CN214837473U - Sealing assembly of pure water medium hydraulic cylinder and hydraulic cylinder - Google Patents
Sealing assembly of pure water medium hydraulic cylinder and hydraulic cylinder Download PDFInfo
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- CN214837473U CN214837473U CN202023288037.9U CN202023288037U CN214837473U CN 214837473 U CN214837473 U CN 214837473U CN 202023288037 U CN202023288037 U CN 202023288037U CN 214837473 U CN214837473 U CN 214837473U
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- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 11
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Abstract
The embodiment of the utility model discloses seal assembly and pneumatic cylinder of pure water medium pneumatic cylinder, wherein, seal assembly sets up on the pneumatic cylinder, add the pure water medium in the pneumatic cylinder, the pure water medium does not contain any toxin, even the condition that the pure water medium appears leaking also does not pollute the environment, the difficult rotten life of pure water medium is longer, in addition, the macromolecular material of interpolation lubricating material is chooseed for use to these seal assembly's of sealed effect for guaranteeing the pure water medium, make these seal assembly can be better sealed protection pure water medium simultaneously, guarantee seal assembly's lubricated effect, reduce frictional resistance, service life is prolonged, the frequency of maintenance is reduced.
Description
Technical Field
The utility model belongs to the technical field of the pneumatic cylinder, especially, relate to a seal assembly and pneumatic cylinder of pure water medium pneumatic cylinder.
Background
The liquid medium in the existing hydraulic cylinder is emulsion, so the working environment of the hydraulic cylinder is the emulsion environment, and the performance of the sealing material corresponding to the hydraulic cylinder is developed according to the emulsion.
The emulsion is used as a medium, so that the defects that the emulsion pollutes the environment when leaking, and the sealing abrasion is accelerated when the concentration of the emulsion medium does not meet the requirement are overcome; thirdly, the short life time of the emulsion results in increased maintenance frequency for replacing the emulsion, and fourthly, the cost of the emulsion is relatively high.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention proposes a sealing assembly for a pure water medium hydraulic cylinder and a hydraulic cylinder in order to overcome the above problems or at least partially solve the above problems.
According to the utility model discloses an aspect provides a seal assembly of pure water medium pneumatic cylinder, its characterized in that, seal assembly sets up on the pneumatic cylinder, the liquid medium in the pneumatic cylinder is the pure water medium, seal assembly includes: the sealing device comprises a cylinder opening sealing piece and a cylinder bottom sealing piece, wherein the cylinder opening sealing piece is arranged at a cylinder opening of the hydraulic cylinder, and the cylinder bottom sealing piece is arranged at the bottom of a cylinder body of the hydraulic cylinder;
the cylinder opening sealing element and the cylinder bottom sealing element are made of the following materials: a polymer chemical material to which a lubricating material is added;
the cylinder port seal includes: dust ring, O type circle, rod seal, pole guide ring and static seal, the dust ring O type circle the pole is sealed the pole guide ring with the static seal sets gradually the jar mouth at the pneumatic cylinder, the cylinder bottom sealing member includes: the piston guide ring is arranged on any one of two sides of the piston seal;
the hydraulic cylinder includes a piston post and a first cylinder body, the piston post is disposed in the first cylinder body, the rod guide ring includes: the piston post comprises a plunger rod guide ring and a first cylinder rod guide ring, wherein the plunger rod guide ring is arranged on the inner side of the plunger rod seal of the piston post, and the first cylinder rod guide ring is arranged on the outer wall of the first cylinder body.
Further, the dust ring includes first dust ring and second dust ring, first dust ring sets up on the piston post, the second dust ring sets up first cylinder body outer wall.
Further, the first dust ring and the second dust ring are made of the following materials: polyurethane with added lubricating material.
Further, the O-ring comprises: a first O-ring and a second O-ring, the first O-ring disposed inside the first dust ring of the piston post, the second O-ring disposed inside the second dust ring of the outer wall of the first cylinder block;
the first O-shaped ring and the second O-shaped ring are made of the following materials: polyurethane with added lubricating material.
Further, the stem seal includes: a plunger rod seal and a first cylinder seal, the plunger rod seal being disposed inside the first O-ring of the piston post, the first cylinder seal being disposed inside the second O-ring of the first cylinder outer wall, the first cylinder rod guide ring being disposed inside the first cylinder seal of the first cylinder outer wall;
the plunger rod seal and the first cylinder seal comprise: a polyurethane layer added with a lubricating material, a nitrile rubber layer and a polyformaldehyde layer.
Further, the piston rod guide ring and the first cylinder rod guide ring are made of the following materials: adding phenolic resin of lubricating material.
Further, the hydraulic cylinder still includes the second cylinder body, first cylinder body sets up in the second cylinder body, the static seal includes: the movable column static seal is arranged on the inner wall of the cylinder opening of the first cylinder body and positioned on the inner side of the movable column rod guide ring, and the first cylinder body static seal is arranged on the inner wall of the cylinder opening of the second cylinder body and positioned on the inner side of the first cylinder rod guide ring;
the plunger static seal and the first cylinder static seal are made of the following materials: polyurethane with added lubricating material.
Further, the piston seal comprises: the piston seal of the plunger and the piston seal of the first cylinder body are arranged on the inner wall of the bottom of the first cylinder body, and the piston seal of the first cylinder body is arranged on the inner wall of the bottom of the second cylinder body;
the plunger piston seal and the first cylinder piston seal comprise: a polyurethane layer added with a lubricating material, a nitrile rubber layer and a wear-resistant layer.
Further, the piston guide ring includes: the piston guide ring is arranged on the outer side of the piston seal of the plunger on the inner wall of the bottom of the first cylinder body, and the piston guide ring of the first cylinder is arranged on the inner side of the piston seal of the first cylinder body on the inner wall of the bottom of the second cylinder body;
the plunger piston guide ring and the first cylinder piston guide ring are made of the following materials: adding phenolic resin of lubricating material.
According to the utility model discloses a second aspect provides a pure water medium pneumatic cylinder, and the liquid medium in the pneumatic cylinder is the pure water medium, with the first aspect the seal assembly of pure water medium pneumatic cylinder install on the pneumatic cylinder.
The embodiment of the utility model provides a seal assembly and pneumatic cylinder of pure water medium pneumatic cylinder has following beneficial effect:
through the technical scheme of the utility model, add the pure water medium in the pneumatic cylinder, the pure water medium does not contain any toxin, even the condition that the pure water medium appears leaking also does not pollute the environment, the difficult rotten life of pure water medium is longer, in addition, in order to guarantee the sealed effect of pure water medium, jar mouth at the pneumatic cylinder sets up jar mouth sealing member, set up jar bottom sealing member in the cylinder body bottom, and in order to cooperate the pure water medium, guarantee the sealed effect of pure water medium, the macromolecular material that adds lubricating material is chooseed for use to these seal assembly's material, make the sealed protection pure water medium that these seal assembly can be better, improve the frequency that life reduced the maintenance.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
The invention will be more clearly understood from the following detailed description, with reference to the accompanying drawings, in which:
fig. 1 is a schematic structural diagram of a sealing assembly of a pure water medium hydraulic cylinder according to an embodiment of the present invention;
fig. 2 is a schematic view of a specific structure of a sealing assembly of the pure water medium hydraulic cylinder according to the embodiment of the present invention.
Description of reference numerals: 1, a cylinder opening sealing element, 11, a first dustproof ring, 12, a second dustproof ring, 13, a first O-ring, 14, a second O-ring, 15 and a movable column rod seal, 16, a first cylinder body seal, 17 and 18, first cylinder rod guide rings, 19 and movable column static seals, and 110, a first cylinder body static seal;
2 cylinder bottom sealing element, 21 plunger piston sealing, 22 first cylinder piston sealing, 23 plunger piston guide ring, and 24 first cylinder piston guide ring.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless specifically stated otherwise, the relative arrangement of the components, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention.
Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
As shown in fig. 1, the present embodiment provides a seal assembly for a pure water medium hydraulic cylinder, the seal assembly is disposed on the hydraulic cylinder, the liquid medium in the hydraulic cylinder is a pure water medium, and the seal assembly includes: the sealing device comprises a cylinder opening sealing member 1 and a cylinder bottom sealing member 2, wherein the cylinder opening sealing member 1 is arranged at the cylinder opening of the hydraulic cylinder, and the cylinder bottom sealing member 2 is arranged at the bottom of the cylinder body of the hydraulic cylinder. The cylinder opening sealing piece 1 and the cylinder bottom sealing piece 2 are made of the following materials: a polymer material to which a lubricating material is added.
Wherein, seal assembly is the pure water medium that is used for protecting in the pneumatic cylinder, seals the pure water medium, prevents that the pure water medium from leaking, prevents simultaneously that foreign matter (for example, dust) from getting into and causing the pollution or influencing the life of pure water medium in the pneumatic cylinder to the pure water medium.
The pure water medium arranged in the hydraulic cylinder does not contain any toxin, so that the environment is not polluted even if the pure water medium leaks, and the pure water medium is not easy to deteriorate and has long service life. However, the lubricating effect of the pure water medium may not be ideal, so that the lubricating material is correspondingly added into the polymer material selected for the sealing assembly of the embodiment, and the lubricating effect of the sealing assembly can be ensured while the sealing performance of the sealing assembly is ensured.
The polymer material has better stability, chemical resistance, rebound resilience and mechanical property and has smaller compression deformability.
The cylinder port seal 1 includes: dust ring, O type circle, rod seal, pole guide ring and static seal, dust ring, O type circle, pole seal, pole guide ring and static seal set gradually the jar mouth at the pneumatic cylinder, and jar bottom sealing member 2 includes: the piston sealing device comprises a piston seal and a piston guide ring, wherein the piston guide ring is arranged on any one of two sides of the piston seal.
The dustproof ring is arranged on the outermost side of the cylinder opening, so that external impurities are prevented from entering the dustproof ring, and the dustproof ring has a dustproof effect; the O-shaped ring is arranged on the inner side of the dust ring and used for strengthening the function of the dust ring and preventing dust and water; the rod is arranged on the inner side of the O-shaped ring in a sealing manner and is used for preventing the pure water medium from leaking; the rod guide ring is arranged on the inner side of the rod seal and used for guiding when the rod moves and preventing the pure water medium from leaking; the static seal is arranged on the inner wall of the cylinder body of the cylinder opening and is used for preventing pure water medium from flowing out of the gap of the cylinder opening.
The piston is arranged at the bottom of the cylinder body in a sealing manner and is used for preventing the pure water medium from leaking inwards; the piston guide ring is arranged on any side of the piston seal and used for guiding the movement of the piston in the hydraulic cylinder and simultaneously avoiding the leakage of the pure water medium inside.
The pneumatic cylinder includes piston post and first cylinder body, and the piston post setting is in first cylinder body, and the pole guide ring includes: a plunger rod guide ring 17 and a first cylinder rod guide ring 18, the plunger rod guide ring 17 being arranged inside the plunger rod seal 15 of the piston post, the first cylinder rod guide ring 18 being arranged on the outer wall of the first cylinder.
The piston rod guide ring 17 serves to guide the piston rod as it moves within the first cylinder while preventing the pure water medium in the first cylinder from leaking out. The first cylinder rod guide ring 18 serves to guide the first cylinder body while preventing the pure water medium in the second cylinder body from leaking out when the first cylinder body moves in the second cylinder body.
Through above-mentioned scheme, the liquid medium in with the pneumatic cylinder is replaced by the pure water medium by the emulsion to in order to cooperate the use of pure water medium, correspond in the macromolecular material of chooseing for use of the seal assembly of pneumatic cylinder and add the lubricant, when can sealing the pure water medium, can also guarantee seal assembly's lubricated effect.
In a specific embodiment, as shown in fig. 2, the dust ring comprises a first dust ring 11 and a second dust ring 12, the first dust ring 11 is arranged on the piston column, and the second dust ring 12 is arranged on the outer wall of the first cylinder body. The first dustproof ring 11 is used for protecting the pure water medium in the first cylinder body, and the second dustproof ring 12 is used for protecting the pure water medium in the second cylinder body and preventing external impurities from entering.
In a specific embodiment, the first dust ring 11 and the second dust ring 12 are made of the following materials: polyurethane with added lubricating material.
In the scheme, the material is polyurethane added with a lubricating material, the polyurethane is short for polyurethane, and has good stability, chemical resistance, rebound resilience and mechanical property, smaller compression deformability and good heat insulation, sound insulation, shock resistance and gas defense properties. The added lubricating materials include: molybdenum disulfide, graphite, boron nitride, silicon nitride polytetrafluoroethylene, soft metals, and the like. After the lubricating material is added into the polyurethane, the lubricating effect can be improved on the premise of ensuring the performance of the polyurethane.
In a particular embodiment, the O-ring comprises: the first O-shaped ring 13 is arranged on the inner side of the first dust ring 11 of the piston column, and the second O-shaped ring 14 is arranged on the inner side of the second dust ring 12 of the outer wall of the first cylinder body; the first O-ring 13 and the second O-ring 14 are made of the following materials: polyurethane with added lubricating material.
In the above scheme, the first O-ring 13 is used to protect the pure water medium in the first cylinder for dust prevention and water prevention, and the second O-ring 14 is used to protect the pure water medium in the second cylinder for dust prevention and water prevention. Mainly for reinforcing the function of the first dust ring 11 and the second dust ring 12. The material is also selected from polyurethane added with lubricating materials. The polyurethane is short for polyurethane, has good stability, chemical resistance, rebound resilience and mechanical property, has smaller compression deformability, and has good heat insulation, sound insulation, shock resistance and gas resistance. The added lubricating materials include: molybdenum disulfide, graphite, boron nitride, silicon nitride polytetrafluoroethylene, soft metals, and the like. After the lubricating material is added into the polyurethane, the lubricating effect can be improved on the premise of ensuring the performance of the polyurethane.
In a particular embodiment, the stem seal comprises: a plunger rod seal 15 and a first cylinder body seal 16, wherein the plunger rod seal 15 is arranged on the inner side of a first O-ring 13 of the piston column, the first cylinder body seal 16 is arranged on the inner side of a second O-ring 14 of the outer wall of the first cylinder body, and a first cylinder rod guide ring 18 is arranged on the inner side of the first cylinder body seal 16 of the outer wall of the first cylinder body; the plunger rod seal 15 and the first cylinder seal 16 comprise: a polyurethane layer added with a lubricating material, a nitrile rubber layer and a polyformaldehyde layer.
In the above scheme, the post rod that lives seals 15 is used for preventing that the inside pure water medium of first cylinder body from leaking outward, and the sealed 16 of first cylinder body is used for preventing that the inside pure water medium of second cylinder body from leaking outward, and post rod that lives seals 15 and the sealed 16 relative thicker of first cylinder body are equipped with the polyurethane layer, butadiene acrylonitrile rubber layer and the polyformaldehyde layer three-layer that add lubricating material from inside to outside in proper order, and then the inside pure water medium of protection that can be better for the condition of leaking outward can not appear in the pure water medium.
In a specific embodiment, the plunger rod guide ring 17 and the first cylinder rod guide ring 18 are made of the following materials: adding phenolic resin of lubricating material.
In the above scheme, the phenolic resin has high strength and high temperature resistance, so that the shapes of the plunger rod guide ring 17 and the first cylinder rod guide ring 18 are not affected by external force. The materials of the movable post rod guide ring 17 and the first cylinder rod guide ring 18 are phenolic resin added with lubricating materials, so that deformation is avoided during movement, and meanwhile, the lubricating effect in the movement process can be guaranteed by adding the lubricating materials, and friction is reduced.
In a specific embodiment, as shown in fig. 2, the hydraulic cylinder further includes a second cylinder body, the first cylinder body is disposed in the second cylinder body, and the static seal includes: the plunger static seal 19 is arranged on the inner wall of the cylinder opening of the first cylinder body and is positioned at the inner side of the plunger rod guide ring 17, and the first cylinder body static seal 110 is arranged on the inner wall of the cylinder opening of the second cylinder body and is positioned at the inner side of the first cylinder rod guide ring 18; the plunger static seal 19 and the first cylinder static seal 110 are made of the following materials: polyurethane with added lubricating material.
In the above scheme, the plunger static seal 19 is arranged on the inner wall of the cylinder opening of the first cylinder body and is arranged corresponding to the plunger rod guide ring 17, so that the plunger static seal 19 and the plunger rod guide ring 17 are mutually matched to better seal pure water media in the first cylinder body and prevent the pure water media from flowing out of the gap of the cylinder opening. The first cylinder body static seal 110 is arranged on the inner wall of the cylinder opening of the second cylinder body and is arranged corresponding to the first cylinder piston guide ring 24, and the first cylinder body static seal 110 and the first cylinder piston guide ring 24 are matched with each other to better seal pure water media in the second cylinder body and prevent the pure water media from flowing out from the gap of the cylinder opening.
The plunger static seal 19 and the first cylinder static seal 110 both use polyurethane added with lubricating materials, and the action and the effect are the same as the above.
In a particular embodiment, the piston seal comprises: the piston seal 21 of the plunger and the piston seal 22 of the first cylinder body, the piston seal 21 of the plunger is set up on the bottom inner wall of the first cylinder body, the piston seal 22 of the first cylinder body is set up on the bottom inner wall of the second cylinder body; the plunger piston seal 21 and the first cylinder piston seal 22 include: a polyurethane layer added with a lubricating material, a nitrile rubber layer and a wear-resistant layer.
In the above scheme, the condition of interior hourglass can effectively prevent to appear in the pure water medium in the first cylinder body in the piston seal 21 of living post, and the condition of interior hourglass can effectively prevent to appear in the pure water medium in the second cylinder body in the piston seal 22 of first cylinder body. The plunger piston seal 21 and the first cylinder piston seal 22 are also relatively thick and provided with three layers of a polyurethane layer added with a lubricating material, a nitrile rubber layer and a wear-resistant layer.
Wherein, the wear-resisting layer adopts high strength material, for example, one or more of polyurethane, polyformaldehyde, nylon, phenolic resin, polytetrafluoroethylene, polyether ketone, copper, polyamide resin.
In a particular embodiment, the piston guide ring comprises: the plunger piston guide ring 23 is arranged on the outer side of the plunger piston seal 21 on the inner wall of the bottom of the first cylinder body, and the first cylinder piston guide ring 24 is arranged on the inner side of the first cylinder piston seal 22 on the inner wall of the bottom of the second cylinder body; the materials used for the plunger piston guide ring 23 and the first cylinder piston guide ring 24 are: adding phenolic resin of lubricating material.
In the above solution, the plunger piston guide ring 23 is used to guide the plunger to perform a linear piston motion in the first cylinder, and simultaneously protect the pure water medium from leaking out. The first cylinder piston guide ring 24 is used to guide the first cylinder body to perform a linear piston motion in the second cylinder body while protecting the pure water medium from leaking out.
In addition, the phenolic resin has high strength and high temperature resistance, so that the shapes of the plunger rod guide ring 17 and the first cylinder rod guide ring 18 are not influenced by external force. The material of plunger piston guide ring 23 and first jar piston guide ring 24 chooses for use the phenolic resin who adds lubricating material, guarantees can not take place deformation when carrying out the piston motion, adds lubricating material simultaneously and can also guarantee the lubricated effect of motion in-process, reduces the friction.
According to the utility model discloses a another embodiment provides a pure water medium pneumatic cylinder, and the liquid medium in the pneumatic cylinder is the pure water medium, with above-mentioned embodiment the seal assembly of pure water medium pneumatic cylinder install on the pneumatic cylinder. The description of the specific mounting position is as in the above embodiments.
Through the utility model discloses a scheme of above-mentioned embodiment, add the pure water medium in the pneumatic cylinder, the pure water medium does not contain any toxin, even the condition that the pure water medium appears leaking also does not pollute the environment, the difficult rotten life of pure water medium is longer, in addition in order to guarantee the sealed effect of pure water medium, jar mouth at the pneumatic cylinder sets up jar mouth sealing member, set up the cylinder bottom sealing member in the cylinder body bottom, and in order to guarantee the sealed effect of pure water medium, the macromolecular material of interpolation lubricating material is chooseed for use to these seal assembly's material, make the sealed protection pure water medium that these seal assembly can be better, improve the frequency that life reduced the maintenance.
In the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts in the embodiments are referred to each other.
The description of the present invention has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to practitioners skilled in this art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (10)
1. The utility model provides a seal assembly of pure water medium pneumatic cylinder which characterized in that, seal assembly sets up on the pneumatic cylinder, the liquid medium in the pneumatic cylinder is the pure water medium, seal assembly includes: the sealing device comprises a cylinder opening sealing piece (1) and a cylinder bottom sealing piece (2), wherein the cylinder opening sealing piece (1) is arranged at the cylinder opening of the hydraulic cylinder, and the cylinder bottom sealing piece (2) is arranged at the bottom of the cylinder body of the hydraulic cylinder;
the cylinder opening sealing piece (1) and the cylinder bottom sealing piece (2) are made of the following materials: a polymer chemical material to which a lubricating material is added;
the cylinder port seal (1) comprises: dust ring, O type circle, rod seal, pole guide ring and static seal, the dust ring O type circle the pole is sealed the pole guide ring with the static seal sets gradually the jar mouth at the pneumatic cylinder, cylinder bottom sealing member (2) include: the piston guide ring is arranged on any one of two sides of the piston seal;
the hydraulic cylinder includes a piston post and a first cylinder body, the piston post is disposed in the first cylinder body, the rod guide ring includes: a piston rod guide ring (17) and a first cylinder rod guide ring (18), the piston rod guide ring (17) being arranged inside the rod seal of the piston rod, the first cylinder rod guide ring (18) being arranged on the first cylinder outer wall.
2. The seal assembly according to claim 1, wherein the dust ring comprises a first dust ring (11) and a second dust ring (12), the first dust ring (11) being disposed on the piston post, the second dust ring (12) being disposed on the first cylinder outer wall.
3. The sealing assembly according to claim 2, characterized in that the first and second dust rings (11, 12) are made of: polyurethane with added lubricating material.
4. The seal assembly of claim 3, wherein the O-ring comprises: a first O-ring (13) and a second O-ring (14), the first O-ring (13) being disposed inside the first dust ring (11) of the piston post, the second O-ring (14) being disposed inside the second dust ring (12) of the first block outer wall;
the first O-ring (13) and the second O-ring (14) are made of the following materials: polyurethane with added lubricating material.
5. The seal assembly of claim 4, wherein the rod seal comprises: a piston rod seal (15) and a first cylinder seal (16), the piston rod seal (15) being disposed inside the first O-ring (13) of the piston column, the first cylinder seal (16) being disposed inside the second O-ring (14) of the first cylinder outer wall, the first cylinder rod guide ring (18) being disposed inside the first cylinder seal (16) of the first cylinder outer wall;
the plunger rod seal (15) and the first cylinder seal (16) comprise: a polyurethane layer added with a lubricating material, a nitrile rubber layer and a polyformaldehyde layer.
6. The seal assembly according to claim 5, characterized in that the piston rod guide ring (17) and the first cylinder rod guide ring (18) are made of the following materials: adding phenolic resin of lubricating material.
7. The seal assembly of claim 6, wherein the hydraulic cylinder further comprises a second cylinder, the first cylinder disposed within the second cylinder, the static seal comprising: the piston static seal (19) is arranged on the inner wall of the cylinder opening of the first cylinder body and is positioned on the inner side of the piston rod guide ring (17), and the first cylinder static seal (110) is arranged on the inner wall of the cylinder opening of the second cylinder body and is positioned on the inner side of the first cylinder rod guide ring (18);
the plunger static seal (19) and the first cylinder static seal (110) are made of the following materials: polyurethane with added lubricating material.
8. The seal assembly of claim 7, wherein the piston seal comprises: the piston seal (21) is arranged on the inner wall of the bottom of the first cylinder, and the piston seal (22) is arranged on the inner wall of the bottom of the second cylinder;
the plunger piston seal (21) and the first cylinder piston seal (22) comprise: a polyurethane layer added with a lubricating material, a nitrile rubber layer and a wear-resistant layer.
9. The seal assembly of claim 8, wherein the piston guide ring comprises: a plunger piston guide ring (23) and a first cylinder piston guide ring (24), the plunger piston guide ring (23) is arranged on the outer side of the plunger piston seal (21) on the bottom inner wall of the first cylinder body, and the first cylinder piston guide ring (24) is arranged on the inner side of the first cylinder piston seal (22) on the bottom inner wall of the second cylinder body;
the plunger piston guide ring (23) and the first cylinder piston guide ring (24) are made of the following materials: adding phenolic resin of lubricating material.
10. A pure water medium hydraulic cylinder characterized in that the liquid medium in the hydraulic cylinder is a pure water medium, and the seal assembly of the pure water medium hydraulic cylinder according to any one of claims 1 to 9 is attached to the hydraulic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023288037.9U CN214837473U (en) | 2020-12-30 | 2020-12-30 | Sealing assembly of pure water medium hydraulic cylinder and hydraulic cylinder |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023288037.9U CN214837473U (en) | 2020-12-30 | 2020-12-30 | Sealing assembly of pure water medium hydraulic cylinder and hydraulic cylinder |
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| CN214837473U true CN214837473U (en) | 2021-11-23 |
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| CN202023288037.9U Active CN214837473U (en) | 2020-12-30 | 2020-12-30 | Sealing assembly of pure water medium hydraulic cylinder and hydraulic cylinder |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240715 Address after: 110027 25 development road, Shenyang economic and Technological Development Zone, Liaoning Patentee after: Sany Heavy Equipment Co.,Ltd. Country or region after: China Patentee after: Sany Intelligent Equipment Co.,Ltd. Address before: No.25 Kaifa Road, Shenyang Economic and Technological Development Zone, Liaoning Province Patentee before: Sany Heavy Equipment Co.,Ltd. Country or region before: China |