CN113551038A - Metal combination dust ring in dangerous useless field - Google Patents
Metal combination dust ring in dangerous useless field Download PDFInfo
- Publication number
- CN113551038A CN113551038A CN202110894890.5A CN202110894890A CN113551038A CN 113551038 A CN113551038 A CN 113551038A CN 202110894890 A CN202110894890 A CN 202110894890A CN 113551038 A CN113551038 A CN 113551038A
- Authority
- CN
- China
- Prior art keywords
- metal
- lip body
- groove
- dust ring
- metal shell
- 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
- 239000002184 metal Substances 0.000 title claims abstract description 148
- 239000000428 dust Substances 0.000 title claims abstract description 43
- 238000007789 sealing Methods 0.000 claims abstract description 53
- 239000000945 filler Substances 0.000 claims abstract description 26
- 239000002920 hazardous waste Substances 0.000 claims abstract description 15
- 239000011248 coating agent Substances 0.000 claims description 14
- 238000000576 coating method Methods 0.000 claims description 14
- 229920001973 fluoroelastomer Polymers 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 229910000906 Bronze Inorganic materials 0.000 claims description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 3
- ZFVMWEVVKGLCIJ-UHFFFAOYSA-N bisphenol AF Chemical compound C1=CC(O)=CC=C1C(C(F)(F)F)(C(F)(F)F)C1=CC=C(O)C=C1 ZFVMWEVVKGLCIJ-UHFFFAOYSA-N 0.000 claims description 3
- 238000007766 curtain coating Methods 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 description 6
- 238000007790 scraping Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000010426 asphalt Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002905 metal composite material Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000011365 complex material Substances 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002085 irritant Substances 0.000 description 1
- 231100000021 irritant Toxicity 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
Images
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
- 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
- F16J15/3248—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports
- F16J15/3252—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports with rigid casings or supports
-
- 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
- F16J15/328—Manufacturing methods specially adapted for elastic sealings
-
- 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
- F16J15/3284—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings characterised by their structure; Selection of materials
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Sealing Devices (AREA)
Abstract
A metal combined dust ring in the hazardous waste field comprises a metal shell, wherein a groove of the metal shell is bonded with an elastic lip body and a metal framework, the elastic lip body is in a right trapezoid shape, an inclined edge of the elastic lip body is in an arc shape and comprises a mounting part and a sealing part, the mounting part is positioned at one side part of the groove of the metal shell, the sealing part extends out of the groove of the metal shell, the metal framework is mounted at the bottom of the other side part of the groove and is contacted with a long side wall of the mounting part, a metal lip body is bonded on an inner bulge of the metal framework and comprises a mounting head and a sealing head, the mounting head is positioned in the groove, the sealing head extends out of the groove and is in an isosceles triangle shape, a first sealing filler is arranged on a groove formed by the long side wall of the elastic lip body, one side of a bulge of the metal framework and one side of the metal lip body, a second sealing filler is arranged on a groove formed by the other side of the metal lip body, the other side of the bulge of the metal framework and one inner side wall of the metal shell, the sealing filler does not extend out of the groove of the metal shell.
Description
Technical Field
The invention relates to the technical field of dust rings, in particular to a metal combined dust ring in the field of hazardous waste treatment.
Background
In the process of treating the hazardous waste, because the materials have strong corrosive and irritant odor and are partially inflammable, once the sealing fails, the leakage of the materials can cause direct harm to personnel or cause dangerous events such as combustion, explosion and the like,
therefore, the sealing performance of the relevant equipment is very important during the processes of receiving, storing, transporting and the like. The shaft seal of the related processing equipment uses a dust ring made of conventional plastic materials, but due to the complex material condition, strong corrosivity, the existence of solid and hard objects such as metal chips, ice particles and the like, the materials are attached to the shaft, and the situation that the sealing element is damaged and fails to bring the materials out when the shaft reciprocates is often generated.
Disclosure of Invention
The invention aims to solve the technical problems and provide a metal combined dust ring which is reliable in working and is used in the field of hazardous waste treatment.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a metal combination dust ring in useless field of danger which characterized in that: the sealing device comprises a metal shell with a U-shaped section, wherein an elastic lip body and a metal framework with a T-shaped section are bonded on a groove of the metal shell, the elastic lip body is in a right trapezoid shape in a natural state, an inclined edge of the elastic lip body is in an arc shape, the elastic lip body comprises a mounting part and a sealing part, the mounting part is positioned at one side part of the groove of the metal shell, the sealing part extends out of the groove of the metal shell, the metal framework is mounted at the bottom of the other side part of the groove and is in contact with the long side wall of the mounting part, a metal lip body is bonded on an inner bulge of the metal framework, the metal lip body comprises a mounting head and a sealing head, the mounting head is positioned in the groove, the sealing head extends out of the groove, the sealing head is in an isosceles triangle shape in a natural state, a first sealing filler is arranged on a first groove formed among the long side wall of the elastic lip body, the bulge side of the metal framework and one side of the metal lip body, and a second sealing filler is arranged on a second groove formed by the other side of the metal lip body, the other side of the protrusion of the metal framework and one inner side wall of the metal shell, and the sealing filler does not extend out of the groove of the metal shell.
The metal shell is made of stainless steel, the metal lip body is made of tin bronze alloy, and the elastic lip body is made of fluororubber with Shore hardness of A70-A75 and tensile strength of 15 Mpa.
In a natural state, the inner circle diameter of the elastic lip body is 5-10% smaller than the nominal diameter of the metal combined dust ring, and the inner circle diameter of the metal lip body is 5-10% smaller than the nominal diameter of the metal combined dust ring.
Under the natural state, the inner diameters of the sealing filler and the metal shell are 5-10% larger than the nominal diameter of the metal combined dust ring.
After the metal combined dust ring is installed in a press fit mode, the metal lip body and the elastic body lip of the metal combined dust ring are tightly attached to the piston rod, and a gap of 2-5mm is reserved between the metal shell and the piston rod.
The bonding process of the metal shell and the elastic lip body is as follows: firstly, folding the metal shell into an L shape, coating a tackifying promoter on the inner surface of the metal shell, and heating to dry the surface of the metal shell; and then coating bisphenol AF fluororubber vulcanized coating in a spraying or curtain coating mode, installing the elastic lip body on the bent side, baking and heating to volatilize a coating solvent to achieve primary curing, finally transferring the metal shell and the elastic lip body into a blast oven to vulcanize for 1-3 hours at the high temperature of 250 ℃ for 150-.
The metal framework, the metal lip body ring, the first sealing filler and the second sealing filler are fluidized and bonded together, then are placed on the elastic lip body, the metal plate on the outer side is bent again to form a U-shaped coating, and finally the metal framework, the metal lip body ring, the first sealing filler and the second sealing filler are installed on the piston rod in a press-fit mode.
The invention has the beneficial effects that: the first metal lip body can remove solid hazardous wastes such as slurry, asphalt, oil sludge, metal debris, ice particles and the like which are firmly attached to the piston rod, and the second elastic lip body improves the overall scraping effect, namely the hazardous wastes such as fine particles, water and the like are reliably scraped; the inner diameters of the sealing filler and the metal shell are about 5-10% larger than the nominal diameter of the metal combined dust ring, a certain gap S is formed according to different specifications, the two dust scraping lips have elasticity, and elastic deformation can occur within the range of the gap value, so that the function and the service life of the dust ring are not influenced after the piston rod is subjected to a certain amount of bending deformation, and the service life of the sealing element is ensured.
Drawings
In order to more clearly explain the embodiments of the present invention, the embodiments will be described below with reference to the accompanying drawings.
FIG. 1 is a schematic structural view of the metal composite dust ring of the present invention.
Fig. 2 is a schematic view of the structure of the present invention mounted on the piston rod.
Fig. 3 is a schematic view of a partial structure of the assembled dust ring after installation.
Fig. 4 is a schematic structural view of the elastic lip body bonded to the metal shell.
Detailed Description
The following detailed description of the present invention will be made with reference to the accompanying drawings and examples, which are provided for illustration of the present invention and are not intended to limit the scope of the present invention.
As shown in FIGS. 1 to 4, the metal combined dust ring in the hazardous waste field of the present invention comprises a metal shell 1 with a U-shaped cross section, wherein an elastic lip 2 and a metal skeleton 3 with a T-shaped cross section are adhered to a groove of the metal shell 1, the elastic lip 3 is in a right trapezoid shape in a natural state, an inclined side of the elastic lip is in an arc shape and comprises a mounting portion and a sealing portion, the mounting portion is located at one side of the groove of the metal shell, the sealing portion extends out of the groove of the metal shell, the metal skeleton is mounted at the bottom of the other side of the groove and contacts with a long side wall of the mounting portion, a metal lip 4 is adhered to an inner protrusion of the metal skeleton 3, the metal lip 4 comprises a mounting head and a sealing head, the mounting head is located in the groove, the sealing head extends out of the groove, the sealing head is in an isosceles triangle shape in a natural state, and the long side wall of the elastic lip is in an isosceles triangle shape, A first sealing filler 5 is arranged on a first groove formed between one side of the protrusion of the metal framework and one side of the metal lip body, a second sealing filler 6 is arranged on a second groove formed by the other side of the metal lip body, the other side of the protrusion of the metal framework and one inner side wall of the metal shell, and the sealing filler does not extend out of the groove of the metal shell.
In a natural state, the inner circle diameter s1 of the elastic lip body is 5-10% smaller than the nominal diameter D of the metal combined dust ring, and the inner circle diameter s2 of the metal lip body is 5-10% smaller than the nominal diameter D of the combined dust ring; the inner diameter s3 of the sealing filler and the metal shell is 5-10% larger than the nominal diameter D of the metal combined dust ring, so that the sealing performance of the dust ring can be enhanced, and the whole body has a certain abrasion compensation function; the vulcanization between the sealing filler and the metal shell is firm; the nominal diameter of the metal composite dust ring is equal to the diameter of the installed piston rod part.
The metal shell is made of stainless steel, the metal lip body is made of tin bronze alloy, and the elastic lip body is made of fluororubber with Shore hardness of A70-A75 and tensile strength of 15 Mpa.
The clearance between the metal shell 1 and the installed piston rod 10 is 2-5mm, and when the piston rod slightly deforms, the piston rod cannot be directly scraped with the metal shell of the metal combined dust ring to scratch the piston rod due to the clearance.
In order to ensure that the elastic lip body does not collapse after being stressed during the reciprocating motion of the piston rod and ensure the sealing effect, the reliable adhesion of the elastic lip body and the metal shell needs to be ensured, and the bonding process of the metal shell and the elastic lip body is as follows: the metal shell is firstly folded into an L shape through a metal plate, the inner surface of the metal shell is coated with a tackifying promoter, and the surface of the metal shell is dried by heating; and then coating bisphenol AF fluororubber vulcanized coating in a spraying or curtain coating mode, installing the elastic lip body on the bent side, baking and heating to volatilize a coating solvent to achieve primary curing, finally transferring the metal shell and the elastic lip body into a blast oven to vulcanize for 1-3 hours at the high temperature of 250 ℃ for 150-.
And repeating the process to vulcanize and adhere the sealing filler, the framework support and the metal lip body together, placing the adhered assembly close to the elastic lip body with reference to fig. 1, bending the metal plate on the outer side again to form a U shape, and integrally coating and forming.
The working principle is as follows: when the piston rod moves linearly in a reciprocating mode, solid hazardous wastes such as oil sludge, polluted soil, asphalt, metal debris, ice particles and the like stuck on the piston rod are firstly scraped by the metal dust scraping lip of the dust ring, and the rest liquid or fine solids are scraped by the elastic dust scraping lip.
The metal combined dust ring has a single-action special dust ring with a scraping effect when a piston rod moves leftwards in a figure 2, the elastic lip body and the metal lip body have good stability in a metal shell, no foaming and dropping phenomena exist after the elastic lip body and the metal lip body are soaked in engine oil with the SAE viscosity value of 10W/30 at 170 ℃ for 70 hours, and no foaming and dropping phenomena exist; strong liquid corrosion resistance, water at 100 ℃ and antifreeze 1: after the reaction lasts for 72 hours in 1, the product does not fall off; the metal lip body has the tensile strength of 215Mpa, the Brinell hardness of HB685, the corrosion speed of less than 0.03mm/a when contacting with hazardous waste materials, and strong corrosion resistance; the metal lip body has high tensile strength and good elasticity, and is more wear-resistant than the conventional dustproof ring; the dust ring has certain deformation amount capable of rebounding, so that the guiding performance is ensured, the slight deformation of the piston rod can be self-adapted, and the scraping effect is also ensured after the piston rod is deformed.
Claims (7)
1. The utility model provides a metal combination dust ring in useless field of danger which characterized in that: the sealing device comprises a metal shell with a U-shaped section, wherein an elastic lip body and a metal framework with a T-shaped section are bonded on a groove of the metal shell, the elastic lip body is in a right trapezoid shape in a natural state, an inclined edge of the elastic lip body is in an arc shape, the elastic lip body comprises a mounting part and a sealing part, the mounting part is positioned at one side part of the groove of the metal shell, the sealing part extends out of the groove of the metal shell, the metal framework is mounted at the bottom of the other side part of the groove and is in contact with the long side wall of the mounting part, a metal lip body is bonded on an inner bulge of the metal framework, the metal lip body comprises a mounting head and a sealing head, the mounting head is positioned in the groove, the sealing head extends out of the groove, the sealing head is in an isosceles triangle shape in a natural state, a first sealing filler is arranged on a first groove formed among the long side wall of the elastic lip body, the bulge side of the metal framework and one side of the metal lip body, and a second sealing filler is arranged on a second groove formed by the other side of the metal lip body, the other side of the protrusion of the metal framework and one inner side wall of the metal shell, and the sealing filler does not extend out of the groove of the metal shell.
2. The metal combined dust ring in the hazardous waste field according to claim 1, wherein: the metal shell is made of stainless steel, the metal lip body is made of tin bronze alloy, and the elastic lip body is made of fluororubber with Shore hardness of A70-A75 and tensile strength of 15 Mpa.
3. The metal combined dust ring in the hazardous waste field according to claim 2, wherein: in a natural state, the inner circle diameter of the elastic lip body is 5-10% smaller than the nominal diameter of the metal combined dust ring, and the inner circle diameter of the metal lip body is 5-10% smaller than the nominal diameter of the metal combined dust ring.
4. The metal combined dust ring in the hazardous waste field according to claim 3, wherein: under the natural state, the inner diameters of the sealing filler and the metal shell are 5-10% larger than the nominal diameter of the metal combined dust ring.
5. The metal combined dust ring in the hazardous waste field according to any one of claims 1 to 4, wherein: after the metal combined dust ring is installed in a press fit mode, the metal lip body and the elastic body lip of the metal combined dust ring are tightly attached to the piston rod, and a gap of 2-5mm is reserved between the metal shell and the piston rod.
6. The metal combined dust ring in the hazardous waste field according to claim 1, wherein: the bonding process of the metal shell and the elastic lip body is as follows: firstly, folding the metal shell into an L shape, coating a tackifying promoter on the inner surface of the metal shell, and heating to dry the surface of the metal shell; and then coating bisphenol AF fluororubber vulcanized coating in a spraying or curtain coating mode, installing the elastic lip body on the bent side, baking and heating to volatilize a coating solvent to achieve primary curing, finally transferring the metal shell and the elastic lip body into a blast oven to vulcanize for 1-3 hours at the high temperature of 250 ℃ for 150-.
7. The metal combined dust ring in the hazardous waste field according to claim 6, wherein: the metal framework, the metal lip body ring, the first sealing filler and the second sealing filler are fluidized and bonded together, then are placed on the elastic lip body, the metal plate on the outer side is bent again to form a U-shaped coating, and finally the metal framework, the metal lip body ring, the first sealing filler and the second sealing filler are installed on the piston rod in a press-fit mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110894890.5A CN113551038A (en) | 2021-08-05 | 2021-08-05 | Metal combination dust ring in dangerous useless field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110894890.5A CN113551038A (en) | 2021-08-05 | 2021-08-05 | Metal combination dust ring in dangerous useless field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113551038A true CN113551038A (en) | 2021-10-26 |
Family
ID=78105305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110894890.5A Pending CN113551038A (en) | 2021-08-05 | 2021-08-05 | Metal combination dust ring in dangerous useless field |
Country Status (1)
| Country | Link |
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| CN (1) | CN113551038A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0235273A (en) * | 1988-07-22 | 1990-02-05 | Sakagami Seisakusho:Kk | Sealing device |
| JPH02110760U (en) * | 1989-02-22 | 1990-09-05 | ||
| CN204961827U (en) * | 2015-08-31 | 2016-01-13 | 江苏泓彦塑料制品有限公司 | Metal framework dust ring |
| CN207213167U (en) * | 2017-09-20 | 2018-04-10 | 天台亚耐气动密封件有限公司 | A kind of piston rod sealing ring |
| CN209511115U (en) * | 2018-09-21 | 2019-10-18 | 广州机械科学研究院有限公司 | A kind of piston rod dustband |
| CN210769634U (en) * | 2019-09-27 | 2020-06-16 | 迈特密封科技(广州)有限公司 | Hydraulic cylinder sealing ring and hydraulic cylinder |
| CN215891115U (en) * | 2021-08-05 | 2022-02-22 | 北京恩萨工程技术有限公司 | Metal combination dust ring in dangerous useless field |
-
2021
- 2021-08-05 CN CN202110894890.5A patent/CN113551038A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0235273A (en) * | 1988-07-22 | 1990-02-05 | Sakagami Seisakusho:Kk | Sealing device |
| JPH02110760U (en) * | 1989-02-22 | 1990-09-05 | ||
| CN204961827U (en) * | 2015-08-31 | 2016-01-13 | 江苏泓彦塑料制品有限公司 | Metal framework dust ring |
| CN207213167U (en) * | 2017-09-20 | 2018-04-10 | 天台亚耐气动密封件有限公司 | A kind of piston rod sealing ring |
| CN209511115U (en) * | 2018-09-21 | 2019-10-18 | 广州机械科学研究院有限公司 | A kind of piston rod dustband |
| CN210769634U (en) * | 2019-09-27 | 2020-06-16 | 迈特密封科技(广州)有限公司 | Hydraulic cylinder sealing ring and hydraulic cylinder |
| CN215891115U (en) * | 2021-08-05 | 2022-02-22 | 北京恩萨工程技术有限公司 | Metal combination dust ring in dangerous useless field |
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