CN101994836A - Sealing device of vacuum moving element - Google Patents
Sealing device of vacuum moving element Download PDFInfo
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- CN101994836A CN101994836A CN2010102800624A CN201010280062A CN101994836A CN 101994836 A CN101994836 A CN 101994836A CN 2010102800624 A CN2010102800624 A CN 2010102800624A CN 201010280062 A CN201010280062 A CN 201010280062A CN 101994836 A CN101994836 A CN 101994836A
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Abstract
The invention provides a sealing device of a vacuum moving element, which comprises a moving element and a sealing ring matched with the moving element, wherein the inner hole wall of the sealing ring, matched with the moving element, is provided with a plurality of annular storing slots; the inner hole wall and the storing slots are all provided with sealing grease layers or lubricant layers; the outer wall of the sealing ring is provided with a plurality of outer ring slots; a sealing circle is embedded into each outer ring slot; and the sealing circles are matched with the sealing inner wall of a cavity body. The sealing device has the bidirectional sealing property, in particular the sealing of excellent sealing property in the frequent large-travel reciprocating motion for a long time under the vacuum or high pressure difference conditions; the inner hole wall of the sealing ring is provided with the storing slots capable of storing a certain amount of sealing grease or lubricant to effectively supplement the sealing grease or the lubricant taken way by the motion of the moving element so as to maintain the excellent sealing property at the same time of reducing motion resistance; and the pretightening force is supplied through the deformation of the sealing circle, the sealing circle can supplement the abrasion of the sealing ring, and thus, the service life of the sealing ring is prolonged.
Description
Technical field
The present invention relates to seal arrangement, particularly a kind of vacuum movement parts seal arrangement.
Background technique
The effect of seal arrangement is to prevent leakage or gas leakage, is mainly used in fields such as high-pressure liquid sealing, piston seal, vacuum seal, and the seal arrangement major part of using is a seal ring now.At present, Chang Yong seal ring has O type circle, V-type circle etc.Traditional V-type circle can only provide one-way sealing property.General O type circle can only provide simple sealing, because structural reason causes sealing effect poor, working life is shorter.Particularly under the situation of sealed sliding dynamic component, easily because reasons such as cracking cause seal failure.
And seal arrangement also usually is applied to the sealing of moving element, as vacuum cock etc., for the sealing of these moving elements, generally is to realize its sealing by be coated with seal gease in the seal ring of an annular.Because the internal surface of seal ring is smoother, piston for big stroke, the long stroke motion of piston rod, the seal gease that piston rod will be adhered on it is at an easy rate taken away, cause the seal gease in the seal ring to reduce easily, cause poorly sealedly, cause cavity gas leakage or leakage, have a strong impact on its sealing effect; Simultaneously, vacuum movement parts in the equipment of industrial product or the miscellaneous equipment are when running without interruption for a long time, above moving element seal arrangement is owing to can not get lubricated fully, its seal ring or seal wears are bigger, cause sealability to descend, and resistance to motion increases simultaneously, cause equipment performance to descend, therefore need often to change, have a strong impact on its working efficiency, increase cost.Therefore moving element sealing at present generally runs into an awkward problem: if promptly consider from improving sealability, wish seal ring be subjected to bigger pressure, combine with moving element tightr, but can increase the resistance of moving element motion like this, reduce equipment operating efficiency, because seal gease can not get replenishing in real time, cause sealability to descend rapidly simultaneously.If consider from improving exercise performance, wish that seal ring is subjected to less pressure, combine looselyr with moving element, still be very easy to cause moving element sealability in movement process to descend rapidly like this.The two class materials of the general employing of moving element seal arrangement at present.One class is to adopt flexible rubber, macromolecule and flexible metal materials such as (as fine copper), this class material is owing to have the excellent elasticity deformability, can be by the effect of cooperation of the size between each parts and seal chamber inside and outside differential pressure, play good seal action, but wear-resisting, greasy property is not good, the motion of moving element is easy to generate inhibition.Another kind of is to adopt harder material relatively, as polyester, plastics, nylon etc., this class material has good wear-resisting and greasy property usually, can make moving element durable and resistance to motion is little, process is smooth-going, but because this class elastic properties of materials deformability is not strong, be difficult for producing pretightening force, make sealing effect relatively poor relatively.
Application number for the Chinese invention patent of " 200810156681.5 " disclose a kind of cylinder piston rod sealing configuration it comprise piston rod, cylinder cap, piston rod is installed in cylinder cap, back-up ring, U-shaped Sealing and O type circle are housed on the piston rod successively, O shape circle adopts the high-abrasive material teflon with self-lubricating function to make, and the U-shaped Sealing adopts the high-abrasive material teflon with self-lubricating function to make; U type Sealing shaped design is the U type, in the U type dead slot spring is arranged, sealing part is designed to zigzag fashion to increase seal pressure, the sum of errors wearing and tearing that circumstance of temperature difference causes are compensated by spring, though this structure can satisfy seal request to a certain extent, its structure more complicated and be not suitable for the sealing of big stroke motion parts.Application number discloses a kind of piston seal ring structure for the Chinese utility model patent of " 200820029687.1 ", it has comprised several parts, piston groove on the cylinder, one is piston ring, one is O type circle, has two or more circular-arc compensating grooves on the outer cylindrical working surface of its piston ring, and O type circle is arranged between piston ring and the piston ring groove, little duct is arranged in the piston ring, and the elasticity of O circle can be so that piston ring sealing still after mild wear be better.Application number discloses the back clearance sealed piston ring that a kind of internal-combustion engine is used for the Chinese utility model patent of " 99228011.7 ", what this model utility related to is the back clearance sealed piston ring that is used on the internal combustion engine, be provided with the radial seal ring between its compression ring back of the body and the piston ring groove bottom land cylindrical, its radial seal ring is can be the U type, the radial seal ring is separated the space sealing of compression ring and piston ring groove, and strengthened the elastic force of compression ring ring body, strengthened piston seal.Application number discloses a kind of multi-sealed device for the Chinese invention patent of " 200810055727.4 ", it is made of several parts, include the sealing block of a plurality of seal ring mounting grooves, the cross section is the hollow sealing circle of n shape, on its column working groove is arranged, lead in the hollow sealing circle, this invention has withstand voltage, leaks little characteristics, but because this device slit is many, under vacuum state, work, be easier to take place leak in the gas.Though above structure can reach sealing effect to a certain extent, all exist complex structure, wear and tear greatly, need defectives such as often replacing and the easy loss of seal lubrication material, be not suitable for the sealing of big stroke large-size motion parts.
Summary of the invention
The shortcoming that the objective of the invention is to overcome above-mentioned prior art provides a kind of and both can store seal gease or oiling agent with not enough, has the vacuum movement parts seal arrangement of good sealability and exercise performance again.
For reaching above-mentioned purpose, the present invention adopts following technological scheme: vacuum movement parts seal arrangement, comprise moving element and the seal ring that is mated, have the holding tank of some roads ring-type on described seal ring and the inner hole wall that moving element cooperates, inner hole wall and holding tank all have seal gease layer or lubricant layer; The outer wall of seal ring is provided with some roads outer groove, all is embedded with seal ring in each outer groove, and seal ring cooperates with cavity sealing inwall.
Also be provided with polytetrafluorethylecoatings coatings between described inner hole wall, holding tank and seal gease layer or the lubricant layer.
The shape of cross section of described holding tank is rectangle, trapezoidal, triangle, semicircle or irregular curve.
The shape of cross section of described outer groove is rectangle, trapezoidal, triangle, semicircle or irregular curve.
As preferably, each outer groove is embedded with one or more seal rings.
Spacing between two whenever adjacent outer groove peripheral edges is 0.1mm～100mm; Spacing between two whenever adjacent holding tank peripheral edges is 0.1mm～100mm.
The shape of cross section of described seal ring and the shape of cross section of seal ring are circle, ellipse or irregular curve.
The material of described seal ring is the good rubber of wear-resisting property, plastics or polyester material, is preferably hydrogenated nitrile-butadiene rubber, FFKM, fluorine unpigmented rubber, neoprene, natural rubber, teflon, polyurethane, polypropylene, polyethylene, phenolic plastic, PVC, nylon, polyoxymethylene, PPO or organo-silicon compound; And the material of seal ring adopts the rubber of excellent spring, is preferably nitrile butadiene rubber, hydrogenated nitrile-butadiene rubber, silicone rubber, fluorine unpigmented rubber, ethylene propylene diene rubber, neoprene, butyl rubber, natural rubber, FFKM or organo-silicon compound.
Described moving element is sliding bar or dwang, and sliding bar is preferably piston rod.
As preferably, the internal diameter of described seal ring size is 0.5mm～1000mm, and the internal diameter size of seal ring is 1mm～1200mm.
The shape of seal ring and seal ring and the shape of cross section of moving element are consistent, and the shape of cross section of moving element is preferably circle or ellipse, and the shape of seal ring and the shape of seal ring also correspondingly are circular or oval.
The individual number average of described seal ring and outer groove is preferably 1～100; The number of described holding tank is 1～100.
The present invention can be used for large-sized vacuum hotpressing machine etc., also can be used for the sealing of vacuum rotatable parts etc., such as is used for the shutter Spin Control of the sputtering target in the magnetron sputtering.The present invention also can be used on the sealing of moving element in the seal arrangements such as pressurized gas, highly pressurised liquid.
Working principle of the present invention: during use, at the inner hole wall and the holding tank of seal ring seal gease layer or lubricant layer are arranged all, put moving element (as sliding bar etc.), can realize vacuum seal, seal ring material adopts good plastics or the polyester of wear-resisting property.When seal wears, by having the distortion of elastic seal ring, seal ring is inwardly pushed away, reach the effect of wear compensation.Seal ring can prolong seal durability as the compensating unit of sealing part abrasion, and a plurality of seal rings can be so that sealing effect be better, and compensating action is more even.In big stroke motion, seal gease or oiling agent can flow in the holding tank along the inner hole wall of seal ring and store, and run off to avoid seal gease or oiling agent, and guaranteeing has abundant seal gease or oiling agent, and do not need often to replenish seal gease or oiling agent.
Compared with prior art, the present invention has following advantage and beneficial effect:
1, the present invention stores certain seal gease or oiling agent by holding tank, can prevent effectively that seal gease or oiling agent that moving element will adhere on it from taking away, and reduces resistance to motion and keeps excellent sealing ability simultaneously.
2, the present invention provides pretightening force by the deformation of seal ring, can wear and tear by the compensation sealing ring, can prolong seal durability, and a plurality of seal ring can be so that sealing effect be better, and compensating action is more even.
3, the present invention has the two way sealed performance, and compressive region is wide, and sealing effect is good, under the long service life, particularly vacuum or the sealing that has the excellent sealing performance in the long-time frequent large stroke reciprocating under the High Pressure Difference condition.
4, holding tank of the present invention can be stored seal gease or oiling agent, in big stroke vacuum cock motion, guarantees to have abundant seal gease or oiling agent in seal ring, and does not need often to replenish seal gease or oiling agent.
5, seal ring of the present invention is provided with a plurality of holding tanks, makes and the area of contact minimizing of moving element, can effectively reduce friction, and increases the service life.
6, the present invention adopts the material with soft, hard two kinds of different performance features simultaneously, makes apparatus of the present invention possess good wear-resisting, the lubrication property of traditional hard seal arrangement simultaneously, and the excellent sealing characteristic of flexible seal device.
Description of drawings
Fig. 1 is the structural representation that apparatus of the present invention cooperate with moving element.
Fig. 2 is the structural representation of apparatus of the present invention.
Fig. 3 is the plan view of device shown in Figure 2.
Fig. 4 is the plan view of seal ring shown in Figure 2.
Fig. 5 is the cross sectional representation of seal ring shown in Figure 2.
Fig. 6 is the structural representations of apparatus of the present invention in embodiment 2.
Fig. 7 is the structural representation of the seal ring of apparatus of the present invention in embodiment 3.
Fig. 8 is the structural representation of the seal ring of apparatus of the present invention in embodiment 4.
Fig. 9 is the structural representation of the seal ring of apparatus of the present invention in embodiment 5.
Figure 10 is the structural representation of the seal ring of apparatus of the present invention in embodiment 6.
Figure 11 is the structural representation of the seal ring of apparatus of the present invention in embodiment 7.
Embodiment
The present invention is described in further detail below in conjunction with embodiment and accompanying drawing, but embodiments of the present invention are not limited thereto.
Embodiment 1
Fig. 1～Fig. 5 shows the concrete structure figure of present embodiment, as shown in Figure 1, the seal ring 3 that reality air transport dynamic component seal arrangement comprises moving element 1 and is mated, have the holding tank 8 of four road ring-types on the inner hole wall of the endoporus 7 that cooperates with moving element 1 of described seal ring 3, inner hole wall and holding tank 8 all have seal gease layer 2; The outer wall of seal ring 3 is provided with four road outer grooves 9, all is embedded with seal ring 4 in each outer groove 9, and seal ring 4 cooperates with cavity sealing inwall 5.
As Fig. 2 and shown in Figure 4, the shape of cross section of described holding tank 8 is trapezoidal.
The shape of cross section of described outer groove 9 is semicircle.
Each outer groove 9 is embedded with a seal ring 4.
Spacing between two whenever adjacent outer groove peripheral edges is 10mm, and the spacing between two whenever adjacent holding tank peripheral edges is 10mm.
As shown in Figure 5, the shape of cross section of the shape of cross section of described seal ring 3 and seal ring 4 all is circular.
The material of described seal ring 3 is a hydrogenated nitrile-butadiene rubber, and the material of seal ring 4 is a nitrile butadiene rubber.
Described moving element 1 is a sliding bar, and sliding bar is a piston rod.
The internal diameter size of described seal ring 3 is 300mm, encircles high 100mm, and the internal diameter size of seal ring 4 is 400mm.
As shown in Figure 3, the shape of the shape of seal ring 4 and seal ring 3 is circle.The shape of cross section of moving element 1 is circular.
During use, the top of this device also is connected with fixed plate 6.
The number of seal ring 4 is the same with the number of outer groove 9, all is 4.
Working principle of the present invention: during use, be equipped with seal gease layer 2, put moving element 1, can realize vacuum seal on the inner hole wall and holding tank 8 surfaces of the endoporus 7 of seal ring 3.When seal ring 3 wearing and tearing, self the resiliently deformable by seal ring 4 inwardly pushes away seal ring 3, reaches the effect of wear compensation.Seal ring 4 can prolong seal durability as the compensating unit of sealing part abrasion, and a plurality of seal rings 4 can be so that sealing effect be better, and compensating action is more even.In big stroke motion, seal gease or oiling agent can flow to storage in the holding tank 8 along the inner hole wall of seal ring 3, run off to avoid seal gease, and guaranteeing has abundant seal gease, and do not need often to replenish seal gease.
The present invention can be used for the large-sized vacuum hotpressing machine.
The ultimate vacuum of vacuum hotpressing machine on the market all is no more than 1 * 10
-4Pa.The TH-VRY60-20 type vacuum hotpressing machine that the favourable Science and Technology Ltd. in sky, Tianjin produces, its ultimate vacuum is 1.0 * 10
-3Pa (cold conditions); The ultimate vacuum of the ZRYS series vacuum heating-press sintering stove that Shneyang Weitai Science and Technology Development Co., Ltd. produces is 2 * 10
-3Pa; The shine together ultimate vacuum of the TH-VRY series vacuum heating-press sintering stove that industrial furnace Co., Ltd produces of Hunan is 6.7 * 10
-3Pa.Using the large-sized vacuum hotpressing machine of this device (3 meters of vacuum cavity height, 3 meters of width, 3 meters of length, hot pressing shank diameter 30cm), its hotpress ultimate vacuum 5 * 10
-5Pa, the degree of vacuum during work can bring up to 1.0 * 10
-4Pa, sealing effect is good.
Present embodiment removes other structures of following characteristics with embodiment 1: as shown in Figure 6, the surface of described inner hole wall, holding tank 8 also is provided with polytetrafluorethylecoatings coatings 10.
The material of described seal ring 3 is a FFKM, and the material of described seal ring 4 is a silicone rubber.
Present embodiment removes other structures of following characteristics with embodiment 1: have the holding tank 8 of seven road ring-types on the inner hole wall of the endoporus 7 that cooperates with moving element 1 of described seal ring 3, inner hole wall and holding tank 8 all have seal gease layer 2; The outer wall of seal ring 3 is provided with four road outer grooves 9, all is embedded with seal ring 4 in each outer groove 9, and seal ring 4 cooperates with cavity sealing inwall 5.
As shown in Figure 7, the shape of cross section of described holding tank 8 is a rectangle, and the length of side is 5mm.
The shape of cross section of described outer groove 9 is semicircle.
Spacing between two whenever adjacent holding tank peripheral edges is 2mm, and the spacing between two whenever adjacent outer groove peripheral edges also is 2mm.
The shape of cross section of the shape of cross section of described seal ring 3 and seal ring 4 is circular.
The material of described seal ring 3 is a polyurethane, and the material of described seal ring 4 is a hydrogenated nitrile-butadiene rubber.
The internal diameter size of described seal ring 3 is 1mm, and the internal diameter size of seal ring 4 is 2mm.
Present embodiment removes other structures of following characteristics with embodiment 1: have the holding tank 8 of four road ring-types on the inner hole wall of the endoporus 7 that cooperates with moving element 1 of described seal ring 3, inner hole wall and holding tank 8 all have seal gease layer 2; The outer wall of seal ring 3 is provided with four road outer grooves 9, all is embedded with seal ring 4 in each outer groove 9, and seal ring 4 cooperates with cavity sealing inwall 5.
As shown in Figure 8, the shape of cross section of described holding tank 8 is semicircle.
The shape of cross section of described outer groove 9 is semicircle.
Spacing between two whenever adjacent holding tank peripheral edges is 3mm, and the spacing between two whenever adjacent outer groove peripheral edges is 5mm.
The shape of cross section of the shape of cross section of described seal ring 3 and seal ring 4 all is circular.
The material of described seal ring 3 is a neoprene, and the material of described seal ring 4 is a natural rubber.
Embodiment 5
Present embodiment removes other structures of following characteristics with embodiment 1: as shown in Figure 9, the shape of cross section of described holding tank 8 be a semicircle.
The shape of cross section of described outer groove 9 is a rectangle.
Spacing between two whenever adjacent holding tank peripheral edges is 3mm, and the spacing between two whenever adjacent outer groove peripheral edges is 5mm.
The shape of cross section of the shape of cross section of described seal ring 3 and seal ring 4 all is circular.
The material of described seal ring 3 is a teflon, and the material of described seal ring 4 is an ethylene propylene diene rubber.
Embodiment 6
Present embodiment removes other structures of following characteristics with embodiment 1: as shown in figure 10, the shape of cross section of described holding tank 8 is trapezoidal.
The shape of cross section of described outer groove 9 is trapezoidal.
Spacing between two whenever adjacent holding tank peripheral edges is 3mm, and the spacing between two whenever adjacent outer groove peripheral edges is 5mm.
The shape of cross section of the shape of cross section of described seal ring 3 and seal ring 4 all is oval.
The material of described seal ring 3 is a polyurethane, and the material of described seal ring 4 is a neoprene.
The shape of the shape of seal ring 4 and seal ring 3 is ellipse.
The shape of cross section of moving element 1 is oval.
Present embodiment removes other structures of following characteristics with embodiment 1: have the holding tank 8 of six road ring-types on the inner hole wall of the endoporus 7 that cooperates with moving element 1 of described seal ring 3, inner hole wall and holding tank 8 all have seal gease layer 2; The outer wall of seal ring 3 is provided with four road outer grooves 9, all is embedded with seal ring 4 in each outer groove 9, and seal ring 4 cooperates with cavity sealing inwall 5.
As shown in figure 11, the shape of cross section of described holding tank 8 is a rectangle.
The shape of cross section of described outer groove 9 is a rectangle.
Spacing between two whenever adjacent holding tank peripheral edges is 3mm, and the spacing between two whenever adjacent outer groove peripheral edges is 5mm.
The shape of cross section of the shape of cross section of described seal ring 3 and seal ring 4 all is irregular arc.
The material of described seal ring 3 is a nylon material, and the material of described seal ring 4 is the fluorine unpigmented rubber.
Present embodiment removes other structures of following characteristics with embodiment 1: have the holding tank 8 of twice ring-type on the inner hole wall of the endoporus 7 that cooperates with moving element 1 of described seal ring 3, inner hole wall and holding tank 8 all have seal gease layer 2; The outer wall of seal ring 3 is provided with twice outer groove 9, all is embedded with seal ring 4 in each outer groove 9, and seal ring 4 cooperates with cavity sealing inwall 5.
The shape of cross section of the shape of cross section of described holding tank 8 and outer groove 9 is irregular curve.
Spacing between two whenever adjacent holding tank peripheral edges is 50mm, and the spacing between two whenever adjacent outer groove peripheral edges is 50mm.
The shape of cross section of the shape of cross section of described seal ring 3 and seal ring 4 all is an irregular curve.
The material of described seal ring 3 is a polyoxymethylene, and the material of described seal ring 4 is a butyl rubber.
Present embodiment removes other structures of following characteristics with embodiment 1: have the holding tank 8 of twice ring-type on the inner hole wall of the endoporus 7 that cooperates with moving element 1 of described seal ring 3, inner hole wall and holding tank 8 all have seal gease layer 2; The outer wall of seal ring 3 is provided with twice outer groove 9, all is embedded with seal ring 4 in each outer groove 9, and seal ring 4 cooperates with cavity sealing inwall 5.
Spacing between two whenever adjacent holding tank peripheral edges is 0.5mm, and the spacing between two whenever adjacent outer groove peripheral edges is 1mm.
The internal diameter size of described seal ring is 5mm, and the internal diameter size of seal ring is 6mm.
The material of described seal ring 3 is a PVC, and the material of described seal ring 4 is a natural rubber.
Present embodiment removes other structures of following characteristics with embodiment 1: described inner hole wall and holding tank surface are equipped with lubricant layer, promptly adopt lubricant layer to replace the seal gease layer.
Described moving element is a dwang.
Present embodiment can be used for the sealing of vacuum rotatable parts, such as is used for the shutter Spin Control of the sputtering target in the magnetron sputtering.
The material of described seal ring 3 is phenolic plastic, and the material of described seal ring 4 is a FFKM.
Embodiment 11
Present embodiment removes other structures of above-mentioned feature with embodiment 1: described inner hole wall and holding tank surface are equipped with lubricant layer, promptly adopt lubricant layer to replace the seal gease layer.The material of described seal ring 3 is the fluorine unpigmented rubber, and the material of described seal ring 4 is a hydrogenated nitrile-butadiene rubber.
Owing to select for use resistance to chemical attack matter material, present embodiment to can be used for the sealing of moving element in the seal arrangement such as highly pressurised liquid.
Embodiment 12
Present embodiment removes other structures of following characteristics with embodiment 1: the shape of cross section of the shape of cross section of described holding tank 8 and outer groove 9 is triangle.
Spacing between two whenever adjacent outer groove peripheral edges is 0.5mm; Spacing between two whenever adjacent holding tank peripheral edges is 0.5mm.
The material of described seal ring 3 is a polypropylene, and the material of described seal ring 4 is a butyl rubber.
Present embodiment can be used on the sealing of moving element in the pressurized gas seal arrangement.
Embodiment 13
Present embodiment removes other structures of following characteristics with embodiment 1: have the holding tank 8 of 100 road ring-types on the inner hole wall of the endoporus 7 that cooperates with moving element 1 of described seal ring 3, inner hole wall and holding tank 8 all have seal gease layer 2; The outer wall of seal ring 3 is provided with 100 road outer grooves 9, all is embedded with seal ring 4 in each outer groove 9, and seal ring 4 cooperates with cavity sealing inwall 5.
Spacing between two whenever adjacent outer groove peripheral edges is 100mm; Spacing between two whenever adjacent holding tank peripheral edges is 100mm.
The material of described seal ring 3 is a natural rubber, and the material of described seal ring 4 is a butyl rubber.
The internal diameter size of described seal ring 3 is 900mm, and the internal diameter size of seal ring 4 is 1000mm.
The number of described seal ring and outer groove is consistent, also is 100.
Spacing between two whenever adjacent outer groove peripheral edges is 0.1mm; Spacing between two whenever adjacent holding tank peripheral edges is 0.1mm.
Embodiment 14
Present embodiment removes other structures of following characteristics with embodiment 1: have the holding tank 8 of ring-type on the inner hole wall of the endoporus 7 that cooperates with moving element 1 of described seal ring 3, inner hole wall and holding tank 8 all have seal gease layer 2; The outer wall of seal ring 3 is provided with outer groove 9 one, all is embedded with seal ring 4 in each outer groove 9, and seal ring 4 cooperates with cavity sealing inwall 5.
The material of described seal ring 3 is a PPO, and the material of described seal ring 4 is a butyl rubber.
The number of described seal ring and outer groove is consistent, also is 1.
Embodiment 15
Present embodiment removes other structures of following characteristics with embodiment 1: the material of described seal ring 3 is organo-silicon compound, and the material of described seal ring 4 is a butyl rubber.
Each outer groove 9 is embedded with two seal rings 4, and the number of seal ring 4 is 8.
Embodiment 16
Present embodiment removes other structures of following characteristics with embodiment 1: the material of described seal ring 3 is a polyethylene, and the material of described seal ring 4 is organo-silicon compound.
Each outer groove 9 is embedded with four seal rings 4, and the number of seal ring 4 is 16.
Embodiment 17
Present embodiment removes other structures of following characteristics with embodiment 1: the internal diameter size of described seal ring 3 is 0.5mm, and the internal diameter size of seal ring 4 is 1mm.
Embodiment 18
Present embodiment removes other structures of following characteristics with embodiment 1: the internal diameter size of described seal ring 3 is 1000mm, and the internal diameter size of seal ring 4 is 1200mm.
The foregoing description is a preferred implementation of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under spirit of the present invention and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (9)
1. vacuum movement parts seal arrangement, comprise moving element and the seal ring that is mated, it is characterized in that: have the holding tank of some roads ring-type on described seal ring and the inner hole wall that moving element cooperates, inner hole wall and holding tank all have seal gease layer or lubricant layer; The outer wall of seal ring is provided with some roads outer groove, all is embedded with seal ring in each outer groove, and seal ring cooperates with cavity sealing inwall.
2. vacuum movement parts seal arrangement according to claim 1 is characterized in that: also be provided with polytetrafluorethylecoatings coatings between described inner hole wall, holding tank and seal gease layer or the lubricant layer.
3. vacuum movement parts seal arrangement according to claim 1 and 2 is characterized in that: the shape of cross section of described holding tank is rectangle, trapezoidal, triangle, semicircle or irregular curve.
4. vacuum movement parts seal arrangement according to claim 1 and 2 is characterized in that: the shape of cross section of described outer groove is rectangle, trapezoidal, triangle, semicircle or irregular curve.
5. vacuum movement parts seal arrangement according to claim 1 and 2 is characterized in that: the spacing between two whenever adjacent outer groove peripheral edges is 0.1mm～100mm; Spacing between two whenever adjacent holding tank peripheral edges is 0.1mm～100mm.
6. vacuum movement parts seal arrangement according to claim 1 and 2 is characterized in that: the shape of cross section of described seal ring and the shape of cross section of seal ring are circle, ellipse or irregular curve.
7. vacuum movement parts seal arrangement according to claim 1 and 2 is characterized in that: the material of described seal ring is hydrogenated nitrile-butadiene rubber, FFKM, fluorine unpigmented rubber, neoprene, natural rubber, teflon, polyurethane, polypropylene, polyethylene, phenolic plastic, PVC, nylon, polyoxymethylene, PPO or organo-silicon compound; The material of described seal ring is nitrile butadiene rubber, hydrogenated nitrile-butadiene rubber, silicone rubber, fluorine unpigmented rubber, ethylene propylene diene rubber, neoprene, butyl rubber, natural rubber, FFKM or organo-silicon compound.
8. vacuum movement parts seal arrangement according to claim 1 and 2 is characterized in that: described moving element is sliding bar or dwang.
9. vacuum movement parts seal arrangement according to claim 1 and 2 is characterized in that: the internal diameter size of described seal ring is 0.5mm～1000mm, and the internal diameter size of seal ring is 1mm～1200mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102800624A CN101994836A (en) | 2010-09-10 | 2010-09-10 | Sealing device of vacuum moving element |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102800624A CN101994836A (en) | 2010-09-10 | 2010-09-10 | Sealing device of vacuum moving element |
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| CN101994836A true CN101994836A (en) | 2011-03-30 |
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| CN102829189A (en) * | 2012-08-15 | 2012-12-19 | 攀钢集团江油长城特殊钢有限公司 | Lubrication and leaking stoppage method for dynamic seal of high-vacuum equipment |
| CN102852851A (en) * | 2012-09-02 | 2013-01-02 | 新乡市天智冶金机械设备有限公司 | Diversion sealer for fan of cooling tower |
| CN103899750A (en) * | 2014-04-13 | 2014-07-02 | 福建亚南电机有限公司 | Internal compression seal ring of two-gear planet gearbox of pure electric vehicle through axle |
| CN104747725A (en) * | 2015-01-30 | 2015-07-01 | 柳州市莫尔斯汽配制造有限公司 | O-shaped seal ring |
| CN105299231A (en) * | 2015-11-10 | 2016-02-03 | 中国工程物理研究院激光聚变研究中心 | Vacuum rotation sealing device |
| CN107383489A (en) * | 2017-09-23 | 2017-11-24 | 安徽福斯特铝制品股份有限公司 | A kind of bearing sealed ring of automotive hub |
| CN107488318A (en) * | 2016-06-13 | 2017-12-19 | 温州市友联机械制造有限公司 | A kind of Beverage filling machine sealing ring and its manufacture method |
| CN109307101A (en) * | 2018-12-11 | 2019-02-05 | 南通亚威机械制造有限公司 | A kind of sealing structure with pressure valve |
| CN109357074A (en) * | 2018-12-11 | 2019-02-19 | 南通亚威机械制造有限公司 | A kind of sealing structure of powder valve with pressure |
| CN109611560A (en) * | 2018-12-11 | 2019-04-12 | 南通亚威机械制造有限公司 | A kind of sealing structure of shaft end |
| CN110238260A (en) * | 2019-05-17 | 2019-09-17 | 长沙理工大学 | A kind of sheet metal multistage cylinder drawing and forming device and technique |
| CN110375128A (en) * | 2019-07-01 | 2019-10-25 | 格力电器（合肥）有限公司 | A kind of valve and air-conditioning |
| CN110725690A (en) * | 2019-11-13 | 2020-01-24 | 中国铁建重工集团股份有限公司 | Novel sealing ring for main drive of shield tunneling machine and preparation method thereof |
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| CN102494140A (en) * | 2011-12-27 | 2012-06-13 | 北京隆轩橡塑有限公司 | Protective sleeve for polymer elastic dust guard seat for axle |
| CN102829189A (en) * | 2012-08-15 | 2012-12-19 | 攀钢集团江油长城特殊钢有限公司 | Lubrication and leaking stoppage method for dynamic seal of high-vacuum equipment |
| CN102829189B (en) * | 2012-08-15 | 2014-12-10 | 攀钢集团江油长城特殊钢有限公司 | Lubrication and leaking stoppage method for dynamic seal of high-vacuum equipment |
| CN102852851A (en) * | 2012-09-02 | 2013-01-02 | 新乡市天智冶金机械设备有限公司 | Diversion sealer for fan of cooling tower |
| CN103899750A (en) * | 2014-04-13 | 2014-07-02 | 福建亚南电机有限公司 | Internal compression seal ring of two-gear planet gearbox of pure electric vehicle through axle |
| CN103899750B (en) * | 2014-04-13 | 2017-01-11 | 福建亚南电机有限公司 | Internal compression seal ring of two-gear planet gearbox of pure electric vehicle through axle |
| CN104747725A (en) * | 2015-01-30 | 2015-07-01 | 柳州市莫尔斯汽配制造有限公司 | O-shaped seal ring |
| CN105299231A (en) * | 2015-11-10 | 2016-02-03 | 中国工程物理研究院激光聚变研究中心 | Vacuum rotation sealing device |
| CN107488318A (en) * | 2016-06-13 | 2017-12-19 | 温州市友联机械制造有限公司 | A kind of Beverage filling machine sealing ring and its manufacture method |
| CN107383489A (en) * | 2017-09-23 | 2017-11-24 | 安徽福斯特铝制品股份有限公司 | A kind of bearing sealed ring of automotive hub |
| CN109307101A (en) * | 2018-12-11 | 2019-02-05 | 南通亚威机械制造有限公司 | A kind of sealing structure with pressure valve |
| CN109357074A (en) * | 2018-12-11 | 2019-02-19 | 南通亚威机械制造有限公司 | A kind of sealing structure of powder valve with pressure |
| CN109611560A (en) * | 2018-12-11 | 2019-04-12 | 南通亚威机械制造有限公司 | A kind of sealing structure of shaft end |
| CN110238260A (en) * | 2019-05-17 | 2019-09-17 | 长沙理工大学 | A kind of sheet metal multistage cylinder drawing and forming device and technique |
| CN110375128A (en) * | 2019-07-01 | 2019-10-25 | 格力电器（合肥）有限公司 | A kind of valve and air-conditioning |
| CN110725690A (en) * | 2019-11-13 | 2020-01-24 | 中国铁建重工集团股份有限公司 | Novel sealing ring for main drive of shield tunneling machine and preparation method thereof |
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Application publication date: 20110330 |