CN202348834U - Stainless steel-coated stroke detection piston rod and hydraulic cylinder with same - Google Patents
Stainless steel-coated stroke detection piston rod and hydraulic cylinder with same Download PDFInfo
- Publication number
- CN202348834U CN202348834U CN2011204696767U CN201120469676U CN202348834U CN 202348834 U CN202348834 U CN 202348834U CN 2011204696767 U CN2011204696767 U CN 2011204696767U CN 201120469676 U CN201120469676 U CN 201120469676U CN 202348834 U CN202348834 U CN 202348834U
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- piston rod
- stainless steel
- stroke detection
- coated
- stainless
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- Expired - Fee Related
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model relates to a stainless steel-coated stroke detection piston rod and a hydraulic cylinder with the piston rod. The piston rod comprises a carbon-steel piston rod body and a stainless steel pipe, wherein the stainless steel pipe is coated on the carbon-steel piston body in a cold drawing way; a knurl layer is arranged on the outer surface of the carbon-steel piston rod body; and the thickness of the pipe wall of the stainless steel pipe is 1.0-2.5mm. The stainless steel-coated stroke detection piston rod is simple in manufacturing process and low in investment and is suitable for small-lot multi-specification varieties; the hardness of a surface layer after compounding is greatly enhanced, the chemical corrosion resistance and the mechanical wear are improved, and the stroke can be measured; and energy and materials are saved.
Description
Technical field
The utility model relates to the oil hydraulic cylinder technical field, stainless stroke detection piston rod of especially a kind of coating and hydraulic jack thereof.
Background technique
At present, the aseptic technic of domestic hydraulic cylinder piston rod mainly contains: piston rod chromium plating is anticorrosion, the stainless steel piston rod is anticorrosion, piston rod surface is ceramic coated anticorrosion.
The anticorrosion cleaning ambient that is mainly used in of piston rod chromium plating, anti-corrosion capability is lower, and equipment cost is lower; The stainless steel piston rod can be applicable to salt fog, corrosive atmosphere according to the stainless steel material type of selecting for use, and antiseptic power is outstanding, but equipment cost is higher, because stainless steel material intensity is generally on the low side, needs to increase the specification of piston rod simultaneously; Ceramic coated anticorrosion salt fog, the corrosive atmosphere of being mainly used in of piston rod surface, antiseptic power is outstanding, but equipment cost is higher.
Coat the stainless steel piston rod and mainly adopt high tensile steel to do the piston rod bulk material, the surface coats stainless steel material, has solved the intensity of piston rod, problem such as anticorrosion; Simultaneously, reduced the piston rod manufacture cost.The complex method of stainless steel and carbon steel has blast composite algorithm, synchronous welding process etc., though blast composite algorithm technology is simple, produces flexibly, and technical requirements is high, is difficult to accurate control.The manual operations of welding process synchronously, precision is lower, poor reliability.
The model utility content
The technical problem that the utility model will solve is: in order to solve deficiency of the prior art; The utility model provides a kind of coating stainless stroke detection piston rod; Coat one deck Stainless Steel Tube at this external surface of carbon steel piston rod, energy-saving material-saving, technology is simple; Compound back surface layer hardness improves greatly, has improved resistance to chemical attack and mechanical wear characteristic.
The utility model solves the technological scheme that its technical problem adopted: the stainless stroke detection piston rod of a kind of coating; Comprise carbon steel piston rod body and be coated on the Stainless Steel Tube on the carbon steel piston rod body through cold drawing; The outer surface of described carbon steel piston rod body has annular groove or the thread groove that is used for stroke detection, and the pipe thickness of described Stainless Steel Tube is 1.0～2.5mm.Annular groove or thread groove help improving the adhesive strength between carbon steel piston rod body and the Stainless Steel Tube.
According to the needs of concrete working environment, described Stainless Steel Tube outer surface has chromium coating.
A kind of hydraulic jack that adopts the stainless stroke detection piston rod of above-mentioned coating.
The beneficial effect of the utility model is that the preparation process of the stainless stroke detection piston rod of the coating of the utility model is simple, little investment; Be adapted to many specifications of small lot kind, compound back surface layer hardness improves greatly, has improved resistance to chemical attack and mechanical wear characteristic; And can carry out stroke measurment; Energy-saving material-saving, annular groove or thread groove are used for stroke detection, help improving the adhesive strength between carbon steel piston rod body and the Stainless Steel Tube simultaneously.
Reach the technical performance index of similar all steel piston rod, but cost of production is all steel 30-40%.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the partial sectional view of the stainless stroke detection piston rod of the coating of the utility model;
Fig. 2 is the sectional view of the stainless stroke detection piston rod of the coating of the utility model.
Among the figure: 1. carbon steel piston rod body, 2. Stainless Steel Tube.
Embodiment
Combine accompanying drawing that the utility model is done further detailed explanation now.These accompanying drawings are the schematic representation of simplification, the basic structure of the utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
Fig. 1 Fig. 2 is the most preferred embodiment of the stainless stroke detection piston rod of the coating of the utility model; Comprise carbon steel piston rod body 1 and be coated on the Stainless Steel Tube 2 on the carbon steel piston rod body 1 through cold drawing; The outer surface of carbon steel piston rod body 1 has annular groove or the thread groove that is used for stroke detection, and the pipe thickness of Stainless Steel Tube 2 is 1.0～2.5mm.Stainless Steel Tube 2 outer surfaces have chromium coating.
A kind of hydraulic jack that adopts the stainless stroke detection piston rod of above-mentioned coating.
Introduce the utility model below in conjunction with concrete production, base material is selected 45 steel for use, and the high tenacity piston rod is selected high strength alloy steels such as 40Cr, 40CrMo for use; After turning; Surface Machining is used for the annular groove or the thread groove of stroke detection, and surface hardening is handled, and hardness reaches HRC45～50; Cover material requires to select for use the stainless steel trade mark according to corrosive environment, like the accurate Stainless Steel Tube that S30408, S30488 or higher trade mark solution annealing are handled, pipe thickness 1.0～2.5mm; Base material and cover material adopt assembling movingly, come fixed gap according to length, diameter, are guaranteeing to select little gap, general 0.15～0.20mm under the good situation of assembling; Select carbide die for use; On the accurate drawbench of high-precision hydraulic, be drawn to required size step by step, controllable size built in-0.05～-0.08mm between, surface finishment reaches Ra0.8～1.6; Because after repeatedly cold-drawn draws; The stainless steel pipe surface flow harden, hardness can reach HRC >=40, and the chromium coating that can be as required adds 0.02～0.03mm again at the stainless steel outer surface polishes again.
With above-mentioned desirable embodiment according to the utility model is enlightenment, and through above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this model utility technological thought.The technical scope of this model utility is not limited to the content on the specification, must confirm its technical scope according to the claim scope.
Claims (3)
1. one kind coats stainless stroke detection piston rod; It is characterized in that: comprise carbon steel piston rod body (1) and be coated on the Stainless Steel Tube (2) on the carbon steel piston rod body (1) through cold drawing; The outer surface of described carbon steel piston rod body (1) has annular groove or the thread groove that is used for stroke detection, and the pipe thickness of described Stainless Steel Tube (2) is 1.0～2.5mm.
2. the stainless stroke detection piston rod of coating as claimed in claim 1 is characterized in that: described Stainless Steel Tube (2) outer surface has chromium coating.
3. hydraulic jack that adopts the stainless stroke detection piston rod of above-mentioned coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204696767U CN202348834U (en) | 2011-11-23 | 2011-11-23 | Stainless steel-coated stroke detection piston rod and hydraulic cylinder with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204696767U CN202348834U (en) | 2011-11-23 | 2011-11-23 | Stainless steel-coated stroke detection piston rod and hydraulic cylinder with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202348834U true CN202348834U (en) | 2012-07-25 |
Family
ID=46537841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204696767U Expired - Fee Related CN202348834U (en) | 2011-11-23 | 2011-11-23 | Stainless steel-coated stroke detection piston rod and hydraulic cylinder with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202348834U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671350A (en) * | 2012-09-05 | 2014-03-26 | 江苏晨光盛得液压设备有限公司 | Electromagnetic type stroke measurement hydraulic hoist oil cylinder piston rod with alloy powder laser cladding surface |
| CN106895147A (en) * | 2015-12-19 | 2017-06-27 | 平顶山平煤机煤矿机械装备有限公司 | A kind of piston rod and its manufacture method |
-
2011
- 2011-11-23 CN CN2011204696767U patent/CN202348834U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671350A (en) * | 2012-09-05 | 2014-03-26 | 江苏晨光盛得液压设备有限公司 | Electromagnetic type stroke measurement hydraulic hoist oil cylinder piston rod with alloy powder laser cladding surface |
| CN106895147A (en) * | 2015-12-19 | 2017-06-27 | 平顶山平煤机煤矿机械装备有限公司 | A kind of piston rod and its manufacture method |
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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: 20120725 Termination date: 20141123 |
|
| EXPY | Termination of patent right or utility model |