CN201560857U

CN201560857U - Piston

Info

Publication number: CN201560857U
Application number: CN2009202066629U
Authority: CN
Inventors: 李飞; 钱学文
Original assignee: Chongqing Zongshen Engine Manufacturing Co Ltd
Current assignee: Chongqing Zongshen Engine Manufacturing Co Ltd
Priority date: 2009-10-15
Filing date: 2009-10-15
Publication date: 2010-08-25
Anticipated expiration: 2019-10-15

Abstract

The utility model relates to a piston comprising a piston body (1), piston skirt parts fixedly connected with the piston body (1) and a pin hole (2) arranged between the piston body (1) and the piston skirt part, wherein the piston skirt parts are more than two arc skirt blocks (3) fixed on the piston body (1).The piston not only has light weight, but also the resistance and the inertia force when a cylinder body runs are both small, the strength is high, and the radiating effect is good.

Description

A kind of piston

Technical field

The utility model relates to a kind of motor, is specifically related to be applied to a kind of piston on the motorcycle engine.

Background technique

General in the market engine piston comprises piston only, the some annular grooves on the upper body, the piston skirt of fixedlying connected with piston only is set, and this piston skirt is a circle ring column, and itself and piston only joint are provided with pin-and-hole.The intensity of engine piston of this structure is not high, weight is bigger than normal, and resistance and the inertial force of piston when moving in engine cylinder-body is big, and radiating effect is bad.

The model utility content

The purpose of this utility model provides a kind of in light weight and piston that intensity is high.

The purpose of this utility model is achieved through the following technical solutions: a kind of piston, comprise piston only, the piston skirt of fixedlying connected with described piston only and be arranged at pin-and-hole between described piston only and the piston skirt, described piston skirt is the arc skirt piece that is fixed in more than two on the described piston only.

In order by the weight that reduces described piston skirt the weight of piston to be reduced, described arc skirt piece is two, and it is symmetrically fixed on the described piston only.

In order to improve the intensity of piston pin boss, increase the heat diffusion area of piston simultaneously, have additional stiffening rib A between the described arc skirt piece; Described stiffening rib A is fixedlyed connected with two described arc skirt pieces and piston pin boss, and its root is fixedlyed connected with described piston only.

But described arc skirt piece and described pin-and-hole interlaced arrangement; In order to guarantee the stressed even of described arc skirt piece, described arc skirt piece and described pin-and-hole are good with quadrature arrangement; Can certainly arrange its relative position according to concrete needs.

In order further to reduce the weight of piston, described piston only is provided with pit; Described pit is arranged at described piston only and described stiffening rib A junction surface place and corresponding with described pin-and-hole position.

Described pin-and-hole is communicated with described pit is non-, thereby can reduce the length of described pin-and-hole.

In order further to improve the intensity of piston, be provided with stiffening rib B between described piston pin boss and the described body; Described stiffening rib B arranges across described pit; Root and the described piston only of this stiffening rib B are fixedly connected as good.

Piston skirt in the utility model adopts two arc skirt pieces to combine, not only reduced the area of contact of piston skirt and engine cylinder-body, also reduced the weight of piston simultaneously, thus resistance and inertial force when having reduced further that piston moves in engine cylinder-body, the material-saving material-saving; The utility model has been set up stiffening rib A between arc skirt piece, when improving piston intensity, also increased the heat diffusion area of piston, promptly adopt big heat dispersing surface structure to reduce the heat load that the engine chamber burning is produced apace, thereby improve its radiating effect, the working life of reducing fuel consumption and improving engine piston; Also be provided with pit on the piston only, it is arranged at piston only and stiffening rib A surface of contact place and corresponding with the position of pin-and-hole, and pin-and-hole is not communicated with pit, and this has not only further reduced the weight of piston, has also reduced the length of piston pin hole simultaneously.

Description of drawings

Fig. 1 is the worm's eye view of piston among the utility model embodiment 1.

Fig. 2 is the partial sectional view on the piston master apparent direction among Fig. 1.

Fig. 3 is the perspective reference drawing of piston among Fig. 1.

Embodiment

The utility model is described in further detail below in conjunction with the drawings and specific embodiments, but therefore the utility model is not limited among the following concrete mode.

Embodiment 1: as Fig. 1, Fig. 2 and shown in Figure 3, a kind of piston, comprise piston only 1, the piston skirt of fixedlying connected with piston only 1 and be arranged at pin-and-hole 2 between piston only 1 and the piston skirt, the piston skirt is two arc skirt pieces 3 that are fixed on the piston only 1; Two arc skirt pieces 3 are symmetrically fixed on the piston only 1, thereby to reduce the weight of piston by the weight that reduces the piston skirt; Have additional stiffening rib A4 between the arc skirt piece 3; Stiffening rib A4 is fixedlyed connected with two arc skirt pieces 3 and piston pin boss 6, and its root is fixedlyed connected with piston only 1, thereby has also increased the heat diffusion area of piston when improving piston intensity; Piston only 1 is provided with pit 5, further to reduce the weight of piston; Arc skirt piece 3 and pin-and-hole 2 quadrature arrangement; Pit 5 is arranged at piston only 1 and stiffening rib A4 junction surface place and corresponding with pin-and-hole 2 positions; Pin-and-

hole

2 and 5 non-connections of pit, and then reduce the length of pin-and-hole 2; Be provided with stiffening rib B7 between described piston pin boss 6 and the described body 1; Described stiffening rib B7 arranges across described pit 5; The root of described stiffening rib B7 is fixedlyed connected with described piston only 1.

Claims

1. piston, comprise piston only (1), the piston skirt of fixedlying connected with described piston only (1) and be arranged at pin-and-hole (2) between described piston only (1) and the piston skirt, it is characterized in that: described piston skirt is the arc skirt piece (3) that is fixed in more than two on the described piston only (1).

2. piston as claimed in claim 1 is characterized in that: described arc skirt piece (3) is two, and it is symmetrically fixed on the described piston only (1).

3. piston as claimed in claim 1 or 2 is characterized in that: have additional stiffening rib A (4) between the described arc skirt piece (3); Described stiffening rib A (4) is fixedlyed connected with two described arc skirt pieces (3) and piston pin boss (6), and its root is fixedlyed connected with described piston only (1).

4. piston as claimed in claim 3 is characterized in that: described arc skirt piece (3) and described pin-and-hole (2) interlaced arrangement.

5. piston as claimed in claim 4 is characterized in that: described arc skirt piece (3) and described pin-and-hole (2) quadrature arrangement.

6. piston as claimed in claim 5 is characterized in that: described piston only (1) is provided with pit (5); Described pit (5) is arranged at described piston only (1) and described stiffening rib A (4) junction surface place and corresponding with described pin-and-hole (2) position.

7. piston as claimed in claim 6 is characterized in that: described pin-and-hole (2) and non-connection of described pit (5).

8. piston as claimed in claim 7 is characterized in that: be provided with stiffening rib B (7) between described piston pin boss (6) and the described body (1); Described stiffening rib B (7) arranges across described pit (5).

9. piston as claimed in claim 8 is characterized in that: the root of described stiffening rib B (7) is fixedlyed connected with described piston only (1).