CN201925324U

CN201925324U - Composite wear-resistant crankshaft

Info

Publication number: CN201925324U
Application number: CN2011200099292U
Authority: CN
Inventors: 赵国宏; 薛宝根; 李红云; 周景清; 岑启宏
Original assignee: YUNNAN KUNGANG UNITED LASER TECHNOLOGY Co Ltd
Current assignee: YUNNAN KUNGANG UNITED LASER TECHNOLOGY Co Ltd
Priority date: 2011-01-13
Filing date: 2011-01-13
Publication date: 2011-08-10
Anticipated expiration: 2021-01-13

Abstract

The utility model provides a composite wear-resistant crankshaft, which comprises a crankshaft body. The composite wear-resistant crankshaft is characterized in that a bottom layer is arranged on an operating surface, which is adaptive to a rocker, of the crankshaft body, and a reinforcing layer is disposed on the bottom layer. The integral strength of the crankshaft is maintained, the operating surface of the crankshaft is highly wear-resistant and corrosion-resistant, the integral crankshaft cannot be prematurely scraped and replaced due to wearing and corrosion of the operating surface of the crankshaft during operation of the crankshaft, running noise of the crankshaft can be effectively reduced, output power and running precision of the crankshaft are stabilized, the service life of the integral crankshaft is greatly prolonged by twice as long as that of a conventional crankshaft at least, and the crankshaft does not need to be made of expansive alloy integrally due to the fact that only the operating surface is locally compounded, and has extremely high cost performance.

Description

A kind of bent axle of complex abrasion-proof

Technical field

The utility model relates to the bent axle of a kind of bent axle, particularly a kind of complex abrasion-proof, belongs to mechanized equipment manufacturing technology field.

Background technique

In internal-combustion engine, behind the fuel gas buring in the cylinder, chemical energy is transformed into mechanical energy, motion by bent axle and rocking bar then, mechanical energy is outputed in the external equipment, in this process, the working surface of bent axle and rocking bar contacting point is bearing very big load, be in again in the higher working environment of temperature simultaneously, make the bent axle working surface be subjected to strong wearing and tearing, reach certain wear extent after, will cause the size coupling of bent axle and rocking bar inharmonious, the transmission efficiency of power is reduced, produce beat, noise etc., when serious whole drive system is all scrapped.Bring inevitable economic loss to the user.Therefore be necessary prior art is improved.

Summary of the invention

For solving the transmission efficiency reduction that working surface that existing bent axle contact with rocking bar seriously brings because of high temperature wear, problems such as generation is beated, noise, the utility model provides a kind of bent axle of complex abrasion-proof.

The utility model is finished by following technical proposal: a kind of bent axle of complex abrasion-proof, comprise the bent axle body, it is characterized in that on the matched working surface of bent axle body and rocking bar, being provided with bottom, bottom is provided with strengthened layer, so that by the wear resistance and the heat resistent property of bottom and strengthened layer increase working surface, the working life of improving bent axle.

Described underlayer thickness is 1～3mm.

Described strengthened layer thickness is 1～3mm.

Described bottom is a 18-8 type Austenitic Stainless Steel layer; Described strengthened layer is a 1Cr13 type Martensitic Stain Less Steel layer, to improve the wear resistance of bent axle working surface.

The utlity model has following advantage and effect: adopt such scheme, promptly on the bent axle working surface that is body with middle carbon Hardened And Tempered Steel, by the laser cladding technology, be compounded with the thick 18-8 type Austenitic Stainless Steel bottom of 1～3mm, the 1Cr13 type Martensitic Stain Less Steel strengthened layer of compound 1～3mm on this bottom again, the bulk strength that had both kept bent axle, make the bent axle working surface have very high wear resistance again, make bent axle in use, can not cause whole bent axle to be scrapped prematurely because of the wearing and tearing of bent axle working surface, change, can effectively reduce the bent axle running noises, stablize the output power of bent axle, greatly prolong the working life of whole bent axle, be more than 2 times of conventional bent axle working life, and this bent axle does not need whole alloy manufacturing with costliness, has very high cost performance, is fit to large-scale industrialization production yet.

Description of drawings

Fig. 1 is the compound camshaft sectional view;

Fig. 2 is an I portion enlarged view among Fig. 1.

Embodiment

Below in conjunction with accompanying drawing the utility model is described in further detail, but content of the present utility model is not limited to this.

The bent axle of the complex abrasion-proof that the utility model provides, comprise bent axle body 1, on the matched working surface of bent axle body 1 and rocking bar, by laser cladding the thick 18-8 type Austenitic Stainless Steel bottom 2 of 2mm is arranged, at bottom 2 surface laser claddings the thick 1Cr13 type Martensitic Stain Less Steel strengthened layer 3 of 2mm is arranged again, as Fig. 1, Fig. 2, to increase the wear resistance and the heat resistent property of working surface, the working life of improving bent axle.

Claims

1. the bent axle of a complex abrasion-proof comprises the bent axle body, it is characterized in that being provided with bottom on the matched working surface of bent axle body and rocking bar, and bottom is provided with strengthened layer.

2. the bent axle of complex abrasion-proof according to claim 1 is characterized in that described underlayer thickness is 1～3mm.

3. the bent axle of complex abrasion-proof according to claim 1 is characterized in that described strengthened layer thickness is 1～3mm.