CN210003399U

CN210003399U - Wet cylinder sleeve and engine

Info

Publication number: CN210003399U
Application number: CN201920394298.7U
Authority: CN
Inventors: 王伟; 滕帅; 曹文龙
Original assignee: Weichai Power Co Ltd
Current assignee: Weichai Power Co Ltd
Priority date: 2019-03-25
Filing date: 2019-03-25
Publication date: 2020-01-31
Anticipated expiration: 2029-03-25

Abstract

The utility model belongs to the technical field of the engine, concretely relates to wet cylinder cover and engine, wet cylinder cover assemble in the cylinder cap mounting hole of engine organism, wet cylinder cover assemble in part in the cylinder mounting hole is connecting portion, the utility model provides a connecting portion of wet cylinder cover are equipped with the recess that is used for holding the sealing washer along the circumferential direction, the recess is followed the lower part degree of depth of the cross-section of the direction intercepting of impressing of wet cylinder cover is greater than the upper portion degree of depth, because the recess lower part degree of depth is big, when the cylinder jacket was from top to bottom assembled, easily the assembly has avoided gnawing the emergence of gluing, has improved the assembly reliability.

Description

Wet cylinder sleeve and engine

Technical Field

The utility model belongs to the technical field of the engine, concretely relates to kinds of wet cylinder cover and engine.

Background

This section provides background information related to the present disclosure only and is not necessarily prior art.

The cylinder sleeve is cylindrical parts and is arranged in a cylinder mounting hole of an engine body, the cylinder sleeve is divided into a wet cylinder sleeve and a dry cylinder sleeve, the cylinder sleeve is arranged in the cylinder mounting hole on the engine body, a groove with a rectangular cross section is arranged on the cylinder sleeve ring between the cylinder sleeve and the cylinder mounting hole, a sealing ring is arranged in the groove, and sealing is realized through extrusion deformation of the sealing ring.

SUMMERY OF THE UTILITY MODEL

The purpose of the present invention is to solve of the above problems of the prior art at least, which is realized by the following technical solution:

the utility model discloses an aspect of provides kinds of wet cylinder jacket, assembles in the cylinder jacket mounting hole of engine organism, wet cylinder jacket assemble in part in the cylinder mounting hole is connecting portion, connecting portion are equipped with the recess that is used for holding the sealing washer along the circumference direction, the recess is followed the lower part degree of depth of the cross-section of the direction intercepting of impressing of wet cylinder jacket is greater than the upper portion degree of depth.

The utility model provides a wet cylinder jacket sets up the structure that is greater than the upper portion degree of depth for the lower part degree of depth at the recess of its connecting portion, because the recess lower part is big, and when the cylinder jacket from top to bottom assembled, the initial compression volume of sealing washer and initial compression ratio design lower limit partially, easily assemble, avoid gnawing the emergence of gluing. Because the depth of the lower part of the groove is greater than the depth of the upper part of the groove, the compression amount and the compression ratio of the sealing ring are gradually increased along with the pressing-in of the cylinder sleeve, so that the sealing ring is prevented from being distorted in the assembling process of the wet cylinder sleeve, and the sealing and assembling reliability of the sealing structure of the wet cylinder sleeve is improved.

, the groove is arranged on the upper part of the connecting part.

, the grooves are trapezoidal in shape.

, at least grooves are arranged at intervals in the pressing direction of the wet cylinder sleeve.

The utility model discloses a second aspect has still provided kinds of engines, and the engine includes engine body and wet cylinder jacket, wet cylinder jacket assemble in the cylinder mounting hole of engine body, its characterized in that, wet cylinder jacket is the aforesaid arbitrary wet cylinder jacket.

The utility model provides an engine has above-mentioned beneficial technological effect equally.

, the engine further includes a seal ring disposed in the groove, the seal ring compressed between the engine block and the wet cylinder liner.

, the sealing ring is an elastic member.

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 reference numerals are used to refer to like parts throughout the drawings. In the drawings:

fig. 1 is a schematic structural view of a cylinder liner according to an embodiment of the present invention;

FIG. 2 is an enlarged view of part A of FIG. 1;

fig. 3 is a schematic diagram of the position of the sealing ring during assembly of the cylinder sleeve according to the embodiment of the present invention;

fig. 4 is the embodiment of the present invention provides a schematic position diagram of a sealing ring after assembling a cylinder liner.

The reference symbols in the drawings denote the following:

10: wet cylinder liner, 11: connecting part, 12: groove, 20: seal ring, 30: cylinder sleeve mounting hole

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.

The terms "comprising," "including," "containing," 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 or more other features, steps, operations, elements, components, and/or combinations thereof.

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 may be used solely to distinguish elements, components, regions, layers or sections from others regions, layers or sections unless the context clearly dictates otherwise, terms such as "first ," "second," and other numerical terms are not used herein to imply a sequence or order.

For ease of description, elements or features shown in the figures may be described herein with respect to another elements or features using spatially relative terms such as "inner," "outer," "lower," "below," "over," "above," and the like.

An element that is "below" or "beneath" another element or feature will then be oriented "above" or "over" the other element or feature. 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.

As shown in fig. 1, 2, 3, 4, the utility model provides an kinds of wet cylinder liner 10 installs in cylinder liner mounting hole 30 on the engine organism, and wet cylinder liner 10 assemble in part in the cylinder mounting hole 30 is connecting portion 11, and connecting portion 11 is equipped with the recess 12 that is used for holding sealing washer 12 along the circumferential direction, and the lower part degree of depth of the cross-section of recess along the direction of impressing intercepting of wet cylinder liner is greater than the upper portion degree of depth.

Because the depth of the lower part of the groove 12 is large, when the wet cylinder sleeve 10 is assembled from top to bottom, the initial compression amount and the initial compression ratio of the sealing ring 20 are biased to the design lower limit, the assembly is easy, and the phenomenon of glue gnawing is avoided. The groove 12 has a structure with a large lower depth and a large upper depth, and the compression amount and the compression ratio of the seal ring 20 are gradually increased along with the press-in of the wet cylinder liner 10, so that the seal ring 20 is prevented from being distorted in the assembly process of the wet cylinder liner 10, and the sealing and assembling reliability of the wet cylinder liner 10 is improved.

In the above embodiment, the cross section of the groove 12 may be trapezoidal, so that the compression characteristic of the sealing ring can be better utilized, the compression amount and the compression rate of the sealing ring are gradually increased in the assembling process, the sealing ring is prevented from being subjected to gum biting and twisting, and a better sealing effect is achieved.

In the above embodiment, the connecting portion 11 may be provided with at least grooves 12 at intervals along the pressing direction of the wet cylinder liner 20.

In the above embodiment, the groove 12 is disposed at the upper portion of the connection portion 11, so that the stroke of the contact between the seal ring and the wall surface of the cylinder liner mounting hole is short, and thus the wet cylinder liner 10 is not easy to be chewed during assembly, and the seal ring 20 is not easy to be twisted.

The embodiment of the utility model provides a kinds of engines have still been provided, and it includes engine body and above-mentioned wet cylinder sleeve 10, and wet cylinder sleeve 10 assembles in the cylinder mounting hole of engine body.

The engine block further comprises a sealing ring 20 arranged in the groove 12, the sealing ring 20 being compressed between the engine block and the wet cylinder liner 10. The seal ring 20 is an elastic member.

The utility model provides an engine has above-mentioned beneficial technological effect equally, no longer gives unnecessary details here.

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 should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

wet cylinder liner, which is assembled in a cylinder mounting hole of an engine body, wherein the part of the wet cylinder liner assembled in the cylinder mounting hole is a connecting part, the connecting part is provided with a groove for accommodating a sealing ring along the circumferential direction, and the depth of the lower part of the cross section of the groove taken along the pressing-in direction of the wet cylinder liner is greater than the depth of the upper part.
2. The wet cylinder liner according to claim 1, characterized in that the groove is provided at an upper portion of the connection portion.
3. The wet cylinder liner according to claim 1, characterized in that the grooves are trapezoidal.
4. The wet cylinder liner according to claim 1, characterized in that at least of said grooves are provided at intervals in a press-in direction of the wet cylinder liner.
An engine of kinds, comprising an engine block and a wet cylinder liner fitted in a cylinder mounting hole of the engine block, characterized in that the wet cylinder liner is the wet cylinder liner according to any of claims 1-4.
6. The engine of claim 5, further comprising a seal ring disposed in the groove, the seal ring compressed between the engine block and the wet cylinder liner.
7. The engine of claim 6, wherein the seal ring is an elastomeric member.