Diesel engine

Abstract

The utility model discloses a diesel engine which comprises an engine body and further comprises engine legs, the engine legs extend along the outer wall of the engine body, the engine legs and the engine body are of an integrated structure, each engine leg comprises an engine leg wall, the engine leg walls and the outer wall of the engine body jointly define a cavity, the overall weight is reduced through the cavity structure, and convenience is provided for assembly of the engine body. In addition, the slave machine legs extend along the outer wall of the machine body, and all the machine legs are arranged into a whole, so that casting is facilitated, and the structural strength is improved. Therefore, the diesel engine disclosed by the utility model can be conveniently connected with the engine base, and the integral structure is arranged, so that the casting process is simplified, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of diesel engines, in particular to a diesel engine. Background Art

[0002] The engine foot is an important part that connects the diesel engine to the engine base, and has a great influence on the vibration of the diesel engine. In the prior art, the engine foot of the diesel engine is mostly independently set, that is, the engine foot and the diesel engine body are set separately. Usually, the engine foot is bolted to the engine body, and some engine feet are cast together with the engine body. However, no matter which connection method is adopted, the existing engine foot and the engine body are mostly solid structures after being connected together, which does not contribute to reducing the overall weight. Moreover, the engine foot and the engine body connected together later are easy to cause the diesel engine and the output device to be misaligned, and the functional parts on the diesel engine fail, etc. when the diesel engine vibrates too much. Utility Model Content

[0003] In view of the above-mentioned deficiencies, the technical problem to be solved by the present invention is to provide a diesel engine with an integrated structure of a machine foot and a machine body and a cavity between the machine foot and the machine body, thereby reducing the overall weight of the diesel engine and facilitating the assembly of the machine body.

[0004] In order to solve the above technical problems, the technical solution of the utility model is:

[0005] A diesel engine comprises an engine body and an engine foot, wherein the engine foot is extended along the outer wall of the engine body and is integrally structured with the engine body, and the engine foot comprises an engine foot wall, and the engine foot wall and the outer wall of the engine body together form a cavity.

[0006] Preferably, the wall thickness of the machine foot wall gradually increases from top to bottom.

[0007] Preferably, the outer wall of the machine foot wall is an arc-shaped wall.

[0008] Preferably, the inner wall of the machine foot wall is an arc-shaped wall.

[0009] Preferably, the machine foot and the machine body are integrally formed by casting.

[0010] Preferably, the machine body comprises a plurality of main bearing walls, and a bolt mounting bracket is provided at a position where each main bearing wall is flush with the machine foot.

[0011] Preferably, the connection between the bolt mounting bracket and the machine foot wall is in the shape of a large arc.

[0012] Preferably, the bolt mounting bracket is provided with a bolt hole, and the bolt hole is a plain hole, a hinged bolt hole or a top screw hole.

[0013] Preferably, a positioning platform is provided on the outer side of the machine foot.

[0014] Preferably, the inner wall of the bolt mounting bracket is connected to the main bearing wall via arc-shaped reinforcing ribs.

[0015] After adopting the above technical solution, the beneficial effects of the utility model are:

[0016] Since the diesel engine of the utility model includes a body and a machine foot, the machine foot is extended along the outer wall of the body, and the machine foot and the body are arranged in an integrated structure, the machine foot includes a machine foot wall, and the machine foot wall and the outer wall of the body together form a cavity, and this cavity structure reduces the overall weight and provides convenience for the assembly and assembly of the body; and it can be seen from the fact that the machine foot is extended along the outer wall of the body that all the machine feet in the utility model are arranged in one body, which facilitates casting and improves structural strength. It can be seen that the diesel engine of the utility model can be conveniently connected to the engine base, and the integrated structure simplifies the casting process and reduces production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the diesel engine body in the utility model;

[0018] Figure 2 It is a cross-sectional view of a diesel engine body in the utility model;

[0019] Figure 3 It is a partial enlarged schematic diagram of point A in the utility model;

[0020] Figure 4 It is a structural schematic diagram of the DD direction in the utility model;

[0021] In the figure: 1-machine body, 2-machine foot, 20-machine foot wall, 3-bolt mounting bracket, 30-bolt hole, 4-connection, 5-cavity, 6-positioning platform, 7-main bearing wall. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside", and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0024] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0025] like Figures 1 to 4 As shown together, a diesel engine includes a body 1 and a machine foot 2. The machine foot 2 is extended along the outer wall of the body 1. Specifically, the machine foot 2 passes through the body 1, and the machine foot 2 and the body 1 are integrally formed. In this embodiment, the machine foot 2 and the body 1 are integrally formed by casting, and the casting processability is good.

[0026] The machine foot 2 includes a machine foot wall 20, and the machine foot wall 20 and the outer wall of the machine body 1 together form a cavity 5. The cavity 5 structure reduces the overall weight, making the operation more convenient when the machine body 1 is connected to the machine base. The integrated structure of the machine foot 2 and the machine body 1 simplifies the production process, reduces the production cost, and ensures the structural strength, so that the machine body 1 and the machine base are reliably connected together.

[0027] like Figure 2 and Figure 3 As shown, the wall thickness of the machine foot wall 20 in the utility model gradually increases from top to bottom, that is, the wall thickness gradually changes. This structural setting conforms to the force distribution of the machine foot 2, thereby ensuring the service life, and also conforms to the casting process, further simplifies the process, and reduces the processing cost.

[0028] like Figure 3 As shown, in the utility model, the outer wall of the machine foot wall 20 is an arc-shaped wall, and the inner wall of the machine foot wall 20 is an arc-shaped wall, that is, the machine foot wall 20 is a large arc transition. This structural setting can avoid stress concentration, so that the machine body 1 and the machine base are reliably connected together, and the reliability of the whole machine is improved.

[0029] like Figure 1 As shown, the engine body 1 includes a plurality of main bearing walls, and a bolt mounting bracket 3 is provided at the position where each main bearing wall is flush with the engine foot 2. Even if the height difference between the engine foot wall 20 and the bolt mounting bracket 3 is small, in the direction of the diesel engine crankshaft, the force on the engine foot 2 is evenly distributed to various parts of the engine foot 2, thereby avoiding stress concentration and preventing the connection between the engine body 1 and the engine base from loosening.

[0030] like Figure 2 and Figure 4The connection 4 between the bolt mounting bracket 3 and the machine foot wall 20 is in the shape of a large arc, and the inner wall of the bolt mounting bracket 3 is connected to the corresponding main bearing wall 7 through an arc-shaped reinforcing rib, that is, a thin-walled reinforcing rib structure is adopted, which saves materials and avoids shrinkage.

[0031] like Figure 1 As shown, the bolt mounting bracket 3 is provided with a bolt hole 30, and the bolt hole 30 is a plain hole, a hinged bolt hole 30 or a screw hole. The diesel engine bolt mounting bracket 3 is provided at the position where the engine foot 2 is flush with each gear main bearing wall, and can be used to install different bolts. Taking the 6-cylinder engine as an example, there are 7 gear main bearing walls, and the control side and exhaust side of the engine body 1 are provided with bolt brackets:

[0032] The bolt holes 30 on the bolt mounting brackets 3 corresponding to the 1st, 4th and 7th gears are plain holes, and ordinary bolts and nuts are used when the machine foot 2 is mounted on the base;

[0033] The bolt holes 30 on the bolt mounting brackets 3 corresponding to the 2nd and 5th gears are hinged bolt holes, which are hinged together with the base during diesel engine assembly and then positioned and tightened using hinged hole bolts;

[0034] The bolt holes 30 on the bolt mounting brackets 3 corresponding to the 3rd and 6th gears are top screw holes. When the diesel engine output shaft is aligned with other equipment, this hole is needed to lift the diesel engine up and insert the diesel engine adjustment gasket under the engine foot 2.

[0035] like Figure 1 As shown, in the utility model, a positioning platform 6 is arranged on the outer side of the engine foot 2. During the assembly process of the diesel engine, the bolts for adjusting the position are pushed to this positioning platform 6 to fine-tune the position of the diesel engine. When the diesel engine needs to be equipped with an elastic support, this positioning platform 6 is used to position the elastic support.

[0036] In summary, compared with the prior art, the utility model has the following advantages:

[0037] The machine foot wall 20 of the cavity 5 uses a large arc transition from top to bottom, so that the force is evenly concentrated in the up and down directions to avoid stress concentration;

[0038] The thickness of the machine foot wall 20 changes gradually, which is in line with the force distribution of the machine foot 2 and the casting process;

[0039] The transition between the bolt mounting bracket 3 and the main bearing wall is a thin-walled reinforcing rib structure, which saves materials and avoids shrinkage;

[0040] The height difference between the machine foot wall 20 and the bolt mounting bracket 3 is small, and the large arc transition ensures that the force on the machine foot 2 is evenly distributed to various parts of the machine foot 2 in the direction of the diesel engine crankshaft.

[0041] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications made within the spirit and principles of the present invention, improvements to the same diesel engine, etc., should be included in the protection scope of the present invention.

Claims

1. A diesel engine, comprising an engine body, characterized in that: It also includes a machine foot, which is extended along the outer wall of the machine body, and the machine foot and the machine body are integrally structured, and the machine foot includes a machine foot wall, and the machine foot wall and the outer wall of the machine body together form a cavity.

2. The diesel engine according to claim 1, characterized in that: The wall thickness of the machine foot wall gradually increases from top to bottom.

3. The diesel engine according to claim 1, characterized in that: The outer wall of the machine foot wall is an arc-shaped wall.

4. The diesel engine according to claim 1, characterized in that: The inner wall of the machine foot wall is an arc-shaped wall.

5. The diesel engine according to claim 1, characterized in that: The machine foot and the machine body are integrally formed by casting.

6. The diesel engine according to any one of claims 1 to 5, characterized in that: The machine body comprises a plurality of main bearing walls, and a bolt mounting bracket is arranged at a position where each main bearing wall is flush with the machine foot.

7. The diesel engine according to claim 6, characterized in that: The connection between the bolt mounting bracket and the machine foot wall is in a large arc shape.

8. The diesel engine according to claim 6, characterized in that: The bolt installation bracket is provided with bolt holes, and the bolt holes are smooth holes, hinged bolt holes or top screw holes.

9. The diesel engine according to claim 1, characterized in that: A positioning platform is arranged on the outer side of the machine foot.

10. The diesel engine according to claim 6, characterized in that: The inner wall of the bolt mounting bracket is connected to the main bearing wall through arc-shaped reinforcing ribs.

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