CN203067409U - Hydraulic cylinder rod sealing device - Google Patents

Hydraulic cylinder rod sealing device Download PDF

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Publication number
CN203067409U
CN203067409U CN 201320040658 CN201320040658U CN203067409U CN 203067409 U CN203067409 U CN 203067409U CN 201320040658 CN201320040658 CN 201320040658 CN 201320040658 U CN201320040658 U CN 201320040658U CN 203067409 U CN203067409 U CN 203067409U
Authority
CN
China
Prior art keywords
piston
cylinder
hydraulic cylinder
rod
sealing device
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
Application number
CN 201320040658
Other languages
Chinese (zh)
Inventor
黄立顺
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TIANJIN DONGCHENG WEIYE HYDRAULIC EQUIPMENT CO Ltd
Original Assignee
TIANJIN DONGCHENG WEIYE HYDRAULIC EQUIPMENT CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by TIANJIN DONGCHENG WEIYE HYDRAULIC EQUIPMENT CO Ltd filed Critical TIANJIN DONGCHENG WEIYE HYDRAULIC EQUIPMENT CO Ltd
Priority to CN 201320040658 priority Critical patent/CN203067409U/en
Application granted granted Critical
Publication of CN203067409U publication Critical patent/CN203067409U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a hydraulic cylinder rod sealing device and relates to a piston rod. The hydraulic cylinder rod sealing device comprises a cylinder barrel, pistons, the piston rod, cylinder covers, an oil inlet, piston sealing pieces, flexible combined sealing pieces and an oil outlet, wherein the piston rod is matched with the pistons through the flexible combined sealing pieces; the pistons are matched with the cylinder barrel through the piston sealing pieces; the cylinder covers are arranged at the two ends of the cylinder barrel; and the oil inlet and the oil outlet are formed in the cylinder covers respectively. The hydraulic cylinder rod sealing device is simple in structure and stable, safe and reliable to use; the leakage rate is reduced; the efficiency of the piston rod is improved; and the service life of an oil cylinder is also greatly prolonged.

Description

The hydraulic cylinder rod seal arrangement
Technical field
The utility model relates to a kind of piston rod, be specifically related to a kind of hydraulic cylinder rod seal arrangement.
Background technique
Oil hydraulic cylinder is the main executive component in the hydraulic system, and oil hydraulic cylinder leakage of oil meeting has a strong impact on stationarity, reliability and the working life of equipment.Piston rod in the oil hydraulic cylinder and the outer surface of piston that causes after piston is connected and the disalignment of cylinder barrel internal surface, thus cause non-homogeneous friction, feasible leakage seriously, the inefficiency of oil cylinder greatly reduces its working life.
The model utility content
At the deficiency that exists on the prior art, the utility model purpose is to be to provide a kind of hydraulic cylinder rod seal arrangement, and is simple in structure, uses steadily safe and reliablely, reduced leakage, improves the efficient of piston cylinder, also increased the working life of oil cylinder greatly.
To achieve these goals, the utility model is to realize by the following technical solutions: the hydraulic cylinder rod seal arrangement, comprise cylinder barrel, piston, piston rod, cylinder cap, filler opening, piston seal, flexible combination Sealing and oil outlet, piston rod matches with piston by the flexible combination Sealing, piston matches with cylinder barrel by piston seal, and the cylinder barrel two ends are provided with cylinder cap, are respectively arranged with filler opening and oil outlet on the cylinder cap.
As preferably, described flexible combination Sealing is a plurality of O RunddichtringOs.
As preferably, described flexible combination Sealing is graphite rubber mix material seal ring.
The utility model is simple in structure, uses steadily safe and reliablely, has reduced leakage, improves the efficient of piston cylinder, has also increased the working life of oil cylinder greatly.
Description of drawings
Describe the utility model in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is structural representation of the present utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with embodiment, further set forth the utility model.
With reference to Fig. 1, this embodiment is by the following technical solutions: the hydraulic cylinder rod seal arrangement, comprise cylinder barrel 1, piston 2, piston rod 3, cylinder cap 4, filler opening 5, piston seal 6, flexible combination Sealing 7 and oil outlet 8, piston rod 3 matches with piston 2 by flexible combination Sealing 7, piston 2 matches with cylinder barrel 1 by piston seal 6, and cylinder barrel 1 two ends are provided with cylinder cap 4, are respectively arranged with filler opening 5 and oil outlet 8 on the cylinder cap 4.
It should be noted that described flexible combination Sealing 7 is a plurality of O RunddichtringOs.
In addition, described flexible combination Sealing 7 is graphite rubber mix material seal ring.
The flexible combination Sealing 7 of this embodiment seals between piston and piston rod; And by elastic compression, reduce to make oil hydraulic cylinder have excellent sealing performance because piston rod is connected later error to the influence of outer surface of piston and cylinder barrel internal surface coaxality with piston.
This embodiment is simple in structure, uses steadily safe and reliablely, has reduced leakage, improves the efficient of piston cylinder, has also increased the working life of oil cylinder greatly.
More than show and described basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims (3)

1. hydraulic cylinder rod seal arrangement, it is characterized in that, comprise cylinder barrel (1), piston (2), piston rod (3), cylinder cap (4), filler opening (5), piston seal (6), flexible combination Sealing (7) and oil outlet (8), piston rod (3) matches with piston (2) by flexible combination Sealing (7), piston (2) matches with cylinder barrel (1) by piston seal (6), and cylinder barrel (1) two ends are provided with cylinder cap (4), are respectively arranged with filler opening (5) and oil outlet (8) on the cylinder cap (4).
2. hydraulic cylinder rod seal arrangement according to claim 1 is characterized in that, described flexible combination Sealing (7) is a plurality of O RunddichtringOs.
3. hydraulic cylinder rod seal arrangement according to claim 1 is characterized in that, described flexible combination Sealing (7) is graphite rubber mix material seal ring.
CN 201320040658 2013-01-25 2013-01-25 Hydraulic cylinder rod sealing device Expired - Fee Related CN203067409U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320040658 CN203067409U (en) 2013-01-25 2013-01-25 Hydraulic cylinder rod sealing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320040658 CN203067409U (en) 2013-01-25 2013-01-25 Hydraulic cylinder rod sealing device

Publications (1)

Publication Number Publication Date
CN203067409U true CN203067409U (en) 2013-07-17

Family

ID=48766199

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320040658 Expired - Fee Related CN203067409U (en) 2013-01-25 2013-01-25 Hydraulic cylinder rod sealing device

Country Status (1)

Country Link
CN (1) CN203067409U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104747529A (en) * 2014-07-29 2015-07-01 李国� Novel hydraulic cylinder
CN104870835A (en) * 2013-12-19 2015-08-26 株式会社小松制作所 Cylinder device
CN112268033A (en) * 2020-09-21 2021-01-26 蚌埠隆华压铸机有限公司 Internal leakage prevention device for hydraulic system of die casting machine
CN112983921A (en) * 2021-01-05 2021-06-18 威海中颐液压科技股份有限公司 Spiral hydraulic swing motor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104870835A (en) * 2013-12-19 2015-08-26 株式会社小松制作所 Cylinder device
CN104747529A (en) * 2014-07-29 2015-07-01 李国� Novel hydraulic cylinder
CN112268033A (en) * 2020-09-21 2021-01-26 蚌埠隆华压铸机有限公司 Internal leakage prevention device for hydraulic system of die casting machine
CN112983921A (en) * 2021-01-05 2021-06-18 威海中颐液压科技股份有限公司 Spiral hydraulic swing motor

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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: 20130717

Termination date: 20150125

EXPY Termination of patent right or utility model