Engine cylinder sleeve and vehicle

Abstract

The utility model belongs to the technical field of vehicles, and discloses an engine cylinder sleeve and a vehicle, the engine cylinder sleeve comprises a cylinder sleeve body and a reticulate pattern structure, a plurality of oil groove groups are arranged on the inner circumferential wall of the cylinder sleeve body along the axis direction of the cylinder sleeve body, each oil groove group comprises a plurality of spiral oil grooves, and the spiral oil grooves are arranged along the circumferential direction of the cylinder sleeve body. The multiple spiral oil grooves are arranged in parallel at intervals, the spiral oil grooves of every two adjacent oil groove sets are arranged in a staggered mode, the spiral oil grooves are used for storing lubricating oil and forming an oil film on the inner circumferential face of the cylinder sleeve body, and compared with a traditional pit-shaped structure, friction work and oil consumption of the whole machine are reduced; the lubricating condition of the engine cylinder sleeve is effectively improved, the lubricating effect is good, the problems of abnormal cylinder score, abrasion and the like can be solved, the reliability is high, the reticulate pattern structure is arranged on the inner circumferential face, without the spiral oil groove, of the cylinder sleeve body, the reticulate pattern structure can improve the lubricating uniformity of an oil film, and the lubricating condition of the engine cylinder sleeve is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to an engine cylinder liner and a vehicle. Background Art

[0002] The cylinder liner, piston and cylinder head together form a combustion chamber. During the operation of the engine, the friction and wear between the cylinder liner and the piston ring are very serious. Especially when the piston reaches near the top dead center, the cylinder liner will suffer severe wear due to the lack of lubricating oil, and this kind of wear is also the main reason for the failure of the cylinder liner. In the prior art, a pit-shaped structure is arranged on the inner peripheral wall of the cylinder liner, and it is usually processed by laser processing, with high production cost. Moreover, the friction coefficient is low, and problems such as cylinder pulling and abnormal wear are likely to occur during the reciprocating movement of the piston in the cylinder liner, and the reliability is poor.

[0003] Therefore, there is an urgent need for an engine cylinder liner and a vehicle to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an engine cylinder liner and a vehicle, and this engine cylinder liner solves the problems of abnormal cylinder pulling, wear, etc. caused by the poor lubrication effect of the traditional pit-shaped structure of the cylinder liner.

[0005] In order to solve the above problems existing in the prior art, the utility model adopts the following technical solutions:

[0006] An engine cylinder liner, comprising:

[0007] A cylinder liner body, along the axial direction of the cylinder liner body, multiple groups of oil groove groups are arranged on the inner peripheral wall of the cylinder liner body, each group of oil groove groups includes multiple spiral oil grooves, along the circumferential direction of the cylinder liner body, the multiple spiral oil grooves are spaced and parallel, and the spiral oil grooves of adjacent two groups of oil groove groups are staggered;

[0008] A reticulated structure, the reticulated structure is arranged on the inner peripheral surface of the cylinder liner body where the spiral oil grooves are not arranged.

[0009] Preferably, along the circumferential direction of the cylinder liner body, the multiple spiral oil grooves of each group of oil groove groups are evenly distributed.

[0010] Preferably, the end of each spiral oil groove is located between the corresponding adjacent two spiral oil grooves in the adjacent oil groove group.

[0011] Preferably, the reticulated structure includes multiple reticulated textures, along the extending direction of the spiral oil grooves, the multiple reticulated textures are distributed in a matrix, and adjacent two reticulated textures are connected by their respective vertices. Preferably, the shape of the reticulated texture is a rhombus.

[0012] Preferably, the cylinder liner body is further provided with a partition groove, and along the circumferential direction of the cylinder liner body, the partition groove sequentially penetrates through a plurality of the spiral oil grooves.

[0013] Preferably, there are a plurality of the partition grooves, and along the axial direction of the cylinder liner body, the plurality of partition grooves are arranged at intervals, and the partition groove has a wavy structure.

[0014] Preferably, both the oil groove group and the partition groove are arranged on the inner circumferential surface of the cylinder liner body by means of cutting.

[0015] Preferably, both the oil groove group and the partition groove are arranged in the piston movement area of the inner circumferential surface of the cylinder liner body.

[0016] To achieve the above object, the present invention further provides a vehicle, including an engine, the engine includes a cylinder block and the above-mentioned engine cylinder liner, and the engine cylinder liner is arranged inside the cylinder block.

[0017] The beneficial effects of the present invention are as follows:

[0018] The engine cylinder liner provided by the present invention includes a cylinder liner body and a reticulated structure. Along the axial direction of the cylinder liner body, multiple groups of oil groove groups are arranged on the inner peripheral wall of the cylinder liner body. Each group of oil groove groups includes a plurality of spiral oil grooves. Along the circumferential direction of the cylinder liner body, the plurality of spiral oil grooves are arranged at intervals and in parallel, and the spiral oil grooves of adjacent two groups of oil groove groups are arranged staggeredly. The reticulated structure is arranged on the inner circumferential surface of the cylinder liner body where no spiral oil groove is provided. The spiral oil groove is inclined with respect to the axial direction of the cylinder liner body. The cylinder liner body has a cylindrical structure. At this time, the spiral oil groove has a spiral structure. The spiral oil groove is used to store lubricating oil and form an oil film on the inner circumferential surface of the cylinder liner body. The spiral oil grooves of adjacent two groups of oil groove groups are arranged staggeredly. Compared with the traditional pit-shaped structure, the friction work and the overall engine oil consumption are reduced, the lubrication condition of the engine cylinder liner is effectively improved, the lubrication effect is good, so that problems such as abnormal cylinder scuffing and wear can be solved, and the reliability is high. The reticulated structure is arranged in the area on the inner circumferential surface of the cylinder liner body where no spiral oil groove is provided. Along the circumferential direction of the cylinder liner body, the reticulated structure is located between two adjacent spiral oil grooves. The reticulated structure can store lubricating oil, and the lubricating oil of two adjacent spiral oil grooves can be evenly distributed under the action of the reticulated structure, ensuring that the amount of lubricating oil in the plurality of spiral oil grooves of each group of oil groove groups is the same, improving the lubrication uniformity of the oil film, and further improving the lubrication condition of the engine cylinder liner.

[0019] The vehicle provided by the present utility model includes an engine, and the engine includes a cylinder block and an engine cylinder liner, and the engine cylinder liner is arranged inside the cylinder block. Multiple groups of oil groove groups are arranged on the inner circumferential surface of the engine cylinder liner. Each group of oil groove groups includes a plurality of spiral oil grooves. Along the circumferential direction of the cylinder liner body, the plurality of spiral oil grooves are arranged at intervals and in parallel, and the spiral oil grooves of adjacent two groups of oil groove groups are arranged staggeredly. A reticulated structure is arranged on the inner circumferential surface of the cylinder liner body where no spiral oil grooves are provided. The frictional work and the total engine oil consumption are reduced, the lubrication condition of the engine cylinder liner is effectively improved, so that the problems of abnormal cylinder pulling and wear of the engine can be solved, and the reliability is high. Description of the Drawings

[0020] Figure 1 It is a schematic diagram of the internal structure of the engine cylinder liner provided by an embodiment of the present utility model;

[0021] Figure 2 It is a schematic diagram of the reticulated structure provided by an embodiment of the present utility model;

[0022] Figure 3 It is a schematic diagram of the structure of the reticulated texture provided by an embodiment of the present utility model.

[0023] Reference Signs:

[0024] 100, cylinder liner body;

[0025] 200, oil groove group; 201, spiral oil groove;

[0026] 300, reticulated structure; 301, reticulated texture;

[0027] 400, partition groove. Detailed Embodiment

[0028] The present utility model will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that for the sake of description, only parts related to the present utility model are shown in the drawings rather than all the structures.

[0029] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0030] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0031] In the description of this embodiment, the orientation or positional relationship terms such as "above", "below", "left" and "right" are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0032] As Figures 1 - 3 shown, in this embodiment, the engine cylinder liner includes a cylinder liner body 100 and a reticulated structure 300. Among them, along the axial direction of the cylinder liner body 100, multiple oil groove groups 200 are provided on the inner peripheral wall of the cylinder liner body 100. Each oil groove group 200 includes a plurality of spiral oil grooves 201. Along the circumferential direction of the cylinder liner body 100, the plurality of spiral oil grooves 201 are arranged at intervals and in parallel, and the spiral oil grooves 201 of adjacent two oil groove groups 200 are arranged in a staggered manner. The reticulated structure 300 is provided on the inner peripheral surface of the cylinder liner body 100 where no spiral oil grooves 201 are provided. Specifically, the spiral oil grooves 201 are inclined with respect to the axial direction of the cylinder liner body 100. The cylinder liner body 100 has a cylindrical structure. At this time, the spiral oil grooves 201 have a spiral structure. The spiral oil grooves 201 are used to store lubricating oil and form an oil film on the inner peripheral surface of the cylinder liner body 100. And the spiral oil grooves 201 of adjacent two oil groove groups 200 are arranged in a staggered manner. Compared with the traditional pit-like structure, the friction work and the overall engine oil consumption are reduced, the lubrication condition of the engine cylinder liner is effectively improved, the lubrication effect is good, so that problems such as abnormal cylinder scuffing and wear can be solved, and the reliability is high. The reticulated structure 300 is arranged in the area on the inner peripheral surface of the cylinder liner body 100 where no spiral oil grooves 201 are provided. Along the circumferential direction of the cylinder liner body 100, the reticulated structure 300 is located between two adjacent spiral oil grooves 201. The reticulated structure 300 can store lubricating oil, and moreover, the lubricating oil of two adjacent spiral oil grooves 201 can be evenly distributed under the action of the reticulated structure 300, ensuring that the amount of lubricating oil in the plurality of spiral oil grooves 201 of each oil groove group 200 is the same, improving the lubrication uniformity of the oil film, and further improving the lubrication condition of the engine cylinder liner.

[0033] Furthermore, referring to Figure 1 , along the circumferential direction of the cylinder liner body 100, multiple spiral oil grooves 201 of each oil groove group 200 are evenly distributed. Thus, the areas of the reticulated structures 300 arranged between every two adjacent spiral oil grooves 201 are the same. Under the action of the reticulated structures 300, the oil film formed by the lubricating oil is evenly distributed on the inner circumferential surface of the cylinder liner body 100, improving the lubrication uniformity of the oil film and enhancing the lubrication conditions of the engine cylinder liner.

[0034] Furthermore, continuing to refer to Figure 1 , the end of each spiral oil groove 201 is located between two corresponding adjacent spiral oil grooves 201 in the adjacent oil groove group 200. Specifically, the spiral oil grooves 201 of two adjacent oil groove groups 200 are staggered. Compared with the traditional pit-shaped structure, the friction work and the overall engine oil consumption are reduced, effectively improving the lubrication conditions of the engine cylinder liner, with good lubrication effect, thus being able to solve problems such as abnormal cylinder scuffing and wear, and having high reliability.

[0035] Furthermore, referring to Figures 2 - 3 , the reticulated structure 300 includes multiple reticulated textures 301. Along the extension direction of the spiral oil groove 201, the multiple reticulated textures 301 are distributed in a matrix, and two adjacent reticulated textures 301 are connected by their respective vertices. Specifically, the shape of the reticulated texture 301 is rhombic. The angle range of the inner angles of two opposite vertices of the reticulated texture 301 is greater than or equal to 40° and less than or equal to 60°, that is, the inner angle of the vertex is about 50°, with an error range not exceeding ±10°. The angle range of the inner angles of the other two opposite vertices of the reticulated texture 301 is greater than or equal to 120° and less than or equal to 140°, that is, the inner angle of the vertex is about 130°, with an error range not exceeding ±10°.

[0036] Furthermore, continuing to refer to Figure 1 , the cylinder liner body 100 is also provided with a partition groove 400. Along the circumferential direction of the cylinder liner body 100, the partition groove 400 sequentially penetrates through multiple spiral oil grooves 201. Specifically, the partition groove 400 has a wavy structure, and the number of the partition grooves 400 is multiple. Along the axial direction of the cylinder liner body 100, the multiple partition grooves 400 are arranged at intervals, which can slow down the flow velocity of the lubricating oil in the spiral oil groove 201 along the extension direction of the spiral oil groove 201, thereby being able to extend the lubrication performance of the oil film and effectively improving the lubrication conditions of the engine cylinder liner, with good lubrication effect.

[0037] Furthermore, continuing to refer to Figure 1, both the oil groove group 200 and the partition groove 400 are arranged on the inner peripheral surface of the cylinder liner body 100 by means of cutting. Specifically, since the middle area of the cylinder liner is the area where the piston runs at high speed and occupies the frictional work of the piston assembly, the oil groove group 200 and the partition groove 400 are both arranged in the piston movement area of the inner peripheral surface of the cylinder liner body 100, which can reduce the frictional work and effectively improve the lubrication condition of the engine cylinder liner. The oil groove group 200 and the partition groove 400 are grooved on the inner peripheral surface of the cylinder liner body 100 by means of cutting, and compared with the laser processing method, the cost is low. Optionally, the spiral oil groove 201 has an arc-shaped structure, which can slow down the flow rate of the lubricating oil in the spiral oil groove 201, so as to extend the lubrication performance of the oil film.

[0038] This embodiment also provides a vehicle, including an engine, the engine includes a cylinder block and the above-mentioned engine cylinder liner, and the engine cylinder liner is arranged inside the cylinder block. Specifically, multiple groups of oil groove groups 200 are arranged on the inner peripheral surface of the engine cylinder liner, and each group of oil groove groups 200 includes a plurality of spiral oil grooves 201. Along the circumferential direction of the cylinder liner body 100, the plurality of spiral oil grooves 201 are arranged at intervals and in parallel, and the spiral oil grooves 201 of adjacent two groups of oil groove groups 200 are arranged staggeredly. The reticulate structure 300 is arranged on the inner peripheral surface of the cylinder liner body 100 where the spiral oil grooves 201 are not arranged. It reduces the frictional work and the total engine oil consumption, effectively improves the lubrication condition of the engine cylinder liner, so as to solve the problems of abnormal cylinder pulling and wear of the engine, and has high reliability.

[0039] Obviously, the above-mentioned embodiments of the present invention are only examples for clearly explaining the present invention, and are not intended to limit the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. An engine cylinder liner, characterized in that: include: A cylinder liner body (100), wherein along the axial direction of the cylinder liner body (100), the inner circumferential wall of the cylinder liner body (100) is provided with a plurality of oil groove groups (200), each of the oil groove groups (200) comprises a plurality of spiral oil grooves (201), and along the circumferential direction of the cylinder liner body (100), the plurality of spiral oil grooves (201) are arranged at intervals and in parallel, and the spiral oil grooves (201) of two adjacent oil groove groups (200) are arranged in a staggered manner; A mesh structure (300), wherein the mesh structure (300) is arranged on the inner circumferential surface of the cylinder liner body (100) where the spiral oil groove (201) is not arranged.

2. The engine cylinder liner according to claim 1, characterized in that: Along the circumferential direction of the cylinder liner body (100), the plurality of spiral oil grooves (201) of each oil groove group (200) are evenly distributed.

3. The engine cylinder liner according to claim 1, characterized in that: The end of each spiral oil groove (201) is located between corresponding two adjacent spiral oil grooves (201) in the adjacent oil groove groups (200).

4. The engine cylinder liner according to claim 1, characterized in that: The mesh structure (300) comprises a plurality of mesh textures (301), and along the extension direction of the spiral oil groove (201), the plurality of mesh textures (301) are distributed in a matrix, and two adjacent mesh textures (301) are connected via their respective vertices.

5. The engine cylinder liner according to claim 4, characterized in that: The mesh texture (301) is in the shape of a diamond.

6. The engine cylinder liner according to claim 1, characterized in that: The cylinder liner body (100) is also provided with a separation groove (400), and along the circumferential direction of the cylinder liner body (100), the separation groove (400) is sequentially penetrated through the plurality of spiral oil grooves (201).

7. The engine cylinder liner according to claim 6, characterized in that: There are a plurality of the separation grooves (400), and along the axial direction of the cylinder sleeve body (100), the plurality of separation grooves (400) are arranged at intervals, and the separation grooves (400) are in a wave-shaped structure.

8. The engine cylinder liner according to claim 6, characterized in that: The oil groove group (200) and the separation groove (400) are both arranged on the inner circumferential surface of the cylinder liner body (100) by cutting.

9. The engine cylinder liner according to claim 6, characterized in that: The oil groove group (200) and the separation groove (400) are both arranged in the piston movement area of ​​the inner circumferential surface of the cylinder liner body (100).

10. A vehicle comprising an engine, characterized in that The engine comprises a cylinder block and an engine cylinder liner according to any one of claims 1 to 9, wherein the engine cylinder liner is arranged inside the cylinder block.

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