CN221525525U - Piston ring with high wear resistance - Google Patents

Abstract

The utility model discloses a piston ring with high wear resistance, which relates to the technical field of piston rings, and the technical scheme is as follows: including the piston ring body to and piston head and piston cylinder, and piston ring groove has been seted up on the piston head surface, the piston ring body includes first ring body, and the draw-in groove the same with first ring body internal circumference has been seted up to first ring body medial surface, first ring body lateral surface upper and lower extreme symmetry is provided with the trapezoidal ring of outer chamfer, and the effect is, through setting up the piston ring body to the first ring body and the second ring body of block, is convenient for change singly of first ring body and second ring body, improves the practicality of piston ring body, through the trapezoidal ring that sets up in the first ring body outside and the wear-resisting lug that sets up in the second ring body inboard, has reduced the area of contact between piston ring body and piston cylinder lateral wall and the piston ring groove, thereby has reduced the friction of piston ring body, has improved wear resistance, has reduced maintenance and change frequency.

Description

Piston ring with high wear resistance

Technical Field

The utility model relates to the technical field of piston rings, in particular to a piston ring with high wear resistance.

Background

The piston ring is a metal ring for embedding into the groove of the piston, and is divided into two types: a compression ring and an oil ring, the compression ring being operable to seal a combustible mixture within the combustion chamber; the oil ring is used to scrape the excess oil from the cylinder, the piston ring is a metal elastic ring with large outward expansion deformation, which is assembled into the corresponding ring groove in the section, and the reciprocating and rotating piston ring forms a seal between the outer circumferential surface of the ring and one side of the cylinder and the ring and ring groove by means of the pressure difference of gas or liquid.

The existing piston ring is integrally arranged, abrasion is usually generated on the upper surface and the lower surface of the piston ring in the reciprocating motion of a piston, the air tightness of the piston ring is affected, the overall service life of the piston ring is also affected, and due to the fact that the abrasion degree of the outer side and the inner side of the piston ring is different, when one side of the piston ring is abraded seriously, the piston ring needs to be replaced integrally, the piston ring is low in practicality, and the use requirements of people cannot be met well.

Therefore, the application provides a piston ring with high wear resistance to solve the technical problems.

Disclosure of utility model

Aiming at the defects existing in the prior art, the utility model aims to provide a piston ring with high wear resistance.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a piston ring with high wear resistance, includes the piston ring body to and piston head and piston cylinder, and the piston head surface has seted up the piston ring groove, the piston ring body includes first ring body, and first ring body medial surface has seted up the draw-in groove the same with first ring body internal circumference, first ring body lateral surface upper and lower extreme symmetry is provided with the trapezoidal ring of outer chamfer, is hollow state between two trapezoidal rings, the piston ring body still includes the second ring body, second ring body lateral surface is provided with the fixture block the same with second ring body external circumference, the piston ring body is formed by first ring body and second ring body combination, first ring body medial surface evenly is provided with a plurality of wear-resisting lugs, and is, through setting up the piston ring body to but block first ring body and second ring body, the single change of being convenient for first ring body and second ring body improves the practicality of piston ring body, through the trapezoidal ring that sets up in the first ring body outside, has reduced the area of contact between first ring body and the piston cylinder lateral wall to reduce friction and wearing and tearing, improve wear resistance, through the wear resistance that sets up in the second inboard lug, has reduced wear resistance and the second ring groove further has improved wear resistance.

Preferably, the surface of the wear-resistant lug is coated with a wear-resistant coating, and the hardness and the wear resistance of the piston ring body are increased through the coated wear-resistant coating, so that friction and wear with the cylinder wall are reduced, the service life of the piston ring is greatly prolonged, the frequency of maintenance and replacement is reduced, and the reliability and the economy of the engine are improved.

Preferably, the lateral surfaces of the two trapezoid rings are respectively provided with an elastic pad, and the elastic pads are arranged to facilitate improvement of the sealing performance of the piston ring body, and meanwhile, the elasticity of the elastic pads is utilized to reduce friction, reduce abrasion and improve wear resistance.

Preferably, the surface of the elastic pad is coated with a lubricating coating, so that good lubrication between the piston ring body and the side wall of the piston cylinder is ensured, friction and abrasion are reduced, and the abrasion resistance is further improved.

Preferably, the cross section of fixture block and draw-in groove is T font, through setting up fixture block and draw-in groove to T font to increased the area of contact of fixture block and draw-in groove, thereby improved the steadiness of first ring body and second ring body block.

Preferably, a sealing gasket is arranged on the surface, in clamping contact with the first ring body, of the second ring body, and tightness of the first ring body and tightness of the second ring body during clamping are guaranteed through the arranged sealing gasket, so that tightness of the piston ring body is guaranteed.

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

1. according to the piston ring, the piston ring body is arranged to be the first ring body and the second ring body which can be clamped, single replacement of the first ring body and the second ring body is facilitated, soft materials are used on the outer side of the first ring body, abrasion-resistant materials are used on the inner side of the second ring body, sealing performance is improved, friction is reduced, and practicability of the piston ring body is greatly improved.

2. According to the utility model, the trapezoid ring arranged on the outer side of the first ring body and the wear-resistant protruding block arranged on the inner side of the second ring body, so that the contact area between the piston ring body and the side wall of the piston cylinder and between the piston ring groove is reduced, the friction and the wear of the piston ring body are reduced, the frequency of maintenance and replacement is reduced, and the reliability and the economy of the engine are improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of a first ring body according to the present utility model;

FIG. 3 is a schematic view of a second ring body according to the present utility model;

Fig. 4 is a schematic cross-sectional view of the present utility model.

1. A piston ring body; 101. a first ring body; 1011. a clamping groove; 102. a second ring body; 1021. a clamping block; 1022. a sealing gasket; 2. wear-resistant protruding blocks; 21. a wear-resistant coating; 3. a trapezoidal ring; 4. an elastic pad; 5. a lubricating coating; 6. a piston head; 61. a piston ring groove; 7. a piston cylinder.

Detailed Description

As shown in fig. 1-4, the utility model provides a piston ring with high wear resistance, comprising a piston ring body 1, a piston head 6 and a piston cylinder 7, wherein the surface of the piston head 6 is provided with a piston ring groove 61, the piston ring body 1 comprises a first ring body 101, the inner side surface of the first ring body 101 is provided with a clamping groove 1011 with the same circumference as the inner circumference of the first ring body 101, the upper end and the lower end of the outer side surface of the first ring body 101 are symmetrically provided with trapezoid rings 3 with outer chamfers, a hollow state is formed between the two trapezoid rings 3, the piston ring body 1 also comprises a second ring body 102, the outer side surface of the second ring body 102 is provided with a clamping block 1021 with the same circumference as the outer circumference of the second ring body 102, the piston ring body 1 is formed by combining the first ring body 101 and the second ring body 102, and the inner side surface of the first ring body 101 is uniformly provided with a plurality of wear-resistant lugs 2, firstly, the second ring body 102 is inserted into the clamping groove 1011 of the first ring body 101 through a clamping block 1021, the second ring body 102 is gradually slid, so that the first ring body 101 and the second ring body 102 are completely clamped, then the second ring body 102 and the first ring body are installed in the piston ring groove 61 of the piston head 6, the first ring body 101 and the second ring body 102 can be conveniently and singly replaced by arranging the piston ring body 1 to be clamped, the practicability of the piston ring body 1 is improved, the contact area between the ring of the first ring body 101 and the side wall of the piston cylinder 7 is reduced through the trapezoid ring 3 arranged on the outer side of the first ring body 101, friction and abrasion are reduced, the abrasion resistance is improved, meanwhile, the contact area between the second ring body 102 and the piston ring groove 61 is reduced through the abrasion resistance protruding block 2 arranged on the inner side of the second ring body 102, and the abrasion resistance of the piston ring body 1 is further improved.

The surface of the wear-resistant lug 2 is coated with the wear-resistant coating 21, and the hardness and the wear resistance of the piston ring body 1 are increased through the coated wear-resistant coating 21, so that the friction and the wear with the cylinder wall are reduced, the service life of the piston ring is greatly prolonged, the frequency of maintenance and replacement is reduced, and the reliability and the economy of an engine are improved.

The lateral surfaces of the two trapezoid rings 3 are provided with the elastic pads 4, the sealing performance of the piston ring body 1 is improved through the elastic pads 4, meanwhile, friction with the side wall of the piston cylinder 7 is reduced by utilizing the elasticity of the elastic pads 4, abrasion is reduced, and the wear resistance is improved.

The surface of the elastic pad 4 is coated with the lubricating coating 5, and good lubrication between the piston ring body 1 and the side wall of the piston cylinder 7 is ensured, friction and abrasion are reduced, and the abrasion resistance is further improved by coating the lubricating coating 5 on the surface of the elastic pad 4.

The sections of the clamping block 1021 and the clamping groove 1011 are T-shaped, and the clamping block 1021 and the clamping groove 1011 are T-shaped, so that the contact area of the clamping block 1021 and the clamping groove 1011 is increased, and the clamping stability of the first ring body 101 and the second ring body 102 is improved.

The surface of the second ring body 102, which is in clamping contact with the first ring body 101, is provided with a sealing gasket 1022, and the sealing performance of the first ring body 101 and the second ring body 102 during clamping is ensured through the sealing gasket 1022, so that the air tightness of the piston ring body 1 is ensured.

Working principle: when the piston ring is used, the second ring body 102 is inserted into the clamping groove 1011 of the first ring body 101 through the clamping block 1021, the second ring body 102 is gradually slid, the first ring body 101 and the second ring body 102 are completely clamped, then the first ring body 101 and the second ring body 102 are installed in the piston ring groove 61 of the piston head 6, the installation of the piston ring body 1 is completed, the sealing performance of the piston ring body 1 during clamping of the first ring body 101 and the second ring body 102 is guaranteed through the arranged sealing gasket 1022, the air tightness of the piston ring body 1 is guaranteed, the first ring body 101 and the second ring body 102 can be clamped through the arrangement of the piston ring body 1, the single replacement of the first ring body 101 and the second ring body 102 is facilitated, the practicability of the piston ring body 1 is improved, meanwhile, the contact area between the piston ring body 1 and the side wall of the piston cylinder 7 and the piston ring groove 61 is reduced through the arranged trapezoid ring 3 arranged outside the second ring body 102, the friction and the piston ring groove 61 are reduced, the sealing performance of the piston ring body 1 is improved through the arranged elastic gasket 4, the use of the elastic gasket 4 is reduced, the wear resistance of the side wall of the piston ring body 7 is reduced, the wear resistance of the piston ring body is further improved, the wear resistance of the piston ring body 1 is improved, the wear resistance is further improved, the wear resistance of the engine is further is improved, and the wear resistance is further improved, and the wear resistance of the engine is further is improved, and the wear resistance is improved.

The above description is only of the preferred embodiments of the present utility model, and is not intended to limit the present utility model in any way; those skilled in the art will readily appreciate that the present utility model may be implemented as shown in the drawings and described above; however, those skilled in the art will appreciate that many modifications, adaptations, and variations of the present utility model are possible in light of the above teachings, without departing from the scope of the utility model; meanwhile, any equivalent changes, modifications and evolution of the above embodiments according to the essential technology of the present utility model still fall within the scope of the present utility model.

Claims (6)

1. The utility model provides a piston ring with high abrasion ability, includes piston ring body (1), and piston head (6) and piston cylinder (7), and piston ring groove (61) have been seted up on piston head (6) surface, its characterized in that:

The piston ring body (1) comprises a first ring body (101), clamping grooves (1011) with the same inner circumference as the first ring body (101) are formed in the inner side surface of the first ring body (101), trapezoid rings (3) with outer chamfers are symmetrically arranged at the upper end and the lower end of the outer side surface of the first ring body (101), a hollow state is formed between the two trapezoid rings (3), the piston ring body (1) further comprises a second ring body (102), clamping blocks (1021) with the same outer circumference as the second ring body (102) are arranged on the outer side surface of the second ring body (102), the piston ring body (1) is formed by combining the first ring body (101) and the second ring body (102), and a plurality of wear-resisting protruding blocks (2) are uniformly arranged on the inner side surface of the first ring body (101).

2. A piston ring having high wear resistance as claimed in claim 1, wherein: the surface of the wear-resistant lug (2) is coated with a wear-resistant coating (21).

3. A piston ring having high wear resistance as claimed in claim 2, wherein: elastic pads (4) are arranged on the outer side surfaces of the two trapezoid rings (3).

4. A piston ring having high wear resistance as claimed in claim 3, wherein: the surface of the elastic pad (4) is coated with a lubricating coating (5).

5. A piston ring having high wear resistance as set forth in claim 4 wherein: the sections of the clamping blocks (1021) and the clamping grooves (1011) are T-shaped.

6. A piston ring with high wear resistance according to claim 5, wherein: a sealing gasket (1022) is arranged on the surface, which is in clamping contact with the first ring body (101), of the second ring body (102).