CN102937182A - Hydraulic cylinder piston sealing structure of punch hydraulic system - Google Patents
Hydraulic cylinder piston sealing structure of punch hydraulic system Download PDFInfo
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- CN102937182A CN102937182A CN2012104673798A CN201210467379A CN102937182A CN 102937182 A CN102937182 A CN 102937182A CN 2012104673798 A CN2012104673798 A CN 2012104673798A CN 201210467379 A CN201210467379 A CN 201210467379A CN 102937182 A CN102937182 A CN 102937182A
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- cylinder piston
- sealing ring
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Abstract
The invention discloses a hydraulic cylinder piston sealing structure of a punch hydraulic system. A sealing component of a hydraulic cylinder piston is of a combined hole-shaped sealing ring structure and consists of two sealing rings, two retainer rings and two guide rings. The two retainer rings are respectively arranged on the upper side and the lower side of the main sealing ring to assist in enhancing sealing performance, and the two guide rings are respectively sleeved on the top of the main sealing ring and the bottom of the auxiliary sealing ring. The highest work pressure of the sealing rings is set to be 30Mpa, the work temperature thereof ranges from -50DEG C to 500 DEG C, and the running speed thereof is 0.5m/s. The hydraulic cylinder piston sealing structure has the advantages that improvement of mechanical performance is facilitated, abrasion is avoided, the system is stable in running, easy to realize speed regulation and controllable in travel, noises are reduced, punch frequency is increased, movement precision of machines is increased, the service life of the machines is prolonged, requirements for transport, installation and adjustment are met, operational controllability can be improved, and labor intensity can be reduced.
Description
Technical field
The present invention relates to the hydraulics field, relate in particular to a kind of sealing piston of hydraulic cylinder structure of punch press hydraulic system.
Background technique
Hydraulic system has that power is large, working pressure and the flow adjustability is good, heat can be brought back the advantages such as fuel tank, adopt hydraulic system to produce more power than other devices, under equal power, the volume of hydraulic pressure installation is little, lightweight, specific power large, compact structure.Development along with modern automobile industry, electronic technology and national defense industry, market is increasing to the demand of punching equipment especially high speed stamping equipment, stamping technology is one of stress metal processing method that is widely used at present, so the advanced increasing stamping technology that adopts of country of industry replaces cutting technology and other processing techniquies.Advanced punching equipment is the precondition of stamping technology development, current its stamping system of punching equipment mainly contains two kinds of mechanical type and hydraulic types, mechanical type mainly contains crank press, it will rotatablely move by slidercrank mechanism and change to-and-fro motion into, and slidercrank mechanism mainly is comprised of parts such as bent axle, connecting rod and slide blocks.But the hydraulic system assembly of existing this product exists a lot of problems from operating method, working method, numerous and diverse different amount such as structure, and this causes work poor efficiency, heavier, the high expensive of weight of equipment.
Summary of the invention
The purpose of this invention is to provide and a kind ofly be conducive to improve mechanical efficiency, can make system motion steadily easily speed governing and stroke controlled, avoid wearing and tearing, being suitable for multiple stamping process, reducing noise, punching press frequency and improve, possess the auxiliary sealing piston of hydraulic cylinder structure that improves the punch press hydraulic system of equipment operation ability, to solve many deficiencies of prior art.
Purpose of the present invention is come specific implementation by the following technical programs:
A kind of sealing piston of hydraulic cylinder structure of punch press hydraulic system mainly is comprised of following:
At first, the black box of this hydraulic cylinder piston is shaped as combined type pass ring structure, is comprised of two seal rings, two baffle rings and two guide rings;
⑵ be positioned at main seal ring and a baffle ring be set respectively in order to the auxiliary sealability that strengthens in both sides up and down, and a guide ring is arranged at this main seal ring top and another secondary seal ring bottom respectively cover;
⑶ this seal ring Maximum operating pressure is set to 30MPa, temperature-50 ℃-500 ℃, movement velocity 0.5m/s.
The beneficial effect of the sealing piston of hydraulic cylinder structure of punch press hydraulic system of the present invention is: be conducive to improve mechanical property, avoid wearing and tearing, steadily easily speed governing and stroke are controlled can to make system motion, reducing noise, punching press frequency improve, be conducive to improve the machine movement precision, can increase the service life; Simultaneously, be conducive to adapt to the demand of transportation, installation, accent frame, can improve the operation controllability, reduce labor intensity.
Embodiment
The sealing piston of hydraulic cylinder structure of the described punch press hydraulic system of the embodiment of the invention, its key step comprises:
At first, the black box of this hydraulic cylinder piston is shaped as combined type pass ring structure, is comprised of two seal rings, two baffle rings and two guide rings;
⑵ be positioned at main seal ring and a baffle ring be set respectively in order to the auxiliary sealability that strengthens in both sides up and down, and a guide ring is arranged at this main seal ring top and another secondary seal ring bottom respectively cover;
⑶ this seal ring Maximum operating pressure is set to 30MPa, temperature-50 ℃-500 ℃, movement velocity 0.5m/s.
Claims (1)
1. the sealing piston of hydraulic cylinder structure of a punch press hydraulic system is characterized in that, mainly is comprised of following:
At first, the black box of this hydraulic cylinder piston is shaped as combined type pass ring structure, is comprised of two seal rings, two baffle rings and two guide rings;
⑵ be positioned at main seal ring and a baffle ring be set respectively in order to the auxiliary sealability that strengthens in both sides up and down, and a guide ring is arranged at this main seal ring top and another secondary seal ring bottom respectively cover;
⑶ this seal ring Maximum operating pressure is set to 30MPa, temperature-50 ℃-500 ℃, movement velocity 0.5m/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104673798A CN102937182A (en) | 2012-11-19 | 2012-11-19 | Hydraulic cylinder piston sealing structure of punch hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104673798A CN102937182A (en) | 2012-11-19 | 2012-11-19 | Hydraulic cylinder piston sealing structure of punch hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102937182A true CN102937182A (en) | 2013-02-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104673798A Pending CN102937182A (en) | 2012-11-19 | 2012-11-19 | Hydraulic cylinder piston sealing structure of punch hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102937182A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2526349A1 (en) * | 1975-06-12 | 1976-12-23 | Walter Hunger | Plastic piston guide ring - has U section seat face against piston transmitting forces directly onto seal |
| US4003297A (en) * | 1975-03-28 | 1977-01-18 | Du-Al Manufacturing Company | Hydraulic cylinder |
| EP0048707A2 (en) * | 1980-09-18 | 1982-03-31 | Xaver Rädler | Device for cleaning tubes |
| DE3533797A1 (en) * | 1985-09-21 | 1987-04-02 | Walter Hunger | SEALING DEVICE |
| CN2474811Y (en) * | 1999-12-20 | 2002-01-30 | 邹城市中煤精工科技开发有限责任公司 | Hydraulic cylinder composite sealing device |
| CN201093064Y (en) * | 2007-08-03 | 2008-07-30 | 王金平 | Piston rod sealing element |
| CN102269271A (en) * | 2010-06-03 | 2011-12-07 | 乔言海 | Sealing structure of hydraulic cylinder |
| CN102367872A (en) * | 2011-10-26 | 2012-03-07 | 太仓市明宇密封件有限公司 | Combined seal ring for GDKK hole |
-
2012
- 2012-11-19 CN CN2012104673798A patent/CN102937182A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4003297A (en) * | 1975-03-28 | 1977-01-18 | Du-Al Manufacturing Company | Hydraulic cylinder |
| DE2526349A1 (en) * | 1975-06-12 | 1976-12-23 | Walter Hunger | Plastic piston guide ring - has U section seat face against piston transmitting forces directly onto seal |
| EP0048707A2 (en) * | 1980-09-18 | 1982-03-31 | Xaver Rädler | Device for cleaning tubes |
| DE3533797A1 (en) * | 1985-09-21 | 1987-04-02 | Walter Hunger | SEALING DEVICE |
| CN2474811Y (en) * | 1999-12-20 | 2002-01-30 | 邹城市中煤精工科技开发有限责任公司 | Hydraulic cylinder composite sealing device |
| CN201093064Y (en) * | 2007-08-03 | 2008-07-30 | 王金平 | Piston rod sealing element |
| CN102269271A (en) * | 2010-06-03 | 2011-12-07 | 乔言海 | Sealing structure of hydraulic cylinder |
| CN102367872A (en) * | 2011-10-26 | 2012-03-07 | 太仓市明宇密封件有限公司 | Combined seal ring for GDKK hole |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130220 |