CN203926742U - A kind of hydraulic cylinder piston - Google Patents
A kind of hydraulic cylinder piston Download PDFInfo
- 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
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- Actuator (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
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
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).
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) |
-
2014
- 2014-06-21 CN CN201420332279.9U patent/CN203926742U/en not_active Expired - Fee Related
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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 |