CN207974941U

CN207974941U - Zirconia ceramics piston body

Info

Publication number: CN207974941U
Application number: CN201820353151.9U
Authority: CN
Inventors: 陆永明; 朱晨红
Original assignee: Zhejiang Hong Taigao Industry Science And Technology Ltd
Current assignee: Zhejiang Hong Taigao Industry Science And Technology Ltd
Priority date: 2018-03-15
Filing date: 2018-03-15
Publication date: 2018-10-16
Anticipated expiration: 2028-03-15

Abstract

Zirconia ceramics piston body, it includes one and the trunk-piston body that piston cylinder is mating, is made with nano zirconia material, in the outside wall surface of the trunk-piston body at least provided with it is axial arranged at two, be often in symmetrical three pieces of tangent radial discount vibram outlets on same annulus, and the central incision of radial discount vibram outlet is made to be connected to the inner cavity of trunk-piston body；It is provided at axially adjacent two in the outside wall surface of the trunk-piston body, is often in the radial discount vibram outlets of symmetrically tangent on same annulus three pieces, the width of described three pieces radial discount vibram outlets is more than axially spaced a distance at two；The radial direction discount vibram outlet and the tangent notch radial width of inner circle of trunk-piston body are more than the radial distance of adjacent two radial discount vibram outlets and the inner circle points of tangency of trunk-piston body；It has the features such as simple in structure, easy to use and reliable, thermal stability is good, and density is high, and intensity is good, wear-resistant, anticorrosion, and sealing effect is good, and service life is long.

Description

Zirconia ceramics piston body

Technical field

The utility model relates to a kind of zirconia ceramics piston bodies, are mainly used for piston compressor, engine, gas On cylinder action part, the zirconia ceramics piston body of especially small-sized gas and oil cylinder power part belongs to piston type power technology neck Domain.

Background technology

Piston type power part application range is wider at present, includes the piston type of small-sized gas and oil cylinder power part and large size Compressor and engine；Due to being a kind of moving component, piston body moves back and forth in piston cavity, it will generates high temperature and height Pressure condition is made since current piston body mostly uses greatly technologic material, and piston body thermal stability made of metal material is poor, The reasons such as the coefficient of expansion is big, and wear-resisting property is bad cause the service life of metal piston body not grown, although some metal materials at present Be added to wear-resisting element in material and improve processing technology, but it is poor there are still sealing effect the defects of.

Invention content

The purpose of the utility model is to overcome the shortcomings of the prior art, and provide a kind of simple in structure, user It can lean on, thermal stability is good, and density is high, and intensity is good, wear-resistant, anticorrosion, and sealing effect is good, zirconium oxide pottery with long service life Porcelain piston body.

The purpose of this utility model is completed by following technical solution, a kind of zirconia ceramics piston body, it is wrapped Include one with piston cylinder is mating, the trunk-piston body that is made with nano zirconia material, the trunk-piston body it is outer On wall surface at least provided with it is axial arranged at two, be often in symmetrical three pieces of tangent radial discount vibram outlets on same annulus, and make diameter The inner cavity of trunk-piston body is connected to the central incision of discount vibram outlet.

As preferred：It is provided at axially adjacent two in the outside wall surface of the trunk-piston body, is often in same annulus Upper symmetrical three pieces of tangent radial discount vibram outlets, the width of described three pieces radial discount vibram outlets are more than axially spaced a distance at two；The diameter It is more than the inner circle of adjacent two radial discount vibram outlets and trunk-piston body to discount vibram outlet and the tangent notch radial width of inner circle of trunk-piston body The radial distance of points of tangency.

The utility model belongs to improvements over the prior art, it has simple in structure, easy to use and reliable, thermal stability Well, the features such as density is high, and intensity is good, wear-resistant, anticorrosion, and sealing effect is good, and service life is long.

Description of the drawings

Fig. 1 is the dimensional structure diagram of the utility model.

Fig. 2 is axial schematic cross-sectional view described in the utility model.

Fig. 3 is A-A sectional views of Fig. 2.

Specific implementation mode

The utility model is described in detail below in conjunction with attached drawing：Shown in Fig. 1-3, one kind described in the utility model Zirconia ceramics piston body, it includes one and the trunk-piston body that piston cylinder is mating, is made with nano zirconia material 1, in the outside wall surface of the trunk-piston body 1 at least provided with it is axial arranged at two, be often in symmetrical phase on same annulus 2 The three pieces of radial discount vibram outlets 3 cut, and make the inner cavity of the connection trunk-piston of central incision 4 body 1 of radial discount vibram outlet 3.

As shown in the figure, embodiment as one preferred is arranged in the outside wall surface of trunk-piston body 1 described in the utility model Have at axially adjacent two, be often in symmetrical three pieces of tangent radial discount vibram outlets 3 on same annulus 2, three pieces of radial directions discount vibram outlet 3 Width 5 is more than the distance of axially spaced-apart 6 at two；The radial direction discount vibram outlet 3 and the tangent notch 7 of inner circle of trunk-piston body 1 are radially-wide Degree 8 is more than the radial distance 10 of adjacent two radial discount vibram outlets 3 and the inner circle points of tangency 9 of trunk-piston body 1.

The utility model is made of nano zirconia material, and density is high, and intensity is good, and anticorrosion is wear-resistant, sealing performance Good, elasticity modulus is more than 195Gpa, and Vickers hardness is more than 1200Kgf/mm², density is more than 5.98g/cm³, fracture toughness is more than 5Mpa.m^1/2。

Claims

1. zirconia ceramics piston body, it includes one and the tubular that piston cylinder is mating, is made with nano zirconia material Piston body, feature in the outside wall surface of the trunk-piston body at least provided with two at it is axial arranged, be often in it is same Symmetrical three pieces of tangent radial discount vibram outlets on annulus, and make the inner cavity of the central incision connection trunk-piston body of radial discount vibram outlet.

2. zirconia ceramics piston body according to claim 1, it is characterised in that in the outside wall surface of the trunk-piston body It is provided at axially adjacent two, is often in symmetrical three pieces of tangent radial discount vibram outlets, described three pieces radial discount vibram outlets on same annulus Width be more than two at axially spaced a distance；The radial direction discount vibram outlet and the tangent notch radial width of inner circle of trunk-piston body are big In the radial distance of adjacent two radial discount vibram outlets and the inner circle points of tangency of trunk-piston body.