sealing gasket is installed in the sealing groove.

[0012] Optionally, a mounting bolt is installed in the mounting hole, and the oil pan is connected to the cylinder body through the mounting bolt.

[0013] Optionally, the mounting bolt includes a metal sleeve and a metal bolt, and the metal sleeve and the metal bolt are fixedly connected.

[0014] Optionally, the mounting bolt is fixed in the mounting hole by a limiting structure, or is fixed in the mounting hole by an interference fit, or is fixed in the mounting hole by bonding.

[0015] Optionally, the outer surface of the shell 1 is provided with rhombus-distributed and criss-crossed reinforcing ribs.

[0016] Optionally, an oil drain insert is fixed in the oil drain plug hole, and the housing and the oil drain plug are fixedly connected via the oil drain insert.

[0017] Optionally, the mounting holes are arranged in a specific manner as follows: 11 holes are arranged in each of the two long sides and are evenly arranged, and 4 holes are arranged in each of the two short sides.

[0018] Optionally, the shell, the first baffle and the second baffle are all integrally formed by injection molding.

[0019] Compared with the prior art, the shell, first baffle and second baffle of the oil pan of this embodiment are all injection-molded fiber-reinforced thermoplastic composite materials, with a simple structure, which reduces the difficulty of molding and production costs. Accessories such as the oil drain insert are all integrated on the injection-molded shell to form an oil pan assembly, which greatly reduces the weight of the product and can reduce the noise pollution generated by the car during driving. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] 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 only 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.

[0021] Figure 1 A top view of a three-dimensional structural schematic diagram of an embodiment of an engine oil pan provided by the utility model;

[0022] Figure 2 A front view of a three-dimensional structural schematic diagram of an embodiment of an engine oil pan provided by the utility model;

[0023] Figure 3 A bottom view of a three-dimensional structural schematic diagram of an embodiment of an engine oil pan provided by the utility model;

[0024] in, Figures 1 to 3 The corresponding relationship between the component names and the corresponding reference numerals is as follows:

[0025] 1 housing, 11 mounting surface, 12 first latch structure, 13 second latch structure, 14 drain plug hole, 15 sealing groove, 16 mounting hole, 17 glue removal groove;

[0026] 2 first baffle;

[0027] 3 second baffle;

[0028] 4 rubber sealing pads;

[0029] 5. Mounting bolts;

[0030] 6 Drain the oil insert. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0032] It should be noted that the directional words "up" and "down", "top" and "bottom", "front" and "back" in this embodiment are based on Figure 2 The positions of the oil sump embodiments shown are defined as references.

[0033] Please combine Figures 1 to 3 , Figure 1 This is a top view of the three-dimensional structure schematic diagram of the oil pan embodiment provided by the utility model. Figure 2 It is a front view of a three-dimensional structural schematic diagram of an embodiment of an engine oil pan provided by the utility model; Figure 3 This is a bottom view of the three-dimensional structure schematic diagram of an embodiment of the engine oil pan provided by the utility model. Figures 1 to 3 As shown, the oil pan provided in this embodiment includes a shell 1, a first baffle plate 2 and a second baffle plate 3; the shell 1 is specifically a cavity with an opening on one side, and the shell 1 is provided with a mounting surface 11, and the mounting surface 11 is opposite to the bottom surface of the shell 1; a first lattice structure 12 is provided inside the side surface of the shell 1, and the first baffle plate 2 is fixedly connected to the shell 1 through the first lattice structure 12; a second lattice structure 13 is provided inside the side surface of the shell 1, and the second baffle plate 3 is fixedly connected to the shell 1 through the second lattice structure 13; an oil drain plug hole 14 is provided on the side surface of the shell 1.

[0034] The mounting surface 11 is located on the open side of the housing 1 , that is, the mounting surface 11 is located on the upper surface of the housing 1 , and the mounting surface 11 and the bottom surface of the housing 1 are opposite to each other.

[0035] Specifically, the side of the housing 1 is provided with an oil drain plug hole 14. Figure 2 In this embodiment, the number of the drain plug holes 14 is specifically 6, which are arranged on two opposite sides, front and rear, and three drain plug holes 14 are arranged on each side.

[0036] An oil drain plug 6 is fixed in each drain plug hole 14, and the housing 1 and the oil drain plug are fixedly connected through the oil drain plug 6. The oil drain plug is used to block the oil drain plug hole 14. In actual application, when the engine oil in the housing 1 needs to be drained, the oil drain plug can be removed to allow the engine oil to flow out through the oil drain plug hole 14; when the engine needs to seal the engine oil in the housing 1 during operation, or when the engine oil in the housing 1 does not need to flow out, the oil drain plug can be installed into the oil drain plug hole 14 through the oil drain plug 6, and the housing 1 and the oil drain plug are sealed and fixedly connected through the oil drain plug 6, ensuring that the engine oil will not leak through the oil drain plug hole 14.

[0037] More specifically, the oil drain insert 6 can be fixed in the oil drain plug hole 14 by pre-embedding, that is, before the shell is injection molded, the oil drain insert 6 is placed in the corresponding position of the mold, so that the oil drain insert 6 is directly molded in the oil drain plug hole 14 on the shell 1; or, the oil drain insert 6 can also be fixed to the oil drain plug hole 14 by bonding, or fixed to the oil drain plug hole 14 by interference fit, or fixed to the oil drain plug hole 14 by a limiting structure.

[0038] A sealing groove 15 is provided on the mounting surface 11 , a mounting hole 16 is provided outside the sealing groove 15 , and a glue removal groove 17 is provided on the end surface below the mounting hole 16 for uniform wall thickness.

[0039] Specifically, participate in Figure 1 In this embodiment, the number of the mounting holes 16 is specifically 30. More specifically, the mounting holes 16 are arranged in such a way that 11 holes are arranged in each of the two long sides and are evenly arranged, and 4 holes are arranged in each of the two short sides. Figure 3 In this embodiment, a glue removal groove 17 is specifically provided on the end surface below each mounting hole 16 .

[0040] The shell 1 , the first baffle 2 and the second baffle 3 of the oil pan are all made of fiber-reinforced thermoplastic composite material by injection molding.

[0041] Compared with the prior art, the engine oil pan of the present embodiment is injection-molded fiber-reinforced thermoplastic composite material, has a simple structure, reduces the difficulty of molding and manufacturing cost, and the oil drain insert and the like are all integrated on the injection-molded shell to form an oil pan assembly, which greatly reduces the weight of the product and can reduce the noise pollution generated by the car during driving.

[0042] Furthermore, in order to ensure the airtightness between the oil pan and the cylinder body, a rubber seal 4 is installed in the sealing groove 15. The elasticity of rubber is used to ensure the airtightness between the oil pan and the cylinder body, and rubber has good wear resistance, so that the rubber seal 4 can be recycled after the oil pan is disassembled.

[0043] Furthermore, in order to improve the overall mounting strength of the oil pan, mounting bolts 5 are installed in the mounting holes 16 , and the oil pan is connected to the cylinder block via the mounting bolts 5 .

[0044] Specifically, in practical applications, the mounting bolt 5 includes a metal sleeve and a metal bolt, and the metal sleeve and the metal bolt are fixedly connected.

[0045] More specifically, in order to stably fix the mounting bolt 5 in the mounting hole 16 and ensure the connection strength, the mounting bolt 5 can be fixed in the mounting hole 16 by a limiting structure. For example, a limiting structure can be set in the mounting hole 16, or a limiting structure can be set on the metal sleeve of the mounting bolt 5 to fix the mounting bolt 5 in the mounting hole 16; or it can be fixed in the mounting hole 16 by an interference fit, or it can be fixed in the mounting hole 16 by bonding.

[0046] In order to improve the rigidity and strength of the oil pan, the outer surface of the housing 1 is provided with rhombus-distributed and criss-crossed reinforcing ribs.

[0047] Specifically, participate in Figure 3 In this embodiment, the transverse reinforcing ribs are arranged in parallel, and the spacing between two adjacent transverse reinforcing ribs is specifically 10-15mm; the longitudinal reinforcing ribs are arranged in parallel, and the spacing between two adjacent longitudinal reinforcing ribs is specifically 46-55mm; the rhombus-distributed reinforcing ribs are evenly distributed in parallel, and the spacing between two adjacent rhombus sides is specifically 40-60mm. Through the criss-cross reinforcing ribs and the rhombus-distributed reinforcing ribs, not only can the product rigidity be increased, but also the noise problem of the metal oil pan during driving can be solved, and the impact resistance and high strength of the oil pan product can be solved.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. An oil pan for an engine, characterized in that: The oil pan comprises a housing (1), a first baffle (2) and a second baffle (3); The shell (1) is specifically a cavity with one side open, and the shell (1) is provided with a mounting surface (11), and the mounting surface (11) is opposite to the bottom surface of the shell (1); A first latch structure (12) is provided inside the side surface of the shell (1), and the first baffle (2) is fixedly connected to the shell (1) via the first latch structure (12); A second latch structure (13) is provided inside the side surface of the shell (1), and the second baffle (3) is fixedly connected to the shell (1) via the second latch structure (13); An oil drain plug hole (14) is provided on the side of the housing (1).

2. The oil sump according to claim 1, characterized in that: A sealing groove (15) is provided on the installation surface (11), a mounting hole (16) is provided outside the sealing groove (15), and a glue removal groove (17) is provided on the end surface below the mounting hole (16) for uniform wall thickness.

3. The oil sump according to claim 2, characterized in that: A rubber sealing pad (4) is installed in the sealing groove (15).

4. The oil sump according to claim 3, characterized in that: A mounting bolt (5) is installed in the mounting hole (16), and the oil pan is connected to the cylinder body via the mounting bolt (5).

5. The engine oil pan according to claim 4, characterized in that: The mounting bolt (5) comprises a metal sleeve and a metal bolt, and the metal sleeve and the metal bolt are fixedly connected.

6. The engine oil pan according to claim 5, characterized in that: The mounting bolt (5) is fixed in the mounting hole (16) by means of a limiting structure, or is fixed in the mounting hole (16) by means of an interference fit, or is fixed in the mounting hole (16) by means of bonding.

7. The engine oil pan according to claim 6, characterized in that: The outer surface of the shell 1 is provided with rhombus-shaped and criss-crossed reinforcing ribs.

8. The engine oil pan according to claim 7, characterized in that: An oil drain plug (6) is fixed in the oil drain plug hole (14), and the housing (1) and the oil drain plug are fixedly connected via the oil drain plug insert (6).

9. The engine oil pan according to claim 8, characterized in that: The specific arrangement of the mounting holes (16) is that 11 holes are arranged in each of the two long sides and are evenly arranged, and 4 holes are arranged in each of the two short sides.

10. The engine oil pan according to claim 9, characterized in that: The housing (1), the first baffle (2) and the second baffle (3) are all integrally formed by injection molding.

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