CN201925154U - Piston rod with reinforced surface - Google Patents
Piston rod with reinforced surface Download PDFInfo
- Publication number
- CN201925154U CN201925154U CN201020652887XU CN201020652887U CN201925154U CN 201925154 U CN201925154 U CN 201925154U CN 201020652887X U CN201020652887X U CN 201020652887XU CN 201020652887 U CN201020652887 U CN 201020652887U CN 201925154 U CN201925154 U CN 201925154U
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- CN
- China
- Prior art keywords
- piston rod
- working surface
- bottom layer
- service life
- oil cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Pistons, Piston Rings, And Cylinders (AREA)
- Actuator (AREA)
Abstract
The utility model provides a piston rod with a reinforced surface. The piston rod is characterized in that a working surface of the piston rod is provided with a bottom layer; a reinforced layer is arranged on the surface of the bottom layer. A 18-8 type austenitic stainless steel bottom layer with a thickness of 1-3 mm is compounded on the working surface of the piston rod which adopts a medium-carbon tempered steel main body via a laser cladding technology, and a 1Cr13 type austenitic stainless steel reinforced layer with a thickness of 2-4 mm is compounded on the bottom layer, so that the integral strength of the piston rod is maintained, the working surface has high wear-resistant property and corrosion-resistant property, and the piston rod cannot be discarded or replaced too early because of the abrasion and corrosion of the working surface in the running process; the service life is two times longer than the service life of the common piston rod; the running noise of a hydraulic oil cylinder can be effectively reduced; the output power and running precision of the hydraulic oil cylinder are stabilized; the service life of the whole piston rod is greatly prolonged; the piston rod has no need of integral replacement, and only needs the working surface to be repaired, so that the performance-price ratio is high.
Description
Technical field
The utility model relates to the hydraulic jack in mechanized equipment field, particularly a kind of surface peening piston rod.
Background technique
Oil cylinder is because commutation is easy; can conveniently realize overload protection; can in given range, regulate hauling speed stably automatically; and can realize stepless time adjustment; characteristics such as automaticity height; be widely used in the Hydraulic Power Transmission System of mechanical device, piston rod is the chief component of hydraulic transmission oil cylinder, also is that the pressure hydraulic oil in the hydraulic transmission oil cylinder converts the load-bearing component that driving force is exported to.Under the pressure effect of hydraulic oil, piston rod is made linear reciprocating motion continually in oil cylinder, when in case foreign matters such as scarce cutting oil of appearance or dust enter in the cylinder, to cause piston pole face plucking, hydraulic fluid leak, the kinematic accuracy of oil cylinder and the conversion efficiency of power are reduced, even oil cylinder is scrapped, cause whole mechanical system stop work and production.If can carry out enhancement process on pot type piston bar surface, particularly working surface, can greatly prolong piston rod working life, realize running steady in a long-term.
Patent ［ ZL02133205.3 ］ has been invented a kind of hardening ceramic processing method for surface of piston rod, handles that by ceramic spraying the piston rod life-span is greatly improved.Patent ［ CN101580926 ］ discloses a kind of method that improves piston rod surface hardness and wear resistance with salt-bath heat treatment technology.Patent ［ CN2859104 ］ discloses a kind of technology of piston rod surface thermal Sperayed Ceramic Coatings.Above patent all is surface abrasion resistance and the working life with thermal spraying or heat treatment mode jigger lifting piston bar, the ceramic coating and the matrix that spray with the thermal spraying mode are in physical engagement, engaging force is low, come off easily, and pass through heat treatment process, surface hardness and wear resistance that can only the slight lifted piston rod, and technology is loaded down with trivial details, the quality instability.
Summary of the invention
The purpose of this utility model is to provide a kind of wear-resisting property good, the surface peening piston rod of long service life.
The utility model provides a kind of like this surface peening piston rod, it is characterized in that being provided with bottom at the working surface of described piston rod, is provided with strengthened layer in bottom surface.
Described underlayer thickness is 1～3mm.
Described strengthened layer thickness is 2～4mm.
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 and the corrosion resistance of piston rod working surface.
The utlity model has following advantage and effect: adopt such scheme, promptly on the piston rod working surface that is body with middle carbon Hardened And Tempered Steel, pass through laser melting and coating technique, 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 2～4mm on this bottom again, the bulk strength that had both kept piston rod, make working surface have very high wear resistance and corrosion resistance again, make piston rod in operation process, can be and cause scrapping prematurely because of the wearing and tearing of working surface and corrosion, change, be more than 2 times of conventional piston rod working life, can effectively reduce the hydraulic jack running noises, the output power of stable hydraulic oil cylinder and running precision, greatly prolonged the working life of whole piston rod, and this piston rod do not need integral replacing, only need carry out the working surface reparation and get final product, have very high cost performance, also be fit to large-scale industrialization production.
Description of drawings
Fig. 1 is a surface peening piston rod 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 surface peening piston rod that the utility model provides, be on the working surface of described piston rod 1, by laser melting coating 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 3mm is arranged again, as Fig. 1, Fig. 2.
Claims (3)
1. a surface peening piston rod is characterized in that being provided with bottom at the working surface of described piston rod, is provided with strengthened layer in bottom surface.
2. surface peening piston rod according to claim 1 is characterized in that described underlayer thickness is 1～3mm.
3. surface peening piston rod according to claim 1 is characterized in that described strengthened layer thickness is 2～4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020652887XU CN201925154U (en) | 2010-12-10 | 2010-12-10 | Piston rod with reinforced surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020652887XU CN201925154U (en) | 2010-12-10 | 2010-12-10 | Piston rod with reinforced surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201925154U true CN201925154U (en) | 2011-08-10 |
Family
ID=44429005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020652887XU Expired - Fee Related CN201925154U (en) | 2010-12-10 | 2010-12-10 | Piston rod with reinforced surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201925154U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141129A (en) * | 2014-07-24 | 2014-11-12 | 燕山大学 | Repairing method for threaded rod |
| WO2015003901A1 (en) * | 2013-07-09 | 2015-01-15 | BSH Bosch und Siemens Hausgeräte GmbH | Linear compressor for a domestic appliance and domestic refrigeration appliance |
-
2010
- 2010-12-10 CN CN201020652887XU patent/CN201925154U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015003901A1 (en) * | 2013-07-09 | 2015-01-15 | BSH Bosch und Siemens Hausgeräte GmbH | Linear compressor for a domestic appliance and domestic refrigeration appliance |
| CN105378281A (en) * | 2013-07-09 | 2016-03-02 | Bsh家用电器有限公司 | Vibration-resistant structure for electric circuit in electrically-powered compressor |
| CN104141129A (en) * | 2014-07-24 | 2014-11-12 | 燕山大学 | Repairing method for threaded rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110810 Termination date: 20161210 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |