CN211314390U

CN211314390U - Engine body cylinder hole structure and engine with same

Info

Publication number: CN211314390U
Application number: CN201921662859.3U
Authority: CN
Inventors: 宋林萍; 宋娇
Original assignee: Weichai Power Co Ltd
Current assignee: Weichai Power Co Ltd
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2020-08-21
Anticipated expiration: 2029-09-29

Abstract

The utility model belongs to the technical field of the engine spare part, concretely relates to engine organism jar hole structure and have its engine. The utility model provides an engine organism jar hole structure includes cylinder jacket and organism, the organism with the cylinder jacket cooperation is connected, wherein, the organism with cylinder jacket combination department is equipped with the bush. Through using the engine body cylinder hole structure among this technical scheme, increased the bush, be located organism and cylinder jacket combination department, prevented the organism because the too big problem of damage of cylinder jacket pressure, promoted the rigidity of organism.

Description

Engine body cylinder hole structure and engine with same

Technical Field

The utility model belongs to the technical field of the engine spare part, concretely relates to engine organism jar hole structure and have its engine.

Background

The existing engine generally adopts a cast aluminum engine body and a dry cylinder sleeve, and the cylinder sleeve and the engine body are compositely cast. The cylinder liner generally adopts the casting cylinder liner, wherein, the outer band portion of cylinder liner is protruding to guarantee to bury the laminating of casting cylinder liner and organism. However, the structure cannot meet the protection of the machine body by high explosion pressure, and the cooling effect is not good.

Disclosure of Invention

The invention aims to at least solve the problem that the cylinder hole structure cannot meet the protection of a machine body by high explosion pressure. The purpose is realized by the following technical scheme:

a first aspect of the present invention provides an engine block cylinder bore structure, including:

a cylinder liner;

the engine body is matched and connected with the cylinder sleeve, and a lining is arranged at the joint of the engine body and the cylinder sleeve.

Through using the engine body cylinder hole structure among this technical scheme, increased the bush, be located organism and cylinder jacket combination department, prevented the organism because the too big problem of damage of cylinder jacket pressure, promoted the rigidity of organism.

In addition, according to the utility model discloses an engine body jar hole structure still can have following additional technical characterstic:

in some embodiments of the present invention, the liner includes a first connecting portion, a second connecting portion, and a buffer portion, the first connecting portion is located at the upper portion of the machine body and the cylinder liner joint, the second connecting portion is located below the first connecting portion, and the buffer portion is located between the first connecting portion and the second connecting portion.

In some embodiments of the present invention, a thickness of the first connecting portion is greater than a thickness of the second connecting portion.

In some embodiments of the present invention, the first connecting portion is provided with a plurality of through holes along the radial direction of the bushing.

In some embodiments of the present invention, the buffering portion is a slope structure, and the thickness of the buffering portion is gradually increased from the second connecting portion to the first connecting portion.

In some embodiments of the present invention, the second connecting portion and the buffer portion are provided with a gap between the cylinder sleeves.

In some embodiments of the present invention, the connection between the bushing and the housing is composite casting.

The utility model also provides an engine, this engine includes the engine body jar hole structure among the above-mentioned embodiment.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like parts are designated by like reference numerals throughout the drawings. In the drawings:

fig. 1 schematically shows a schematic structural view of an engine block cylinder bore structure according to an embodiment of the present invention;

fig. 2 schematically shows a schematic structural cross-sectional view of an engine block cylinder bore structure according to an embodiment of the present invention;

fig. 3 is an enlarged view of a portion B in fig. 2.

10: a cylinder liner;

20: body, 21: bushing, 211: first connection portion, 212: second connection portion, 213: a buffer portion.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless specifically identified as an order of performance. It should also be understood that additional or alternative steps may be used.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" can include both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Fig. 1 schematically shows a schematic structural diagram of an engine block cylinder bore structure according to an embodiment of the present invention. Fig. 2 schematically shows a schematic structural section view of an engine block cylinder bore structure according to an embodiment of the present invention. As shown in fig. 1 and 2, the utility model provides an engine body jar hole structure and have its engine. The utility model provides an engine body cylinder hole structure includes cylinder jacket 10 and organism 20, and organism 20 is connected with the cooperation of cylinder jacket 10, and wherein, organism 20 is equipped with bush 21 with cylinder jacket 10 combination department.

Through using the engine body cylinder hole structure among this technical scheme, increased the bush, be located organism 20 and cylinder liner 10 junction, prevented organism 20 because the too big problem of damage of cylinder liner 10 pressure, promoted organism 20's rigidity.

Further, fig. 3 is an enlarged schematic view of a portion B in fig. 2. As shown in fig. 3, the liner 21 includes a first connection portion 211, a second connection portion 212, and a buffer portion 213, the first connection portion 211 being located at a position where the upper portion of the machine body 20 is combined with the cylinder liner 10, the second connection portion 212 being located below the first connection portion 211, and the buffer portion 213 being located between the first connection portion 211 and the second connection portion 212. The overall structure of the liner 21 adopts three parts, which can increase the contact area with the machine body 20 and buffer the acting force of certain cylinder sleeve 10.

Specifically, in the present embodiment, the thickness of the first connection portion 211 is greater than the thickness of the second connection portion 212. Since the first connection portion 211 directly contacts the cylinder liner 10, the thickness of the first connection portion 211 is greater than that of the second connection portion 212, so that the engine block 20 can bear a certain pressure of the cylinder liner 10, and the rigidity of the engine block 20 is increased.

Further, in the present embodiment, the first connection portion 211 is further provided with a plurality of through holes along the radial direction of the bush 21. The through holes are arranged to facilitate cleaning of the gap between the water distribution chamber and the cylinder hole in the machine body 20.

Specifically, in the present embodiment, the buffer portion 213 has a slope structure, and the thickness gradually increases from the second connection portion 212 to the first connection portion 211. The buffer part 213 is designed to have a taper angle structure, so that the contact area between the bush 21 and the machine body 20 in the vertical direction is ensured, and the buffer capacity is improved.

Further, in the present embodiment, a gap is provided between each of the second connecting portion 212 and the cushion portion 213 and the cylinder liner 10. The gap can make the liquid in the water distribution cavity of the machine body 20 flow through the lining 21, and the cooling effect can be achieved.

Specifically, in this embodiment, the connection mode between the bushing 21 and the machine body 20 is composite casting, and the machine body 20 compositely casts the bushing 21 structure on the original basis, so that the advantages of the bushing 21 structure are increased, the rigidity of the whole machine body 20 is improved, and the service life is prolonged.

Specifically, the bushing 21 in this embodiment is a steel bushing, and is compositely cast with the machine body 20 by using the steel bushing, so that a certain pressure can be borne, the rigidity of the whole machine body 20 is improved in the operation process, and the service life is prolonged.

The utility model also provides an engine, engine organism jar hole structure more than including.

Through using the engine among this technical scheme, the engine organism has increased the bush in the cylinder hole structure, has prevented the organism because the too big problem of damage of cylinder jacket pressure, has promoted the rigidity of organism.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An engine block cylinder bore structure, comprising:

a cylinder liner;

the engine body is connected with the cylinder sleeve in a matching way, and a bush is arranged at the joint of the engine body and the cylinder sleeve;

the bushing comprises a first connecting portion, a second connecting portion and a buffering portion, the first connecting portion is located at a joint of the machine body and the cylinder sleeve, the second connecting portion is located below the first connecting portion, and the buffering portion is located between the first connecting portion and the second connecting portion.

2. The engine block cylinder bore structure of claim 1, wherein a thickness of the first connection portion is greater than a thickness of the second connection portion.

3. The engine block cylinder bore structure according to claim 1, characterized in that the first connecting portion is further provided with a plurality of through holes in a radial direction of the liner.

4. The engine block cylinder bore structure of claim 1, wherein the buffer portion is a slope structure, and the thickness gradually increases from the second connecting portion toward the first connecting portion.

5. The engine block cylinder bore structure according to claim 1, characterized in that a clearance is provided between each of the second connecting portion and the buffer portion and the cylinder liner.

6. The engine block cylinder bore structure of claim 1, wherein the connection between the liner and the block is by composite casting.

7. An engine characterized by having an engine block cylinder bore structure according to any one of claims 1 to 6.