CN203926742U - A kind of hydraulic cylinder piston - Google Patents

A kind of hydraulic cylinder piston Download PDF

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Publication number
CN203926742U
CN203926742U CN201420332279.9U CN201420332279U CN203926742U CN 203926742 U CN203926742 U CN 203926742U CN 201420332279 U CN201420332279 U CN 201420332279U CN 203926742 U CN203926742 U CN 203926742U
Authority
CN
China
Prior art keywords
piston
seal ring
piston rod
gland
hydraulic 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
Application number
CN201420332279.9U
Other languages
Chinese (zh)
Inventor
曾桓海
杨苑
何伟光
傅汉雄
李胜运
黄新莲
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.)
Mei County Yanxuanyao Cement Co Ltd
Original Assignee
Mei County Yanxuanyao Cement 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 Mei County Yanxuanyao Cement Co Ltd filed Critical Mei County Yanxuanyao Cement Co Ltd
Priority to CN201420332279.9U priority Critical patent/CN203926742U/en
Application granted granted Critical
Publication of CN203926742U publication Critical patent/CN203926742U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a kind of hydraulic cylinder piston, comprise the piston assembly being formed by piston rod and piston, described piston and piston rod at right angle setting, its center line is on same straight line, described piston one end is along its length provided with gland, also comprises screw thread, the first seal ring, the second seal ring, and described piston rod spins mutually by screw thread and piston, gland, and between piston and piston rod, be provided with the first seal ring, between gland and piston rod, be provided with the second seal ring.The utility model is simple in structure, and good sealing effect is easy to use, has greatly improved working efficiency and the working life of oil cylinder.

Description

A kind of hydraulic cylinder piston
Technical field
the utility model relates to oil hydraulic cylinder technical field, relates in particular to a kind of for the piston on oil hydraulic cylinder.
Background technique
oil hydraulic cylinder by hydraulic energy change mechanical energy into, the do straight reciprocating motion hydraulic actuator of (or oscillating motion).Its simple in structure, reliable operation.While realizing to-and-fro motion with it, can remove speed reducer from, and there is no drive gap, motion steadily, is therefore used widely in the hydraulic system of various machineries.The pressure reduction on oil hydraulic cylinder ouput force and piston effective area and both sides thereof is directly proportional; Oil hydraulic cylinder is comprised of cylinder barrel and cylinder cap, piston and piston rod, seal arrangement, damping device and venting gas appliance substantially.
between the piston rod of oil hydraulic cylinder and piston, the general Placements such as gland, bolt that adopt are connected, the sealing of these Placements all can not be guaranteed thoroughly, after long in use, easily leak, greatly reduce its working efficiency.
Model utility content
the purpose of this utility model is in order to overcome the deficiencies in the prior art, and a kind of hydraulic cylinder piston is provided, in order to improve its sealing effect.
the utility model is to be achieved through the following technical solutions:
a kind of hydraulic cylinder piston, comprise the piston assembly being formed by piston rod and piston, described piston and piston rod at right angle setting, its center line is on same straight line, described piston one end is along its length provided with gland, also comprises screw thread, the first seal ring, the second seal ring, and described piston rod spins mutually by screw thread and piston, gland, and between piston and piston rod, be provided with the first seal ring, between gland and piston rod, be provided with the second seal ring.
as optimal technical scheme of the present utility model, described the first seal ring and the second seal ring all adopt polyurethane material to make.
as optimal technical scheme of the present utility model, described the first seal ring and the second seal ring are " Y " RunddichtringO.
as optimal technical scheme of the present utility model, described gland and piston are one-body molded.
compared with prior art, the beneficial effects of the utility model are: the utility model is simple in structure, and good sealing effect is easy to use, have greatly improved working efficiency and the working life of oil cylinder.
Accompanying drawing explanation
fig. 1 is structural representation of the present utility model.
in figure: 1-piston rod; 2-piston; 3-gland; 4-screw thread; 5-the first seal ring; 6-the second seal ring.
Embodiment
in order to make the purpose of this utility model, technological scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
refer to Fig. 1, Fig. 1 is structural representation of the present utility model.
described a kind of hydraulic cylinder piston, comprise the piston assembly being formed by piston rod 1 and piston 2, described piston 2 and piston rod 1 at right angle setting, its center line is on same straight line, described piston 2 one end is along its length provided with gland 3, and described gland 3 is one-body molded with piston 2.This hydraulic cylinder piston also comprises screw thread 4, the first seal ring 5, the second seal ring 6, described piston rod 1 spins mutually by screw thread 4 and piston 2, gland 3, and between piston 2 and piston rod 1, be provided with the first seal ring 5, between gland 3 and piston rod 1, be provided with the second seal ring 6.
described the first seal ring 5 and the second seal ring 6 all adopt polyurethane material to make, and the seal ring of polyurethane material has high tensile strength, good elasticity, good weatherability, and oil resistance is good, resistance to biological aging.Described the first seal ring 5 and the second seal ring 6 are " Y " RunddichtringO.
the utility model is simple in structure, and good sealing effect is easy to use, has greatly improved working efficiency and the working life of oil cylinder.
the foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.

Claims (4)

1. a hydraulic cylinder piston, comprise the piston assembly being formed by piston rod (1) and piston (2), described piston (2) and piston rod (1) at right angle setting, its center line is on same straight line, it is characterized in that: described piston (2) one end is along its length provided with gland (3), also comprise screw thread (4), the first seal ring (5), the second seal ring (6), described piston rod (1) is by screw thread (4) and piston (2), gland (3) spins mutually, and be provided with the first seal ring (5) between piston (2) and piston rod (1), between gland (3) and piston rod (1), be provided with the second seal ring (6).
2. a kind of hydraulic cylinder piston according to claim 1, is characterized in that: described the first seal ring (5) and the second seal ring (6) all adopt polyurethane material to make.
3. a kind of hydraulic cylinder piston according to claim 2, is characterized in that: described the first seal ring (5) and the second seal ring (6) are " Y " RunddichtringO.
4. a kind of hydraulic cylinder piston according to claim 1, is characterized in that: described gland (3) is one-body molded with piston (2).
CN201420332279.9U 2014-06-21 2014-06-21 A kind of hydraulic cylinder piston Expired - Fee Related CN203926742U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420332279.9U CN203926742U (en) 2014-06-21 2014-06-21 A kind of hydraulic cylinder piston

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420332279.9U CN203926742U (en) 2014-06-21 2014-06-21 A kind of hydraulic cylinder piston

Publications (1)

Publication Number Publication Date
CN203926742U true CN203926742U (en) 2014-11-05

Family

ID=51822553

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420332279.9U Expired - Fee Related CN203926742U (en) 2014-06-21 2014-06-21 A kind of hydraulic cylinder piston

Country Status (1)

Country Link
CN (1) CN203926742U (en)

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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: 20141105

Termination date: 20160621

CF01 Termination of patent right due to non-payment of annual fee