CN201507644U - Hydraulic cylinder with high performance, high reliability, and long service life - Google Patents
Hydraulic cylinder with high performance, high reliability, and long service life Download PDFInfo
- Publication number
- CN201507644U CN201507644U CN2009202369000U CN200920236900U CN201507644U CN 201507644 U CN201507644 U CN 201507644U CN 2009202369000 U CN2009202369000 U CN 2009202369000U CN 200920236900 U CN200920236900 U CN 200920236900U CN 201507644 U CN201507644 U CN 201507644U
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- China
- Prior art keywords
- hydraulic cylinder
- high reliability
- piston rod
- cylinder barrel
- service life
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- Expired - Fee Related
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Abstract
The utility model relates to a hydraulic cylinder with high performance, high reliability, and long service life. The hydraulic cylinder comprises a cylinder barrel, and a piston rod and a guide sleeve connected with a piston, wherein a nickel coating adopting the ENP chemical nickel-plating fabrication processing is arranged on the surface of inner bore of the cylinder barrel, the piston rod takes the 45 steel rib QPQ salt bath compound processing technique as the surface heat treatment, the inner bore of the cylinder barrel adopts the ENP chemical nickel plating technology, and the guiding sleeve adopts a pro-environment profile steel base self-lubricating bearing. The hydraulic cylinder has the advantages of strong corrosion-resisting property, low manufacturing cost, environmental protection, high performance, high reliability, and long service life.
Description
[technical field]
The utility model belongs to the light mechanical and electrical integration field, relates to a kind of high-performance, high reliability and long-life hydraulic cylinder.
[background technique]
Oil hydraulic cylinder is an executive component important in the hydraulic system, is used to carry out to-and-fro motion, is widely used in metallurgical equipment, harbour machinery, injection machine, rubber manufacturing machinery, Coal Mechanical, engineering machinery.The oil hydraulic cylinder critical piece has cylinder barrel, piston, piston rod, guide sleeve and buffering ring, piston rod is the vitals of oil hydraulic cylinder, the existing piston bar adopts 45 steel usually, in order to improve wear resistance and anti-corrosion, present domestic tratitional technology is in piston rod surface hard chromium plating and polishing, its thickness of coating 0.03-0.05mm, its surface roughness Ra is 0.4-0.2 μ m.Cylinder barrel also is the vitals of oil hydraulic cylinder, and it adopts 45 steel pipes usually, interior aperture roll extrusion or honing, and its surface roughness Ra is 0.4-0.2 μ m; Drag the cylinder barrel of pump, metallurgical machinery oil hydraulic cylinder all to adopt the bore area Hard Chromium Plating Technology in a large number at Coal Mechanical, cement; The fatal shortcoming of above-mentioned Hard Chromium Plating Technology is: chromate waste water and waste gas are seriously carcinogenic, belong to national class control effulent, very harmful to environment and direct labor; The coating space is many, and chrome plating belongs to cathodic electrodeposition coating to steel substrate, and anticorrosive property has certain narrow limitation.The hydraulic cylinder piston rod in the harbour machinery even need select for use stainless steel material behind hard chromium plating, could satisfy certain life time more for example; Uneven coating is even, the porosity ratio height, and easy peeling, the chromium plating expense is also than higher.Guide sleeve is supported the piston rod radial location, also is the important wear part of oil hydraulic cylinder axially reciprocating.It adopts copper, spheroidal graphite cast iron, supporting strap usually, and the shortcoming of these guide sleeves is to possess good supportive and lubricating and wear-resisting simultaneously.
[model utility content]
In order to overcome the above-mentioned shortcoming of prior art, the utility model provides that a kind of corrosion-resistant property is strong, low cost of manufacture and help environmental protection, has the oil hydraulic cylinder of high-performance, high reliability and long lifetime advantage.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of high-performance, high reliability and long-life hydraulic cylinder, cylinder barrel, the piston rod that links to each other with piston and guide sleeve are arranged, the cylinder barrel bore area is provided with the nickeling layer that adopts the ENP nickel chemical plating technology to handle, piston rod surface is provided with the surface heat processing layer of employing after QPQ salt bath composite treatment technology is done surperficial heat treatment, and guide sleeve is an environment protection type base steel self oiling bearing.
The beneficial effects of the utility model are: piston rod adopts 45 steel to do surperficial heat treatment through QPQ salt bath composite treatment technology, the cylinder barrel endoporus adopts ENP nickel chemical plating technology technology, guide sleeve adopts environment protection type base steel self oiling bearing, corrosion-resistant property is strong, low cost of manufacture and help environmental protection, has high-performance, high reliability and long-life advantage.
[description of drawings]
Fig. 1 is a structural representation of the present utility model;
Among the figure: 1-cylinder barrel, 2-piston, 3-piston rod, 4-guide sleeve, 5-buffering ring.
[embodiment]
Below in conjunction with drawings and Examples the utility model is further specified:
Referring to Fig. 1, a kind of high-performance, high reliability and long-life hydraulic cylinder, critical piece has cylinder barrel 1, piston 2, piston rod 3, guide sleeve 4 and buffering ring 5, wherein cylinder barrel 1 is cancelled Hard Chromium Plating Technology, adopt ENP nickel chemical plating technology technology at former operating mode cylinder barrel 1 endoporus, make its cylinder barrel 1 bore area be provided with the nickeling layer that adopts the ENP nickel chemical plating technology to handle; Piston rod 3 cancellation Hard Chromium Plating Technology adopt 45 steel to do surperficial heat treatment through QPQ salt bath composite treatment technology, make piston rod 3 surfaces be provided with the surface heat processing layer of employing after QPQ salt bath composite treatment technology is done surperficial heat treatment; Guide sleeve 4 adopts environment protection type base steel self oiling bearing.
The QPQ treatment process of piston rod 3 is: blanking processing, and through the heat treatment of QPQ salt bath combining surface, polishing at last makes finished product; 45 steel pistons bars 3 are after QPQ handles, and the corrosion stability in atmosphere and salt spray test is higher more than 35 times than hard chromium plating, and is higher 40 times than 1Cr 13 stainless steels, even also higher 5 times than 1Cr18Ni9Ti Austenitic Stainless Steel; Strict rolling and sliding wear testing illustrate 45 steel after QPQ salt bath compounding, and it is high more than 2 times that its wear resistance is compared hard chromium plating; 45 steel its fatigue strength after QPQ handles improves 40%, and 45 modified steel are the highest to improve 100%.
The ENP treatment process of cylinder barrel 1 is: first blanking processing, and through the ENP chemical nickel plating, polishing at last makes finished product; 45 steel cylinder barrels, 1 endoporus chemical plating Mi-P alloy coating is compared with hard chromium plating has that coating is even, porosity ratio is low, combination force is good, resistance to corrosion is good, pollution is light, waste water is easily handled and low cost and other advantages, be heated to simultaneously that coating surface hardness is 980-1100HV after 400 ℃ of heat treatments, be equivalent to or be better than chromed hardened wear resistance so its also has simultaneously.
Adopt environment protection type base steel self oiling bearing guide sleeve 4 its be matrix with the high-quality low carbon steel plate, intermediate sintering Oilite bronze layer, at the mixture of surface rolling based on PTFE, it can provide performances such as selflubricating preferably, wear-resistant, low friction, given full play to the advantage of metal and multielement polymer, made its supportive and lubricating and wear-resisting overcome copper, spheroidal graphite cast iron, supporting strap deficiency simultaneously as guide sleeve.Select the quality material Sealing simultaneously for use.
Claims (3)
1. a high-performance, high reliability and long-life hydraulic cylinder have cylinder barrel, the piston rod that links to each other with piston and guide sleeve, it is characterized in that: described cylinder barrel bore area is provided with the nickeling layer that adopts the ENP nickel chemical plating technology to handle.
2. high-performance as claimed in claim 1, high reliability and long-life hydraulic cylinder is characterized in that: described piston rod surface is provided with the surface heat processing layer of employing after QPQ salt bath composite treatment technology is done surperficial heat treatment.
3. high-performance as claimed in claim 1, high reliability and long-life hydraulic cylinder is characterized in that: described guide sleeve is an environment protection type base steel self oiling bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202369000U CN201507644U (en) | 2009-09-29 | 2009-09-29 | Hydraulic cylinder with high performance, high reliability, and long service life |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202369000U CN201507644U (en) | 2009-09-29 | 2009-09-29 | Hydraulic cylinder with high performance, high reliability, and long service life |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201507644U true CN201507644U (en) | 2010-06-16 |
Family
ID=42468771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202369000U Expired - Fee Related CN201507644U (en) | 2009-09-29 | 2009-09-29 | Hydraulic cylinder with high performance, high reliability, and long service life |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201507644U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103014603A (en) * | 2012-12-09 | 2013-04-03 | 常州大学 | Rare earth oxide modified QPQ (Quench-P0lish-Quench) technology and application thereof on water-pressure transmission element |
| CN103438759A (en) * | 2013-08-06 | 2013-12-11 | 重庆建设工业(集团)有限责任公司 | Gun tube surface treatment process |
| CN103469214A (en) * | 2013-08-30 | 2013-12-25 | 浙江荣鹏气动工具有限公司 | Surface treatment method of plunger rod of pneumatic airless spray machine |
| CN103629386A (en) * | 2012-08-27 | 2014-03-12 | 江苏神通阀门股份有限公司 | Small-caliber high-temperature wear-resistant ball valve |
| CN104373415A (en) * | 2014-10-27 | 2015-02-25 | 湖州环丰机械有限公司 | Hydraulic oil cylinder |
| EP2971589A4 (en) * | 2013-03-15 | 2016-06-08 | United Technologies Corp | Turbine engine face seal arrangement including anti-rotation features |
-
2009
- 2009-09-29 CN CN2009202369000U patent/CN201507644U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103629386A (en) * | 2012-08-27 | 2014-03-12 | 江苏神通阀门股份有限公司 | Small-caliber high-temperature wear-resistant ball valve |
| CN103014603A (en) * | 2012-12-09 | 2013-04-03 | 常州大学 | Rare earth oxide modified QPQ (Quench-P0lish-Quench) technology and application thereof on water-pressure transmission element |
| CN103014603B (en) * | 2012-12-09 | 2016-04-20 | 常州大学 | A kind of rare-earth oxide modified QPQ technology and the application on water hydraulic system element thereof |
| EP2971589A4 (en) * | 2013-03-15 | 2016-06-08 | United Technologies Corp | Turbine engine face seal arrangement including anti-rotation features |
| US10024241B2 (en) | 2013-03-15 | 2018-07-17 | United Technologies Corporation | Turbine engine face seal arrangement including anti-rotation features |
| CN103438759A (en) * | 2013-08-06 | 2013-12-11 | 重庆建设工业(集团)有限责任公司 | Gun tube surface treatment process |
| CN103438759B (en) * | 2013-08-06 | 2014-12-31 | 重庆建设工业(集团)有限责任公司 | Gun tube surface treatment process |
| CN103469214A (en) * | 2013-08-30 | 2013-12-25 | 浙江荣鹏气动工具有限公司 | Surface treatment method of plunger rod of pneumatic airless spray machine |
| CN104373415A (en) * | 2014-10-27 | 2015-02-25 | 湖州环丰机械有限公司 | Hydraulic oil cylinder |
| CN104373415B (en) * | 2014-10-27 | 2016-09-07 | 湖州环丰机械有限公司 | A kind of hydraulic jack |
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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: 20100616 Termination date: 20140929 |
|
| EXPY | Termination of patent right or utility model |