CN207777014U - A kind of engine piston with the Slideslip wing - Google Patents

Abstract

The utility model is related to piston technical fields, especially a kind of engine piston with the Slideslip wing, including piston only, the top of the piston only is equipped with air pressure annular groove successively, first oil ring groove and the second oil ring groove, the both sides of the piston only are equipped with piston pin hole, the both ends of the piston pin hole inner wall are equipped with fixed annular groove, the lower end of the piston only is arranged with the second groove, the surface of second groove is equipped with third groove, the third groove is internally provided with baffle, the surface of the baffle is equipped with shrapnel, the one end of the link block far from connecting plate is equipped with yawed wing, the surface of the yawed wing is arc surface.The structure of the link block and connecting plate of the utility model setting, when yawed wing expanded by heating deforms, extrusion elastic both ensure that yawed wing was fitted closely with piston cylinder endoporus, it is more stable when work, it also ensures and does not have excessive friction between yawed wing and piston cylinder endoporus.

Description

A kind of engine piston with the Slideslip wing

Technical field

The utility model is related to piston technical field more particularly to a kind of engine pistons with the Slideslip wing.

Background technology

Piston main function is subject to the combustion pressure in cylinder, and this power is passed to song by piston pin and connecting rod The bottom of axis, existing piston only is that entire outer circle or two nearly quarter circular arcs are contacted with piston cylinder endoporus, entire outer circle Contact becomes large-sized and is deformed after by high-temperature heat expansion when piston only can be made to work, and bigger is had between piston cylinder endoporus Friction, influences service life, the bad stability when contact of two nearly quarter circular arcs may then make piston only work, Also service life is influenced；Piston pin meeting circumferential movement, causes piston pin and piston cylinder endoporus hole wall friction, influences to use the longevity Life.

Utility model content

Purpose of the utility model is to solve unstable and easy and pistons when pistons work exists in the prior art The shortcomings that cylinder endoporus rubs, and a kind of engine piston with the Slideslip wing proposed.

To achieve the goals above, the utility model uses following technical solution：

A kind of engine piston with the Slideslip wing, including piston only are designed, the top of the piston only is set successively There are air pressure annular groove, the first oil ring groove and the second oil ring groove, the slot bottom of second oil ring groove to be equipped with oil return hole, the piston only Be internally provided with the first groove, the inner wall of first groove is arranged with fixed seat, and the lower end of the fixed seat is equipped with lubrication Hole, first groove are equipped with skewback close to the side inner wall of oil return hole, and the skewback is located at the lower section of oil return hole, the piston The both sides of ontology are equipped with piston pin hole, and the piston pin hole runs through fixed seat, the top of the lubrication hole and piston pin hole Surface connects, and the both ends of the piston pin hole inner wall are equipped with fixed annular groove, and the inner wall at the piston pin hole both ends, which is equipped with, to be taken Annular distance, the surface for taking annular distance to stretch into fixed annular groove, the lower end of the piston only are arranged with the second groove, and described second The surface of groove is equipped with third groove, and the third groove is internally provided with baffle, and the surface of the baffle is equipped with shrapnel, described The diameter of shrapnel is more than the diameter at third slot opening, and second groove is internally provided with connecting plate, and the connecting plate is remote Surface from the second groove side is equipped with link block, and the one end of the link block far from connecting plate is equipped with yawed wing, the sideslip The surface of the wing is arc surface, and with the outer circle of piston only on same cylindrical surface.

Preferably, the following face of the oil return hole is equipped with oil-through hole, the lower end of the oil-through hole and the surface of piston pin hole Connection.

Preferably, the thickness of the setting of two fixed seats is different.

Preferably, the surface of the baffle is equipped with spring, and the surface of the spring one end and shrapnel far from baffle connects.

Preferably, the shrapnel is arc.

The utility model proposes a kind of engine piston with the Slideslip wing, advantageous effect is：The link block of setting With the structure of connecting plate, when yawed wing expanded by heating deforms, extrusion elastic both ensure that yawed wing and piston cylinder endoporus were close Fitting, when work, are more stable, also ensure and do not have excessive friction between yawed wing and piston cylinder endoporus；The fixed ring of setting Slot and take ring pore structures, ensure that piston pin will not circumferential movement, avoid piston pin and rub with the contact of piston cylinder endoporus hole wall It wipes, improves service life, be also convenient for quickly changeing for piston pin.

Description of the drawings

Fig. 1 is the structural front view of the utility model；

Fig. 2 is the structure left view of the utility model；

Fig. 3 is the location A schematic enlarged-scale view of the utility model.

In figure：Piston only 1, the first oil ring groove 3, the second oil ring groove 4, oil return hole 5, the first groove 6, is consolidated air pressure annular groove 2 Reservation 7, skewback 9, piston pin hole 10, fixed annular groove 11, takes annular distance 12, the second groove 13, third groove 14, baffle at lubrication hole 8 15, shrapnel 16, connecting plate 17, link block 18, yawed wing 19, oil-through hole 20.

Specific implementation mode

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.

Referring to Fig.1-3, a kind of engine piston with the Slideslip wing, including piston only 1, the top of the piston only 1 Portion is equipped with air pressure annular groove 2, the first oil ring groove 3 and the second oil ring groove 4 successively, and the slot bottom of second oil ring groove 4 is equipped with oil return hole 5, the piston only 1 is internally provided with the first groove 6, and the inner wall of first groove 6 is arranged with fixed seat 7, described solid The lower end of reservation 7 is equipped with lubrication hole 8, and first groove 6 is equipped with skewback 9, the skewback 9 close to the side inner wall of oil return hole 5 Positioned at the lower section of oil return hole 5, the both sides of the piston only 1 are equipped with piston pin hole 10, and the piston pin hole 10 is through fixation Seat 7, the thickness of the setting of two fixed seats 7 is different, ensure that the promotion center of piston with 1 center of piston only not same On one axis, the promotion for being more advantageous to piston is shaken without both sides, improves stability when pistons work.

The top of the lubrication hole 8 is connect with the surface of piston pin hole 10, and the following face of the oil return hole 5 is equipped with oil-through hole 20, the lower end of the oil-through hole 20 is connect with the surface of piston pin hole 10, has oil to pass through oil-through hole when ensure that 5 oil return of oil return hole 20 enter piston pin hole 10, increase the lubricating action between piston pin and piston hole 10,10 inner wall of the piston pin hole Both ends are equipped with fixed annular groove 11, and the inner wall at 10 both ends of the piston pin hole, which is equipped with, takes annular distance 12, described that annular distance 12 is taken to stretch into The surface of fixed annular groove 11 takes annular distance 12 to be conducive to fixed ring installation and removal.

The lower end of the piston only 1 is arranged with the second groove 13, and the surface of second groove 13 is recessed equipped with third Slot 14, the third groove 14 are internally provided with baffle 15, and the surface of the baffle 15 is equipped with shrapnel 16, the shrapnel 16 it is straight Diameter is more than the diameter of 14 opening of third groove, and the shrapnel 16 is arc, when shrapnel 16 is acted on by power, it is easier to pass through Arcwall face disperses, and the surface of the baffle 15 is equipped with spring, and the one end of the spring far from baffle 15 and the surface of shrapnel 16 connect It connects, the cushion effect of bigger can be provided when shrapnel 16 is squeezed, second groove 13 is internally provided with connecting plate 17, described Surface of the connecting plate 17 far from 13 side of the second groove is equipped with link block 18, and the one end of the link block 18 far from connecting plate 17 is set There is yawed wing 19, the surface of the yawed wing 19 is arc surface, and with the outer circle of piston only 1 on same cylindrical surface.

Yawed wing 19 ensure that the bottom of piston only 1 neither entire outer circle is contacted with piston cylinder endoporus, nor four / mono- circular arc is contacted with piston cylinder endoporus, therefore can be reduced friction and be maintained stability, and yawed wing 19 is at high temperature, swollen After bulging deformation, by 18 extrusion elastic 16 of connecting plate 17 and link block, the shrapnel 16 of deformation allows yawed wing 19 and piston cylinder endoporus It fits closely, and does not generate excessive friction with piston cylinder endoporus wall surface, therefore both reduced friction and in turn ensured stability；It is fixed Annular groove 11 ensure that piston pin will not circumferential movement, avoid the contact friction of piston pin and piston cylinder endoporus hole wall, raising makes Use the service life.

The preferable specific implementation mode of the above, only the utility model, but the scope of protection of the utility model is not Be confined to this, any one skilled in the art within the technical scope disclosed by the utility model, according to this practicality Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model Within enclosing.

Claims (5)

1. a kind of engine piston with the Slideslip wing, including piston only（1）, the piston only（1）Top set successively There is air pressure annular groove（2）, the first oil ring groove（3）With the second oil ring groove（4）, second oil ring groove（4）Slot bottom be equipped with oil return hole （5）, which is characterized in that the piston only（1）Be internally provided with the first groove（6）, first groove（6）Inner wall it is symmetrical Equipped with fixed seat（7）, the fixed seat（7）Lower end be equipped with lubrication hole（8）, first groove（6）Close to oil return hole（5）'s Side inner wall is equipped with skewback（9）, the skewback（9）Positioned at oil return hole（5）Lower section, the piston only（1）Both sides be all provided with There is piston pin hole（10）, the piston pin hole（10）Through fixed seat（7）, the lubrication hole（8）Top and piston pin hole （10）Surface connection, the piston pin hole（10）The both ends of inner wall are equipped with fixed annular groove（11）, the piston pin hole（10） The inner wall at both ends, which is equipped with, takes annular distance（12）, described to take annular distance（12）Stretch into fixed annular groove（11）Surface, the piston only （1）Lower end be arranged with the second groove（13）, second groove（13）Surface be equipped with third groove（14）, the third Groove（14）Be internally provided with baffle（15）, the baffle（15）Surface be equipped with shrapnel（16）, the shrapnel（16）Diameter More than third groove（14）The diameter of opening, second groove（13）Be internally provided with connecting plate（17）, the connecting plate （17）Far from the second groove（13）The surface of side is equipped with link block（18）, the link block（18）Far from connecting plate（17）One End is equipped with yawed wing（19）, the yawed wing（19）Surface be arc surface, and and piston only（1）Outer circle in same cylinder On face.

2. a kind of engine piston with the Slideslip wing according to claim 1, which is characterized in that the oil return hole（5） Following face be equipped with oil-through hole（20）, the oil-through hole（20）Lower end and piston pin hole（10）Surface connection.

3. a kind of engine piston with the Slideslip wing according to claim 1, which is characterized in that two fixed seats （7）Setting thickness it is different.

4. a kind of engine piston with the Slideslip wing according to claim 1, which is characterized in that the baffle（15）'s Surface is equipped with spring, and the spring is far from baffle（15）One end and shrapnel（16）Surface connection.

5. a kind of engine piston with the Slideslip wing according to claim 1, which is characterized in that the shrapnel（16）For Arc.