CN219953506U

CN219953506U - Motorcycle engine piston

Info

Publication number: CN219953506U
Application number: CN202321618236.2U
Authority: CN
Inventors: 严伟华; 陈金香; 丘腾元
Original assignee: Fujian Youfu New Energy Technology Co ltd
Current assignee: Fujian Youfu New Energy Technology Co ltd
Priority date: 2023-06-26
Filing date: 2023-06-26
Publication date: 2023-11-03
Anticipated expiration: 2033-06-26

Abstract

The utility model discloses a motorcycle engine piston, which comprises a piston main body, wherein two gas ring grooves are formed in the outer part of the piston main body and are parallel to each other, an oil ring groove is formed in the outer part of the piston main body and is positioned below the two gas ring grooves, pin seats are fixedly connected in the piston main body, a plurality of deep grooves for dredging lubricating oil to the depth of the inner wall of the piston main body are formed in the inner cavity of the piston main body, and oil injection ring grooves for collecting the lubricating oil are formed in the bottom of the piston main body. According to the utility model, through sequentially passing the oil injection annular groove, the deep groove and the oil guide ring groove through the lubricating oil, and finally smearing the lubricating oil on the inner wall of the engine cylinder through the oil outlet, the friction between the piston and the inner wall of the cylinder can be reduced, the phenomenon of cylinder pulling is reduced, and the service life of the engine is prolonged.

Description

Motorcycle engine piston

Technical Field

The utility model relates to the technical field of motorcycle engine parts, in particular to a motorcycle engine piston.

Background

The piston of the motorcycle engine can keep the tightness of the compressed mixed gas in the cylinder, control engine oil in the crankcase of the engine to enter the combustion chamber excessively, effectively transfer the heat of the top of the piston to the cooling fin of the cylinder body, and effectively prevent the piston from being in strong contact with the cylinder wall.

In the working process of the engine, the piston and the inner wall of the engine cylinder can generate friction, however, when the lubrication of the piston and the inner wall of the engine cylinder is insufficient, the phenomenon of cylinder pulling can occur, the engine is greatly damaged, and the service life of the engine is shortened.

Therefore, it is necessary to invent a motorcycle engine piston to solve the above problems.

Disclosure of Invention

The utility model provides a motorcycle engine piston, which solves the problems in the prior art by sequentially enabling lubricating oil to pass through an oiling annular groove, a deep groove and an oil guiding ring groove and finally smearing the lubricating oil on the inner wall of an engine cylinder through an oil outlet.

In order to achieve the above object, the embodiment of the present utility model provides the following technical solutions: the utility model provides a motorcycle engine piston, includes the piston main part, two air ring grooves have been seted up to the outside of piston main part, and two air ring grooves are parallel to each other, the oil ring groove has been seted up to the outside of piston main part, and the oil ring groove is located the below of two air ring grooves, the inside fixedly connected with key seat of piston main part, a plurality of deep grooves that are used for leading lubricating oil to piston main part inner wall depths have been seted up to the inner chamber of piston main part, the oiling ring groove that is used for collecting lubricating oil has been seted up to the bottom of piston main part.

As a preferable mode of the present utility model, a plurality of the deep grooves extend to the inside along the inner cavity of the piston main body, the plurality of the deep grooves are all L-shaped, and the plurality of the deep grooves are all communicated with the oil injection ring groove.

As a preferable mode of the utility model, the inner cavity of the piston main body is provided with the oil guiding ring groove, the oil guiding ring groove is communicated with the deep groove, and the oil guiding ring groove is vertically intersected with the deep groove.

As a preferable scheme of the utility model, a plurality of oil outlet holes which are uniformly distributed are formed in the oil guide ring groove, and the oil outlet holes penetrate through the piston main body.

As a preferable mode of the utility model, the intersection of the deep groove, the oil injection ring groove and the oil guide ring groove is subjected to fillet treatment.

As a preferable scheme of the utility model, the bottom of the inner cavity of the piston main body is in a horn shape, and the oil guide ring groove is positioned at the minimum mouth of the horn mouth.

As a preferable scheme of the utility model, the air ring groove is in a single-sided wedge shape, and the oblique angle of the wedge is fifteen degrees.

In the technical scheme, the utility model has the technical effects and advantages that:

lubricating oil sequentially passes through the oil injection annular groove, the deep groove and the oil guide ring groove and finally is smeared on the inner wall of the engine cylinder through the oil outlet, so that friction between the piston and the inner wall of the cylinder can be reduced, the phenomenon of cylinder pulling is reduced, and the service life of the engine is prolonged.

Drawings

FIG. 1 is a schematic view of the overall structure provided by the present utility model;

fig. 2 is a schematic diagram of an overall cross-sectional structure provided by the present utility model.

In the figure: 1. a piston body; 2. an air ring groove; 3. an oil ring groove; 4. a pin base; 5. oiling the annular groove; 6. deep into the groove; 7. an oil guiding ring groove; 8. and an oil outlet.

Detailed Description

In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.

The utility model provides a motorcycle engine piston as shown in fig. 1-2, which comprises a piston main body 1, wherein two gas ring grooves 2 are formed in the outer part of the piston main body 1, the two gas ring grooves 2 are parallel to each other, an oil ring groove 3 is formed in the outer part of the piston main body 1, the oil ring groove 3 is positioned below the two gas ring grooves 2, a pin seat 4 is fixedly connected to the inner part of the piston main body 1, a plurality of deep grooves 6 for dredging lubricating oil to the deep part of the inner wall of the piston main body 1 are formed in the inner cavity of the piston main body 1, and an oil injection ring groove 5 for collecting the lubricating oil is formed in the bottom of the piston main body 1.

Further, in the above technical scheme, a plurality of deep grooves 6 extend to the inside along the inner cavity of the piston main body 1, a plurality of deep grooves 6 are all L-shaped, and a plurality of deep grooves 6 are all communicated with the oil injection ring groove 5, and lubrication can be poured into the piston main body 1 through the set deep grooves 6.

Furthermore, in the above technical scheme, the inner cavity of the piston main body 1 is provided with the oil guiding ring groove 7, the oil guiding ring groove 7 is communicated with the deep groove 6, and the oil guiding ring groove 7 is vertically intersected with the deep groove 6, and lubricating oil entering the interior of the piston main body 1 can be collected through the arranged oil guiding ring groove 7 communicated with the deep groove 6.

Further, in the above technical scheme, the inside in oil guide ring groove 7 has offered a plurality of evenly distributed's oil outlet 8, and a plurality of oil outlet 8 all run through piston main part 1, can smear lubricating oil at the cylinder inner wall through the oil outlet 8 that sets up to reduce the friction of piston and cylinder inner wall, reduce and appear drawing the jar phenomenon.

Furthermore, in the above technical scheme, the intersection of the deep groove 6, the oil injection annular groove 5 and the oil guide ring groove 7 is rounded, and the lubricating oil can flow more smoothly through the rounded treatment.

Furthermore, in the above technical scheme, the bottom of the inner cavity of the piston main body 1 is in a horn shape, and the oil guiding ring groove 7 is positioned at the minimum mouth of the horn, so that the lubricating oil can be conveniently collected by designing the bottom of the inner cavity of the piston main body 1 into a horn shape, and the lubricating oil can smoothly flow into the oil guiding ring groove 5.

Further, in the above technical solution, the air ring groove 2 is a single-sided wedge, and the oblique angle of the wedge is fifteen degrees.

When the motorcycle engine piston provided by the utility model is used, the working process is as follows:

when the motorcycle engine piston works, lubricating oil sequentially passes through the oil injection annular groove 5, the deep groove 6 and the oil guide ring groove 7 and finally is smeared on the inner wall of the engine cylinder through the oil outlet 8, so that the friction between the piston and the inner wall of the cylinder can be reduced, the phenomenon of cylinder pulling is reduced, and the service life of the engine is prolonged.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. Motorcycle engine piston, including piston body (1), its characterized in that: two gas ring grooves (2) have been seted up to the outside of piston main part (1), and two gas ring grooves (2) are parallel to each other, oil ring groove (3) have been seted up to the outside of piston main part (1), and oil ring groove (3) are located the below of two gas ring grooves (2), the inside fixedly connected with cotter seat (4) of piston main part (1), a plurality of deep grooves (6) that are used for dredging lubricating oil to piston main part (1) inner wall depths have been seted up to the inner chamber of piston main part (1), oiling ring groove (5) that are used for collecting lubricating oil have been seted up to the bottom of piston main part (1).

2. A motorcycle engine piston as claimed in claim 1, wherein: the plurality of deep grooves (6) extend to the inside along the inner cavity of the piston main body (1), the plurality of deep grooves (6) are L-shaped, and the plurality of deep grooves (6) are communicated with the oil injection ring groove (5).

3. A motorcycle engine piston as claimed in claim 1, wherein: an inner cavity of the piston main body (1) is provided with an oil guide ring groove (7), the oil guide ring groove (7) is communicated with the deep groove (6), and the oil guide ring groove (7) is vertically intersected with the deep groove (6).

4. A motorcycle engine piston as claimed in claim 3, wherein: the inside of oil guide ring groove (7) has offered a plurality of evenly distributed's oil outlet (8), and a plurality of oil outlet (8) all run through piston main part (1).

5. A motorcycle engine piston as claimed in claim 1, wherein: the intersection of the deep groove (6) with the oil injection ring groove (5) and the oil guide ring groove (7) is subjected to fillet treatment.

6. A motorcycle engine piston as claimed in claim 1, wherein: the bottom of the inner cavity of the piston main body (1) is horn-shaped, and the oil guide ring groove (7) is positioned at the minimum mouth of the horn mouth.

7. A motorcycle engine piston as claimed in claim 1, wherein: the gas ring groove (2) is in a single-sided wedge shape, and the oblique angle of the wedge is fifteen degrees.