Diesel engine oil pan

Abstract

The utility model relates to a diesel engine oil pan which comprises an oil storage portion at the front end and a front axle installation portion at the rear end, and a common top face flange face is arranged above the oil storage portion and the front axle installation portion and used for being fixedly connected with an engine cylinder body. The rear end of the front axle installation part is provided with a rear plate used for being fixed to a flywheel shell. The front axle assembly is characterized in that a step-shaped bottom plate is arranged below the oil storage part and the front axle mounting part, and the step-shaped bottom plate is composed of an oil storage cavity bottom plate at a relatively low position, a mounting part bottom plate at a relatively high position and a large-fillet connecting bottom plate connected between the oil storage cavity bottom plate and the mounting part bottom plate in a transition mode. The tractor effectively solves the problems that when a conventional tractor carrying a plane and equal-depth oil pan works in narrow and small spaces such as a greenhouse and an orchard, the turning radius is large, the height of a tractor body interferes with the top of the greenhouse, the working efficiency is low, and the whole area cannot be covered. The tractor with the oil pan has the unique advantages of reducing the height of the whole tractor and improving the turning flexibility.

Description

Technical Field

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

[0002] At present, in order to improve the operation efficiency of tractors in low and narrow spaces such as greenhouses and orchards, it is necessary for tractors to minimize the turning radius and reduce the overall height of the machine to the greatest extent. This requires the position of the oil pan connecting the front axle of the tractor to be moved backward and the thickness of the oil pan at the connection to be thinned. However, moving the front axle backward on the existing conventional "flat" and "equal-depth" oil pans will cause an increase in the height of the tractor, not meeting the supporting requirements. Content of the Utility Model

[0003] The purpose of the utility model is to solve the problem that the existing conventional "flat" and "equal-depth" oil pans cannot achieve the backward movement of the front axle of the tractor on the premise of reducing the height, and provide an oil pan for a diesel engine. The oil pan for a diesel engine adopts a stepped shape, with a deeper front and a shallower rear. The front end stores lubricating oil, and the rear end is close to the bottom surface of the cylinder block, used to fix the front axle bracket, realizing the reduction of the height of the tractor and the backward movement of the front axle.

[0004] To solve the above problems, the technical solution adopted by the utility model is as follows:

[0005] An oil pan for a diesel engine is a hollow shell integrally cast and open on one side. The shell includes an oil storage part at the front end and a front axle installation part at the rear end. The oil storage part and the front axle installation part have a common top flange surface above, used for fixing to the engine cylinder block; the rear end of the front axle installation part has a rear plate used for fixing to the flywheel housing; its characteristic lies in that the lower part of the oil storage part and the front axle installation part is a stepped bottom plate, and the stepped bottom plate is jointly composed of an oil storage chamber bottom plate at a relatively low position, an installation part bottom plate at a relatively high position, and a large-round-corner connection bottom plate that is transitionally connected between the two.

[0006] Furthermore, the oil storage part includes an oil storage chamber bottom plate, an oil storage chamber top plate, and oil storage chamber side plates extending up and down between the two. The oil storage chamber is constructed as an outward-expanding wing-shaped arc surface structure among the three. The outward-expanding wing shape at the front end effectively increases the space of the oil storage chamber, and the shrinking arc surface at the rear end avoids tire steering interference.

[0007] Furthermore, the front axle installation part includes an installation part bottom plate, a top flange surface, and side plates extending up and down between the two.

[0008] Furthermore, symmetric block-shaped lugs are arranged on the left and right sides of the installation part bottom plate, used for limiting the left and right movement and swing of the front axle.

[0009] Further, a semi-circular avoidance arc one which is concave upward is arranged in the middle of the front end of the bottom plate of the installation part for avoiding the front support of the front axle; a semi-circular avoidance arc two which is concave upward is arranged below the rear plate for avoiding the drive shaft of the front axle; front axle fixing screw holes are arranged on both sides below the semi-circular avoidance arc one and at the rear end of the bottom plate of the installation part for fixing the front and rear supports of the front axle.

[0010] Further, a lug and an oil level gauge installation screw hole penetrating through the inner cavity of the oil pan are arranged on the left side of the side plate for installing the oil level gauge.

[0011] Further, an oil level gauge air vent hole penetrating through is arranged between the oil level gauge installation screw hole and the inner cavity of the oil pan for solving the problem of the decrease of the oil level when the oil level gauge is inserted.

[0012] Further, a lug arranged on the right side of the top plate of the oil storage cavity and a breather return oil pipe installation screw hole penetrating through the inner cavity are used for installing the breather return oil pipe.

[0013] Further, an oil drain screw hole of the oil pan is arranged on the left side of the side plate of the oil storage cavity.

[0014] Further, a battery bracket and a hood installation screw hole are arranged at the front end of the side plate of the oil storage cavity for fixing the battery bracket and the hood of the tractor.

[0015] The oil pan of the present utility model has a stepped shape as a whole, deeper at the front and shallower at the rear. The front-end outward-expanded wing-shaped structure can effectively meet the lubricating oil reserve. The arc-shaped structure at the rear end of the oil storage cavity can avoid the steering track of the front tire of the tractor. The rear end of the oil pan is designed with a thinning structure to be closest to the diesel engine cylinder block to the greatest extent, reducing the installation position of the diesel engine. The front axle installation position designed at the rear end effectively reduces the wheelbase of the tractor and greatly reduces the turning radius. It effectively solves the problems that the tractors equipped with conventional "flat" and "equal-depth" oil pans have large turning radii, the vehicle body height interferes with the greenhouse top in narrow spaces such as greenhouses and orchards during operation, resulting in low operation efficiency and inability to cover the entire area. The tractor equipped with the oil pan of the present utility model has unique advantages in reducing the overall height of the whole machine and improving the turning flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figures 1 to 4 : Structural schematic diagram of the present utility model;

[0017] Figure 5 : Schematic diagram of the use state of the present utility model;

[0018] In the figure: 1. Top surface flange, 1-1. Connecting through hole, 1-2. Positioning pin hole; 2. Bottom plate, 2-1. Large rounded corner connecting bottom plate, 2-2. Block-shaped lug, 2-3. Semi-circular relief arc I, 2-4. Front axle fixing screw hole; 3. Side plate, 3-1. Oil level gauge mounting screw hole, 3-2. Oil level gauge vent hole; 4. Oil storage chamber bottom plate; 5. Oil storage chamber top plate, 5-1. Breather return pipe mounting screw hole; 6. Oil storage chamber side plate, 6-1. Oil pan drain screw hole, 6-2. Battery bracket and engine hood mounting screw hole; 7. Rear plate, 7-1. Semi-circular relief arc II, 7-2. Flywheel housing fixing through hole, 7-3. Flywheel housing fixing screw hole. Detailed implementation mode

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Embodiment 1

[0021] A diesel engine oil pan, the oil pan is a one-piece casting structure, the oil pan is a hollow shell with one open side, and the overall structure includes a top surface flange 1, a mounting part bottom plate 2, and side plates 3 extending up and down around the mounting part bottom plate 2 and the top surface flange 1; an oil storage chamber bottom plate 4, an oil storage chamber top plate 5, and oil storage chamber side plates 6 extending up and down around the oil storage chamber bottom plate 4 and the oil storage chamber top plate 5; and a rear plate 7 extending downward at the rear end of the shell. The oil storage chamber structure is an outwardly expanding wing-shaped arc structure; the mounting part bottom plate 2 and the oil storage chamber bottom plate 4 are stepped plates, and the mounting part bottom plate 2 is at the upper right of the oil storage chamber bottom plate 4, and the two plates are transitionally connected by a large rounded corner connecting bottom plate 2-1.

[0022] The top flange surface 1 is used to fix the oil pan to the engine block. There are 22 connecting through-holes 1-1 and 2 positioning pin holes 1-2 provided on the top flange surface 1. Symmetrical block-shaped lugs 2-2 are provided on the left and right sides of the mounting part bottom plate 2 for limiting when the front axle swings left and right during operation. A semi-circular avoidance arc one 2-3 with an upward concave shape is provided at the front position of the mounting part bottom plate 2 for avoiding the front support of the front axle; a semi-circular avoidance arc two 7-1 with an upward concave shape is also provided below the rear plate 7 for avoiding the front axle drive shaft; there are 4 front axle fixing screw holes 2-4 provided below both sides of the semi-circular avoidance arc one 2-3 and at the rear end of the mounting part bottom plate 2 for fixing the front and rear supports of the front axle. The rear plate 7 is provided with 4 flywheel housing fixing through-holes 7-2 and 5 flywheel housing fixing screw holes 7-3 for fixing the oil pan to the flywheel housing. A lug and an oil level gauge mounting screw hole 3-1 penetrating the inner cavity of the oil pan are provided on the left side of the side plate 3 for mounting the oil level gauge. An oil level gauge ventilation hole 3-2 penetrating through is provided between the oil level gauge mounting screw hole 3-1 and the inner cavity of the oil pan to solve the problem of the oil level dropping when the oil level gauge is inserted. A lug and a breather return oil pipe mounting screw hole 5-1 penetrating the inner cavity are provided on the right side of the oil storage cavity top plate 5 for mounting the breather return oil pipe. An oil pan drain screw hole 6-1 that can allow the engine oil in the inner cavity of the oil pan to flow out is provided on the left side of the oil storage cavity side plate 6 for draining the oil pan. 6 battery bracket and engine hood mounting screw holes 6-2 are provided at the front end of the oil storage cavity side plate 6 for fixing the tractor battery bracket and the engine hood.

[0023] In this embodiment, by designing an oil pan with a stepped shape, deeper at the front and shallower at the rear, the front-end outwardly extended wing-shaped structure can effectively meet the lubricating oil reserve; the arc-shaped structure at the rear end of the oil storage cavity can avoid the steering trajectory of the front tires of the tractor; the rear end of the oil pan is designed with a thinner structure, which can approach the diesel engine block to the maximum extent, reducing the installation position of the diesel engine; the front axle mounting position designed at the rear end effectively reduces the wheelbase of the tractor and greatly reduces the turning radius; drilling a hole on the oil level gauge mounting screw hole lug in the inner cavity of the oil pan can solve the problem of the oil level dropping when the oil level gauge is inserted. The tractor equipped with this oil pan has unique advantages in reducing the overall height of the machine and improving the turning flexibility.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this utility model belongs. The terms used in the description of this utility model in this specification are only for the purpose of describing specific embodiments and are not intended to limit this utility model.

[0025] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution content of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A diesel engine oil pan, which is a hollow shell integrally cast and open on one side. The shell includes an oil storage part at the front end and a front axle mounting part at the rear end. A common top flange surface is provided above the oil storage part and the front axle mounting part for fixedly connecting with the engine cylinder block. A rear plate for fixing with the flywheel housing is provided at the rear end of the front axle mounting part. It is characterized in that, Below the oil storage part and the front axle mounting part is a stepped bottom plate, which is jointly composed of an oil storage chamber bottom plate at a relatively low position, a mounting part bottom plate at a relatively high position, and a large-round-corner connecting bottom plate that is transitionally connected between the two.

2. A diesel engine oil pan according to claim 1, characterized in that The oil storage part includes an oil storage chamber bottom plate, an oil storage chamber top plate, and oil storage chamber side plates that extend up and down between the two. The oil storage chamber is constructed as an outwardly expanding wing-shaped arc surface structure between the three of them. The outwardly expanding wing shape at the front end effectively increases the oil storage chamber space, and the shrinking arc surface at the rear end avoids tire steering interference.

3. A diesel engine oil pan according to claim 1, characterized in that The front axle mounting part includes a mounting part bottom plate, a top flange surface, and side plates that extend up and down between the two.

4. A diesel engine oil pan according to claim 1, characterized in that Symmetrical block-shaped lugs are provided on the left and right sides of the mounting part bottom plate for limiting the left and right movement and swing of the front axle.

5. A diesel engine oil pan according to claim 1, characterized in that A semi-circular avoidance arc concave upward is provided in the middle of the front end of the mounting part bottom plate for avoiding the front support of the front axle; a semi-circular avoidance arc concave upward is provided below the rear plate for avoiding the front axle drive shaft; front axle fixing screw holes are provided on both sides below the semi-circular avoidance arc one and at the rear end of the mounting part bottom plate for fixing the front and rear supports of the front axle.

6. A diesel engine oil pan according to claim 3, characterized in that A lug and an oil level gauge mounting screw hole penetrating the inner cavity of the oil pan are provided on the left side of the side plate for installing the oil level gauge.

7. A diesel engine oil pan according to claim 6, characterized in that An oil level gauge ventilation hole penetrating through is provided between the oil level gauge mounting screw hole and the inner cavity of the oil pan.

8. A diesel engine oil pan according to claim 2, characterized in that A lug and a breather return oil pipe mounting screw hole penetrating the inner cavity are provided on the right side of the oil storage chamber top plate for installing the breather return oil pipe.

9. A diesel engine oil pan according to claim 2, characterized in that An oil drain screw hole of the oil pan is provided on the left side of the oil storage chamber side plate.

10. A diesel engine oil pan according to claim 2, characterized in that A battery bracket and a hood mounting screw hole are provided at the front end of the oil storage chamber side plate for fixing the tractor battery bracket and the hood.

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