CN216923160U - Wear-resisting piston ring for garden machinery gasoline engine - Google Patents

Abstract

The utility model discloses a wear-resistant piston ring for a garden machinery gasoline engine, which comprises a gasoline engine piston, wherein a top ring is arranged on the side surface of the gasoline engine piston, a second ring is arranged at the bottom of the top ring, a combined oil ring is arranged at the bottom of the second ring, a first outer ring wraps the top of a first compression ring, a second outer ring wraps the bottom and the outer side of a second compression ring, the first outer ring, the second outer ring and the outer ring of the oil ring are all made of wear-resistant materials, and wear-resistant coatings are arranged on the outer sides of the first outer ring and the second outer ring, when the gasoline engine piston works, the first outer ring and the second outer ring which are arranged on the outer sides of the first compression ring and the second compression ring contact with the gasoline engine along with the movement of the gasoline engine piston to generate collision and friction, so that the first compression ring and the second compression ring can be prevented from directly contacting with the gasoline engine, and when the gasoline engine piston moves, the outer ring can also replace the inner ring to contact with the gasoline engine, thereby achieving the technical effect of improving the integral wear resistance of the piston ring.

Description

Wear-resisting piston ring for garden machinery gasoline engine

Technical Field

The utility model relates to the field of piston rings, in particular to a wear-resistant piston ring for a garden machinery gasoline engine.

Background

The piston ring is used for embedding a metal ring in a piston groove and is divided into two types: the compression ring is used for sealing combustible mixed gas in the combustion chamber, and the oil ring is used for scraping redundant existing gas on the cylinder.

The piston ring is widely applied to various power machines, and during operation, the force acting on the piston ring is gas pressure, the self elasticity of the ring, the inertia force of reciprocating motion, the friction force between the ring and the cylinder and the ring groove, and the like.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a wear-resistant piston ring for a garden machinery gasoline engine, which has the technical effect of improving the overall wear resistance of the piston ring.

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a garden machine petrol engine is with wear-resisting piston ring, includes the petrol engine piston, petrol engine piston side-mounting has the apical ring, the second ring is installed to the apical ring bottom, and combination formula oil ring is installed to second ring bottom.

As a preferable technical scheme of the utility model, the top ring comprises a first compression ring arranged in a groove on the side surface of the piston of the gasoline engine, and a first outer ring arranged outside the first compression ring.

As a preferable technical scheme of the utility model, the first compression ring is arranged in a groove arranged on the side surface of the piston of the gasoline engine and is positioned close to the top of the piston of the gasoline engine, the cross section of the first outer ring is L-shaped and wraps the top of the first compression ring, and the outer side of the top of the first outer ring is provided with an arc edge.

As a preferable embodiment of the present invention, the second ring includes a second compression ring installed at a bottom of the first compression ring, and a second outer ring installed outside the second compression ring.

As a preferable technical scheme of the utility model, the cross section of the second outer ring is arranged to be L-shaped, and the second outer ring wraps the bottom and the outer side of the second compression ring.

In a preferred embodiment of the present invention, the combined oil ring includes an oil ring inner ring installed at the bottom of the second compression ring, an oil ring outer ring installed outside the oil ring inner ring, and an oil ring lining spring installed inside the oil ring inner ring.

In a preferred embodiment of the present invention, the side surface of the inner ring of the oil ring is provided with through holes arranged in a row, the side surface of the outer ring of the oil ring is provided with the same through hole structure, the inner side of the inner ring of the oil ring is provided with an arc-shaped groove, and the oil ring lining spring is installed in the groove on the inner side of the inner ring of the oil ring.

Compared with the prior art, the utility model can achieve the following beneficial effects:

1. the utility model is characterized in that a first outer ring arranged on the outer side of a first compression ring, a second outer ring arranged on the outer side of a second compression ring and an oil ring outer ring arranged on the outer side of an oil ring inner ring are arranged, the cross section of the first outer ring is L-shaped and wraps the top of the first compression ring, the first outer ring is made of wear-resistant material, the cross section of the second outer ring is L-shaped and wraps the bottom and the outer side of the second compression ring, the second outer ring is made of wear-resistant material and is provided with a wear-resistant coating, the outer side of the oil ring outer ring is provided with a wear-resistant coating, the oil ring outer ring is made of wear-resistant material, when a gasoline engine piston works, the first outer ring and the second outer ring which are arranged on the outer sides of the first compression ring and the second compression ring contact with the gasoline engine along with the movement of the piston to generate collision and friction, thereby preventing the first compression ring and the second compression ring from generating direct contact with the gasoline engine, when the piston of the gasoline engine moves, the outer ring of the oil ring can also replace the inner ring of the oil ring to be in contact with the gasoline engine, so that the technical effect of improving the integral wear resistance of the piston ring is achieved;

2. according to the utility model, through the first outer ring arranged on the outer side of the first compression ring, the gap is arranged between the first compression ring and the first outer ring, the outer side of the top of the first outer ring is provided with an arc edge, the gap is arranged between the second compression ring and the second outer ring, and the gap is arranged between the inner ring of the oil ring and the outer ring of the oil ring, so that a certain shape deformation is carried out in a space when the outer rings contact with the inner rings when the gasoline engine rubs and collides in the working process of a piston of the gasoline engine, thereby generating a buffering effect and further achieving the technical effect of improving the safety of the piston ring.

Drawings

FIG. 1 is a schematic view of the complete structure of the present invention;

FIG. 2 is a sectional view taken at A in FIG. 1, illustrating the present invention;

FIG. 3 is a partial block diagram of the top ring and second ring of the present invention;

FIG. 4 is a schematic diagram of a modular oil ring portion of the present invention.

Wherein: 1. a gasoline engine piston; 2. a top ring; 3. a second ring; 4. a combined oil ring; 21. a first compression ring; 22. a first outer ring; 31. a second compression ring; 32. a second outer ring; 41. an oil ring inner ring; 42. an oil ring outer ring; 43. the oil ring is lined with a spring.

Detailed Description

The present invention will be further described with reference to specific embodiments for the purpose of facilitating an understanding of technical means, characteristics of creation, objectives and functions realized by the present invention, but the following embodiments are only preferred embodiments of the present invention, and are not intended to be exhaustive. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.

Example (b):

as shown in figures 1-4, the wear-resistant piston ring for the garden machinery gasoline engine comprises a gasoline engine piston 1, wherein a top ring 2 is installed on the side surface of the gasoline engine piston 1, a second ring 3 is installed at the bottom of the top ring 2, and a combined oil ring 4 is installed at the bottom of the second ring 3.

In other embodiments, the top ring 2 comprises a first compression ring 21 installed in a groove on the side surface of the gasoline engine piston 1, and a first outer ring 22 installed outside the first compression ring 21, and a gap is arranged between the first compression ring 21 and the first outer ring 22, and the first compression ring 21 and the first outer ring 22 are movably connected.

In other embodiments, the first compression ring 21 is installed in a groove formed in the side surface of the piston 1 of the gasoline engine and located near the top of the piston 1 of the gasoline engine, the cross section of the first outer ring 22 is L-shaped and wraps the top of the first compression ring 21, the outer side of the top of the first outer ring 22 is provided with an arc edge, and the first outer ring 22 is made of wear-resistant materials.

In other embodiments, the second ring 3 includes a second compression ring 31 installed at the bottom of the first compression ring 21, and a second outer ring 32 installed outside the second compression ring 31, with a gap provided between the second compression ring 31 and the second outer ring 32.

In other embodiments, the second outer ring 32 has an L-shaped cross section and covers the bottom and the outer side of the second compression ring 31, the second outer ring 32 is made of wear-resistant material, and the outer side is provided with a wear-resistant coating.

In other embodiments, the combined oil ring 4 includes an oil ring inner ring 41 installed at the bottom of the second compression ring 31, an oil ring outer ring 42 installed outside the oil ring inner ring 41, and an oil ring lining spring 43 installed inside the oil ring inner ring 41, a gap is provided between the oil ring inner ring 41 and the oil ring outer ring 42, an abrasion-resistant coating is provided outside the oil ring outer ring 42, and the oil ring outer ring 42 is made of an abrasion-resistant material.

In other embodiments, the side surface of the oil ring inner ring 41 is provided with through holes which are arranged in a row, the side surface of the oil ring outer ring 42 is provided with the same through hole structure, the inner side of the oil ring inner ring 41 is provided with an arc-shaped groove, the oil ring lining spring 43 is installed in the groove on the inner side of the oil ring inner ring 41, the inner side of the oil ring lining spring 43 is movably connected with the gasoline engine piston 1, and the outer side of the oil ring lining spring is movably connected with the inner side of the oil ring inner ring 41.

The working principle of the utility model is as follows: when in use, the top ring 2 is arranged on the side surface of the piston 1 of the gasoline engine, the second ring 3 is arranged at the bottom of the top ring 2, the combined oil ring 4 is arranged at the bottom of the second ring 3, a gap is arranged between the first compression ring 21 and the first outer ring 22, the cross section of the first outer ring 22 is L-shaped and wraps the top of the first compression ring 21, the outer side of the top of the first outer ring 22 is arranged to be the edge of a circular arc, the first outer ring 22 is made of wear-resistant materials, a gap is arranged between the second compression ring 31 and the second outer ring 32, the cross section of the second outer ring 32 is L-shaped and wraps the bottom and the outer side of the second compression ring 31, the second outer ring 32 is made of wear-resistant materials and is provided with a wear-resistant coating, a gap is arranged between the oil ring inner ring 41 and the oil ring outer ring 42, a wear-resistant coating is arranged on the outer side of the oil ring outer ring 42, and the oil ring outer ring 42 is made of wear-resistant materials, when the piston 1 of the gasoline engine works, the first outer ring 22 and the second outer ring 32 which are arranged at the outer sides of the first compression ring 21 and the second compression ring 31 contact with the gasoline engine along with the movement of the piston 1 of the gasoline engine to generate collision and friction, so that the first compression ring 21 and the second compression ring 31 are prevented from generating direct contact with the gasoline engine, and when the piston 1 of the gasoline engine moves, the oil ring outer ring 42 also replaces the oil ring inner ring 41 to contact with the gasoline engine, so that the friction loss of the first compression ring 21, the second compression ring 31 and the oil ring inner ring 41 during the work is reduced.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (7)

1. The utility model provides a garden machine wear-resisting piston ring for gasoline engine, includes gasoline engine piston (1), its characterized in that: the side surface of the piston (1) of the gasoline engine is provided with a top ring (2), the bottom of the top ring (2) is provided with a second ring (3), and the bottom of the second ring (3) is provided with a combined oil ring (4).

2. The wear-resistant piston ring for the garden machinery gasoline engine as claimed in claim 1, wherein: the top ring (2) comprises a first compression ring (21) arranged in a groove on the side surface of the gasoline engine piston (1), and a first outer ring (22) arranged on the outer side of the first compression ring (21).

3. The wear-resistant piston ring for the garden machinery gasoline engine as claimed in claim 2, wherein: the first compression ring (21) is installed in a groove formed in the side face of the gasoline engine piston (1), the position of the first compression ring is close to the top of the gasoline engine piston (1), the cross section of the first outer ring (22) is L-shaped, the top of the first compression ring (21) is wrapped, and the outer side of the top of the first outer ring (22) is arranged to be the edge of a circular arc.

4. The wear-resistant piston ring for the garden machinery gasoline engine as claimed in claim 1, wherein: the second ring (3) comprises a second compression ring (31) arranged at the bottom of the first compression ring (21) and a second outer ring (32) arranged outside the second compression ring (31).

5. The wear-resistant piston ring for the garden machinery gasoline engine as claimed in claim 4, wherein: the cross section of the second outer ring (32) is L-shaped and wraps the bottom and the outer side of the second compression ring (31).

6. The wear-resistant piston ring for the garden machinery gasoline engine as claimed in claim 1, wherein: the combined oil ring (4) comprises an oil ring inner ring (41) arranged at the bottom of the second compression ring (31), an oil ring outer ring (42) arranged outside the oil ring inner ring (41), and an oil ring lining spring (43) arranged inside the oil ring inner ring (41).

7. The wear-resistant piston ring for the garden machinery gasoline engine as claimed in claim 6, wherein: the side surface of the oil ring inner ring (41) is provided with through holes which are arranged, the side surface of the oil ring outer ring (42) is provided with the same through hole structure, the inner side of the oil ring inner ring (41) is provided with an arc-shaped groove, and the oil ring lining spring (43) is arranged in the groove on the inner side of the oil ring inner ring (41).

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