CN106567928A - Sealing dustproof ring for SPD-type piston rod - Google Patents
Sealing dustproof ring for SPD-type piston rod Download PDFInfo
- Publication number
- CN106567928A CN106567928A CN201611000711.4A CN201611000711A CN106567928A CN 106567928 A CN106567928 A CN 106567928A CN 201611000711 A CN201611000711 A CN 201611000711A CN 106567928 A CN106567928 A CN 106567928A
- Authority
- CN
- China
- Prior art keywords
- lip
- piston rod
- sealing
- spd
- dustproof
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
- F16J15/3232—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1457—Piston rods
- F15B15/1461—Piston rod sealings
Abstract
The invention discloses a sealing dustproof ring for an SPD-type piston rod. The sealing dustproof ring comprises a dustproof ring body which is arranged on the piston rod in a sleeving mode and is in a lip shape. A high temperature resistance O ring made of a rubber material is arranged between two lips of the dustproof ring body. A tail lip and an auxiliary lip located above the tail lip are arranged on the tail portion of the dustproof ring body. The tail lip and the auxiliary lip are arranged to form an opened included angle. According to the sealing dustproof ring for the SPD-type piston rod, the auxiliary lip is additionally arranged, the high temperature resistance and good elasticity O ring made of the rubber material is additionally arranged at the sealed side, the sealing dustproof effect can be enhanced, and the service life can be prolonged; and the dustproof enhanced effect is obvious, the sealing property is improved, and the service life of the product is prolonged.
Description
Technical field
The present invention relates to a kind of technical field of the piston packing of plastic cement sealing, more particularly to a kind of SPD types piston rod
Use sealing and dustproof circle.
Background technology
At present, dust ring is mainly used in oil cylinder or power transmission shaft, and Main Function is to remove reciprocating piston bar to be exposed at outside cylinder
The dirt such as accompanying dust, sand-lime, water on portion surface, prevents external dust, water from entering inside sealing mechanism.Good dust ring
Should be sharp lip type structure, low-friction coefficient.Can so realize preventing extraneous dust from entering system, while also reducing
The abrasion of equipment, for oil cylinder or power transmission shaft, such as PTFE dust rings, using PTFE skeletons and the dust ring of O-ring structure, can be with
In the dust-proof use of bad environments oil cylinder, with self lubricity.Oil cylinder piston can be protected simultaneously not damaged by dust.
But, the dust-proof coil structures of prior art are the design structures using single lip, and its dust-proof effect typically, make by long-time
With U-shaped two lip without bounce, elasticity is reduced, sealing effectiveness gradually fails.Dust ring as described in Figure 2 does not have dust-proof stronger anti-
Dirt function.
The content of the invention
The invention aims to overcome the shortcoming of above-mentioned prior art, there is provided a kind of SPD types piston rod is anti-with sealing
Konisphere, SPD types piston rod sealing and dustproof circle increase a secondary lip, and sealing side increases high temperature resistant, the good rubber material of elasticity
Material high temperature resistant O-ring, which can strengthen sealing, dust-proof effect and service life, and significantly, sealing property is improved dust-proof reinforced effects,
Product service life extends.
The technical solution adopted for the present invention to solve the technical problems is：A kind of SPD types piston rod sealing and dustproof circle, bag
Include and be placed on piston rod the dust-proof circle body in lip shape, between two lips of described dust-proof circle body, be provided with the high temperature resistant of elastomeric material
O-ring, the afterbody of dust-proof circle body are provided with caudal lip and are located above caudal lip and be provided with secondary lip, and caudal lip is set into the angle for opening with secondary lip
Put.
Further, described high temperature resistant O-ring is completely interior to sink between two lips and by the complete jam-packed of two lips.
Further, described secondary lip is shorter in length than caudal lip length.
In sum, SPD types piston rod of the invention sealing and dustproof circle increases a secondary lip, and sealing side increases resistance to height
Temperature, the good elastomeric material high temperature resistant O-ring of elasticity, which can strengthen sealing, dust-proof effect and service life, and dust-proof reinforced effects show
Write, sealing property is improved, product service life extends.
Description of the drawings
Fig. 1 is a kind of structural representation of SPD types piston rod sealing and dustproof circle of the embodiment of the present invention 1；
Fig. 2 is the structural representation of the sealing ring of prior art.
Specific embodiment
Embodiment 1
A kind of SPD types piston rod sealing and dustproof circle described by the present embodiment 1, as described in Figure 1, including being placed on piston rod be in
The dust-proof circle body 1 of lip shape, is provided with the high temperature resistant O-ring 2 of elastomeric material, dust-proof circle body between two lips of described dust-proof circle body
Afterbody be provided with caudal lip 3 and be located above caudal lip and be provided with secondary lip 4, caudal lip is arranged into the angle for opening with secondary lip.
The high temperature resistant O-ring is completely interior to sink between two lips and by the complete jam-packed of two lips.
The secondary lip is shorter in length than caudal lip length.
The above, is only presently preferred embodiments of the present invention, not makees any pro forma to the structure of the present invention
Limit.Any simple modification, equivalent variations and modification that every technical spirit according to the present invention is made to above example,
Still fall within the range of technical scheme.
Claims (3)
1. a kind of SPD types piston rod sealing and dustproof circle, including the dust-proof circle body in lip shape is placed on piston rod, its feature exists
In, be provided with the high temperature resistant O-ring of elastomeric material between two lips of described dust-proof circle body, the afterbody of dust-proof circle body be provided with caudal lip and
Secondary lip is provided with above caudal lip, caudal lip is arranged into the angle for opening with secondary lip.
2. a kind of SPD types piston rod sealing and dustproof circle according to claim 1, it is characterised in that described high temperature resistant O
Type circle is completely interior to sink between two lips and by the complete jam-packed of two lips.
3. a kind of SPD types piston rod sealing and dustproof circle according to claim 2, it is characterised in that described secondary lip is long
Degree is shorter than caudal lip length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611000711.4A CN106567928A (en) | 2016-11-14 | 2016-11-14 | Sealing dustproof ring for SPD-type piston rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611000711.4A CN106567928A (en) | 2016-11-14 | 2016-11-14 | Sealing dustproof ring for SPD-type piston rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106567928A true CN106567928A (en) | 2017-04-19 |
Family
ID=58542722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611000711.4A Pending CN106567928A (en) | 2016-11-14 | 2016-11-14 | Sealing dustproof ring for SPD-type piston rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106567928A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2314899A1 (en) * | 2009-10-21 | 2011-04-27 | Carl Freudenberg KG | Seal device with a high cold flexibility for sealing a piston |
| CN203926778U (en) * | 2014-06-26 | 2014-11-05 | 唐慧 | Novel ceramic press master cylinder major diameter dust ring |
| CN204061903U (en) * | 2014-06-20 | 2014-12-31 | 陕西科隆能源科技有限公司 | The rod seal of ultrahigh pressure new type compound |
-
2016
- 2016-11-14 CN CN201611000711.4A patent/CN106567928A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2314899A1 (en) * | 2009-10-21 | 2011-04-27 | Carl Freudenberg KG | Seal device with a high cold flexibility for sealing a piston |
| CN204061903U (en) * | 2014-06-20 | 2014-12-31 | 陕西科隆能源科技有限公司 | The rod seal of ultrahigh pressure new type compound |
| CN203926778U (en) * | 2014-06-26 | 2014-11-05 | 唐慧 | Novel ceramic press master cylinder major diameter dust ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170419 |
|
| WD01 | Invention patent application deemed withdrawn after publication |