CN102099555B - Gasket for muffler, and muffler joint - Google Patents
Gasket for muffler, and muffler joint Download PDFInfo
- Publication number
- CN102099555B CN102099555B CN200980101082.6A CN200980101082A CN102099555B CN 102099555 B CN102099555 B CN 102099555B CN 200980101082 A CN200980101082 A CN 200980101082A CN 102099555 B CN102099555 B CN 102099555B
- Authority
- CN
- China
- Prior art keywords
- baffler
- packing ring
- wire netting
- sealing material
- netting material
- 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.)
- Active
Links
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
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/12—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering
- F16J15/121—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering with metal reinforcement
- F16J15/126—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering with metal reinforcement consisting of additions, e.g. metallic fibres, metallic powders, randomly dispersed in the packing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
- F01N13/1811—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
- F01N13/1827—Sealings specially adapted for exhaust systems
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Gasket Seals (AREA)
- Exhaust Silencers (AREA)
Abstract
Provided are a gasket for a muffler, having mechanical strength and sealing ability which do not degrade even if the gasket is used for a long period of time in a use environment subjected to a frequent occurrence of vibration, and a muffler joint. A gasket (1) for a muffler is provided with a metallic mesh material (3) expanded in a flat plane, and also with a band-like seal material (5) layered on the metallic mesh material (3) so as to overlap with the metallic mesh material (3) in a part of the range of the metallic mesh material in the longitudinal direction (Y) thereof. The metallic mesh material (3) and the seal material (5) are compressed in the axis direction (G) in a state in which the metallic mesh material (3) and the seal material (5) are rolled in the width direction (X). By this, the gasket (1) is formed in a state in which the gasket (1) is split in the axis direction (G) into a hard layer (7) consisting only of the metallic mesh material (3) and a soft layer (9) consisting of the metallic mesh material (3) and the seal material (5). A metallic mesh material (3A) applied to a superposed section (11) at which the metallic mesh material (3) overlaps with the seal material (5) is formed so as to have a lower density than a metallic mesh material (3B) not included in the superposed section (11).
Description
Technical field
The present invention relates to for example, baffler joint for land vehicle (motorcycle, four-wheel sand buggy, snowmobile etc.), and relate to the baffler packing ring being contained in this baffler joint.Particularly, the present invention relates to baffler packing ring, it is for preventing that exhaust gas leakage has superior sealing effect and have superior clamping durability in vehicle movement, and relates to the baffler joint that is provided with this baffler packing ring.
Background technique
The baffler joint that has had some similar type, it has the structure (exhaust fitting) shown in patent documentation PTL1 below.Such exhaust fitting has inner tube, and internal diameter is slightly wider than the outer tube of inner tube external diameter.The end of outer tube has expanded to form larger-diameter parts.In annular space between inner tube and larger-diameter outer tube, packing ring is housed, and inner and outer tubes are positioned at outer tube outer periphery clamping band by tightening is firmly connected to each other.
Packing ring has drum, and it is by forming and be located at reinforcing material on inner periphery surface with stainless (steel) wire and forming around the expanded graphite that the outer periphery surface of reinforcing material covers.Expanded graphite has good heat resistance and chemical resistance, and low coefficient of friction, and can be by simply exerting pressure and form on it, and need not any bonding agent.Expanded graphite is flexible and easily deflection.
When waste gas streams is during through inner tube, due to the heat of waste gas, the volume of packing ring will increase.Because packing ring has above-mentioned good flexibility and flexural property, thereby the shape of packing ring can change preferably with inner tube and larger-diameter outer tube parts between the shape of annular space be consistent, the sealing effect of the connected element between inner and outer tubes is provided thus.
Reference listing
[patent documentation]
[PTL1] Japanese uncensored patent is announced No.Hei2-125907.
[PTL2] Japanese uncensored patent is announced No.2004-3604.
Summary of the invention
Technical problem
Recently, thereby the size of vehicle baffler is tending towards increasing and reduces exhaust noise, and catalysis device will be connected to reduce waste gas, so will be applied to for example point of the gripping members of baffler joint and the load component of baffler packing ring than heavier in the past load.Particularly, cross country motorcycle will be used on the rasping road having a lot of upward slope descendings, and the repeating to jolt the connected element between the inner and outer tubes of baffler is played to bad effect of road, for example, make vibration and warping force deterioration.
In this case, will the plastic deformation of baffler packing ring occur, and the expansion space at the connected element place between inner and outer tubes will worsen the sealing effect of baffler joint.In addition, due to rasping road repeat jolt, the clamping screw of clamping band will fluff, and will die down thus for connecting the clamping force of inner tube and outer tube.Therefore, the applicant has submitted the patent application as described in patent documentation PTL2 above to, by exhaust pipe gasket (wherein rigid metal net materials be used as stock be simultaneously minimized in the use region of inorganic material) is provided, the problems referred to above are prevented from.
When the utilization rate of wire netting material increases, mechanical strength will improve, and impact resistance also will improve thus, but deformation performance (changing the ability that shape is consistent with the shape of annular space as above with this) will suffer damage.In this case, because inner and outer tubes are manufactured by welding, dimensional accuracy and circularity will not be that perfectly the sealing effect of packing ring also will suffer damage.
On the other hand, when the utilization rate of expanded graphite increases, deformation performance (and thus sealing effect) will improve, but mechanical strength and impact resistance will suffer damage, and this will cause the problem that weakens clamping force again.
In view of the above problems, the object of this invention is to provide a kind of baffler packing ring, and a kind of baffler joint that is provided with this baffler packing ring, it has the violent long life machine intensity with repeating to jolt and vibrate of antagonism, thereby also there is defective dimensional accuracy and circularity that easily deformable performance meets connected element, and there is simple structure and good sealing effect.
Solution
To achieve these goals, the present invention proposes a kind of baffler packing ring of cylindrical shape, this baffler packing ring packs in the annular space of the connected element between the inner and outer tubes of baffler joint, by the clamping band that is connected to the outer periphery surface of outer tube, clamped, make the clamping force of clamping band can present sealing effect.This baffler packing ring be characterised in that following some.First, baffler packing ring is provided with the wire netting material elongating with plane shape, and is provided with the banded sealing material being stacked on wire netting material, and sealing material can be overlapped in a part for wire netting material on width direction.In addition, under the state of having rolled on width direction at wire netting material and sealing material, wire netting material and sealing material are pressed in the axial direction, form thus the hard formation of only being made by wire netting material, and form the soft formation of being made by wire netting material and sealing material, present the state that hard formation and soft formation separate in the axial direction.In addition, wire netting material is at the weaving density of weaving density other parts beyond overlapping part lower than wire netting material of the overlapping part of overlapping sealing material.
Preferably, the wire netting material as overlapping part forms with low weaving density by jumping one or several stitch when weaving Stainless Steel Wire.
Preferably, sealing material is at least located on a surface of wire netting material, and this surface appears on the outer periphery surface of baffler packing ring when being rolled into drum.
Preferably the sealing material that, the inner periphery surface of soft formation has presents the width substantially the same with the outer periphery surface of soft formation.
Preferably, sealing material is formed by the inorganic material that comprises expanded graphite.
Preferably by main component, be, that the thin layer that zirconic liquid inorganic material covers is formed on the surface of sealing material.
Preferably, thermal expansion inorganic material is medially present in the space between the layer of the wire netting material of rolling that is located in soft formation, and is at least present in the region of the sealing material on the outer periphery surface that is formed on wire netting material.
Preferably, sealing material is formed by thermal expansion inorganic material, and described thermal expansion inorganic material comprises pre-expanded graphite, heat resistance fiber and heat-resisting bonding agent.
The invention allows for a kind of baffler joint, comprising: outer tube, the connected element of this outer tube has the slit extending from end surfaces in the axial direction, and slit is located with regular intervals in a circumferential direction; Be connected to the inner tube of outer tube; Baffler packing ring, this baffler packing ring is arranged in for connecting the annular space of the outer tube connected element of inner tube; And clamping band, this clamping band is connected to the outer periphery surface of the connected element of outer tube.This baffler joint is characterised in that, baffler packing ring is baffler packing ring as above.
Preferably,, in baffler joint of the present invention, the soft formation which is provided with sealing material of baffler packing ring is positioned in the face of being formed on the position of the slit on outer tube.
Preferably,, in baffler joint of the present invention, clamping band is connected to the position in the face of hard formation and soft formation.
The present invention has following advantages.First, the hard formation of only being made by wire netting material forms with high weaving density, has superior mechanical strength and impact resistance.Therefore, when vehicle uses on rasping road, if any deterioration vibration or excessively warping force reapply to the position between inner and outer tubes, the superior impact resistance of hard formation can prevent the plastic deformation of baffler packing ring, and can prevent the risk of releasing orientation of the clamping screw of anchorage clip taut band.
Comprise and there is the wire netting material of low weaving density and the soft formation of sealing material has flexible nature.Therefore, even when the dimensional accuracy of inner and outer tubes and circularity is not while being perfect, soft formation can free deformation and applicable inner and outer tubes between the shape of annular space at connected element place, eliminated any gap between two pipes, can obtain superior sealing effect thus.In addition, because hard formation and soft formation form in the axial direction, separate, the corresponding effect of hard formation and soft formation is mutual noninterference, and every layer can manifest its character effectively.
When reducing the weaving density of wire netting material, wherein by jumping predetermined stitch, weave Stainless Steel Wire, the position that feasible is by being skipped at stitch is removed simply pin and is used common knitting machine, and cost manufacture that thus can be lower has the wire netting material of low weaving density.
In addition, object for overlapping sealing material on wire netting material, for the outer periphery surface of the baffler packing ring forming, when being provided with sealing material and making this sealing material can appear on the surface of wire netting material, the sealing effect between baffler packing ring and outer tube can improve.In addition, inner periphery surface for the baffler packing ring forming, when being provided with sealing material and making this sealing material can appear on the surface of wire netting material, the sealing effect between baffler packing ring and outer tube, and the sealing effect between baffler packing ring and inner tube all can improve.
When the width in the formation region of sealing material is substantially identical with the width between outer periphery with the inner periphery of soft formation, feasible is to manifest substantially the same sealing effect between inner tube side and outer tube side, so the sealing effect at the connected element place between inner and outer tubes can further improve.
When sealing material is formed by the inorganic material that comprises expanded graphite, feasible is by improving heat resistance and the low frictional properties of sealing material, the baffler packing ring with superior serviceability being provided.
When sealing material is thin layer that zirconic liquid inorganic material covers while forming by main component, thin layer has increased the elasticity of the outer surface of sealing material, will improve sealing effect thus.In addition, due to worsening the extra inhibition of vibration and warping force (its by because above-mentioned vibration is played bad effect to the connected element between inner and outer tubes), the plastic deformation of baffler packing ring can be further prevented, therefore sealing effect expectation and stable can be manifested for a long time.
When thermal expansion inorganic material be located between two parties sealing material form in the soft formation in region roll in the space between wire netting material layer time, the temperature of baffler packing ring raises the waste-gas heat due to through baffler, and this heat will make baffler packing ring expansion (thermal expansion inorganic material thus can not be got back to original-shape), then do not need by the unnecessary fastening process of the baffler packing ring of clamping band etc., bond effect between inner and outer tubes will strengthen, and it causes the sealing effect improving.In addition,, because do not need the excessive tightness of clamping band, can be beneficial to the assembling of baffler packing ring.
When sealing material is formed by the thermal expansion inorganic material that comprises pre-expanded graphite, heat resistance fiber and heat-resisting bonding agent, when owing to making through the waste-gas heat of baffler to raise around the temperature of the part of baffler packing ring, pre-expanded graphite is by rapid expanding and improve the sealing effect of baffler packing ring.In addition,, owing to comprising the heat resistance fiber (it mixes well with the heat-resisting bonding agent of for example rubber) of aramid fibre, can prevent that pre-expanded graphite particles is due to any explosive diffusion of rapid expanding.
When above-mentioned baffler gasket applications arrives baffler joint, due to baffler packing ring various effects as above, the raising of impact resistance and the raising of sealing effect, because baffler joint is realized, can improve the serviceability of the baffler joint using in serious vibration environment thus.
When baffler joint is assembled, at the soft formation which is provided with sealing material of baffler packing ring, be placed on when being formed on the position of the slit on outer tube, prevented that waste gas from leaking from slit, the sealing effect of baffler joint can further improve thus.
In addition, when above-mentioned baffler joint is assembled, in the time of on clamping band is connected in the face of the position of hard formation and soft formation, the corresponding effect of hard formation and soft formation will be worked in coordination with and be manifested, and the impact resistance of baffler joint and sealing effect can further improve thus.
Beneficial effect
According to baffler packing ring of the present invention and baffler joint, feasible is to obtain to have the violent long life machine intensity with repeating to jolt and vibrate of antagonism.Also feasible, thus easily deformable defective dimensional accuracy and the circularity that meets connected element of packing ring can improve sealing effect thus.In addition, above-mentioned advantage can be realized by simple structure, for example, to reduce the weaving density of wire netting material.
Accompanying drawing explanation
[Fig. 1] shows according to the braiding of the embodiment of the present invention to form the stereogram of the wire netting material of cast;
[Fig. 2] shows and weaves according to the embodiment of the present invention planimetric map that forms cast, then suppress and elongate to form plane shape;
[Fig. 3] shows the planimetric map according to the embodiment of the present invention, wherein under the overlapping in the longitudinal direction state of sealing material, the parts from the first side to the second side, with plane shape elongate metal net materials;
[Fig. 4] shows the planimetric map according to the embodiment of the present invention, wherein under the overlapping in the longitudinal direction state of sealing material, in the parts of the first side, with plane shape elongate metal net materials;
[Fig. 5] shows according to the stereogram of the state of the wire netting material of the embodiment of the present invention, and wherein overlapping sealing material is rolled;
[Fig. 6] shows according to the stereogram of the state of the wire netting material of the embodiment of the present invention, and wherein overlapping sealing material has rolled to form multilayer;
[Fig. 7] shows the stereogram of the state of wire netting material and sealing material, and it rolls to form multilayer, and suppressed to form reservation shape by press moulding machine;
[Fig. 8] (a) shows the planimetric map of molded according to an embodiment of the invention baffler packing ring; (b) show the sectional view cutting according to the line A-A of the planimetric map (a) by above of the present invention;
[Fig. 9] is according to the exploded perspective view of the baffler joint of the embodiment of the present invention;
[Figure 10] shows the sectional side view of the connected element of the baffler joint cutting in the Vertical direction of accompanying drawing according to an embodiment of the invention;
[Figure 11] shows the stereogram of the assembled state of baffler joint according to an embodiment of the invention;
[Figure 12] shows the stereogram that has respectively the three types baffler packing ring in different soft formations formation region according to of the present invention; And
[Figure 13] illustrates about product according to the present invention and according to the chart of the Results of Vibration of other two products of prior art.
Embodiment
Now with reference to the embodiment shown in Fig. 1 to 12, the present invention is discussed.
Have baffler packing ring 1, it has the planar metal net materials 3 stretching with plane shape, and on length direction Y with the overlapping sealing material that is band shape or strip 5 of a part for wire netting material 3.Wire netting material 3 and sealing material 5 are all used as the original material 27 of baffler packing ring 1.Original material 27 is rolled on width direction X, then on axial direction Z, suppresses, and can obtain thus the predetermined drum of baffler packing ring 1.
Baffler packing ring 1 has the hard formation 7 of only being made by wire netting material 3, and by wire netting material 3 and sealing material 5 the two soft formation of making 9, it separates on axial direction G.
According to embodiments of the invention, as shown in Figure 2, when braiding Stainless Steel Wire 13 is used the wire netting material 3A of the overlapping part 11 that acts on overlapping sealing material with formation, Stainless Steel Wire 13 alternately weaves to form stitch 15, and the stitch 17 of skipping (i.e. not braiding) is formed between stitch 15, wire netting material 3 can obtain low weaving density thus.
Banded sealing material 5 overlaps on the wire netting material 3 elongating with plane shape as above in the following manner: with respect to the wire netting material 3A as overlapping part 11, whole region on the width direction X of overlapping the first side 19 of sealing material 5, and almost half region the width direction X from one end 23 to central unit 25 of overlapping the second side 21, as shown in Figure 3.Obtain thus original material 27 as shown in Figure 3.
The feasible another kind of structure as shown in Figure 4 that is to provide also, wherein the sealing material 5 whole region on the width direction X of the first side 19 of the overlapping wire netting material 3A as overlapping part 11 only, can obtain another kind of original material 29 thus.
With reference to Fig. 7 or 8, the first sides 19, appear on the outer periphery surface of molded baffler packing ring 1, the second side 21 appears on the inner periphery surface of molded baffler packing ring 1.Therefore, when use as shown in Figure 3 original material 27 time, sealing material 5 appears on the outer periphery surface and inner periphery surface of molded baffler packing ring 1.In addition, as shown in Figure 6, the state lower mould in the space of sealing material 5 between the multilayer that is medially present in the wire netting material 3 of rolling.
When use as shown in Figure 4 original material 29 time, sealing material 5 only appears on the outer periphery surface of molded baffler packing ring 1, on the inner periphery surface of molded baffler packing ring 1, there is no sealing material 5.In addition, as shown in Figure 6, the state lower mould in the space of sealing material 5 between the multilayer that is medially present in the wire netting material 3 of rolling.
The formation region of soft formation 9 can at random be determined, for example shown in Figure 12 (a) since an end surfaces 39 on the central unit 41 at baffler packing ring 1 in the longer region of process, or in the region of the central unit 41 that arrives baffler packing ring 1 since an end surfaces 39 shown in Figure 12 (b).Therefore, the suitable formation region of soft formation 9 can be determined according to the baffler type that packing ring 1 is wherein housed.
In addition, as shown in Figure 12 (c), at the two ends of baffler packing ring 1, can there be two hard formations 7,7, in centre, can have a soft formation 9.Utilize this structure, can prevent joint noise reduction device packing ring 1 on the opposite way round.
In addition, sheet mica, ceramic fiber, molybdenum disulfide etc., also can be used as inorganic material as above.
It is the thin layer that zirconic liquid inorganic material covers that the surface of sealing material 5 can be provided with main component.
Liquid inorganic material has good heat resistance, for example, can resist the temperature that surpasses 1000 ℃, and in natural drying process, airborne moisture has strengthened polymerization, can form strong film layer thus.The preferred overlay area of liquid inorganic material can be on inner periphery surface 43, outer periphery surface 45 and an end surfaces 39, and it lays respectively at the end, inserting side of baffler packing ring 1, at this, forms soft formation 9.
When thin layer forms, occurring under the state of inorganic material, the baffler packing ring 1 of intended shape and size is molded.Then, region that will Covering Liguid inorganic material is immersed in liquid inorganic material solution, and carries out subsequently natural drying.Therefore, can obtain thin layer with this simple technique, and correspondingly can realize the remarkable reduction of cost of production.
Because increased elasticity by being located at the lip-deep thin layer of sealing material 5, so there is the sealing effect that the sealing material 5 of said structure has raising.In addition, because baffler packing ring 1 prevents from the bonus effect of plastic deformation from can maintaining for a long time stable sealing effect.
Thermal expansion inorganic material can be present in the space between the layer of rolling wire netting material 3 being located in soft formation 9 between two parties, is at least present in the region of the sealing material 5 on the outer periphery surface that is formed on wire netting material.
Thermal expansion inorganic material forms sheet, its before thermal expansion process by heat resistance fiber being added pre-expanded graphite prepare, and by using heat-resisting bonding agent to prepare.
The preferred example of heat resistance fiber can be inorfil or aramid fibre.And inorfil can be preferably artificial fiber, for example glass fibre, asbestos or ceramic fiber, still also can be used any natural mineral fibre.
As the preferred example of pre-expanded graphite, can there is the flaky graphite that obtains and have crystallographic property in physical environment, it uses acid treatment to add hot expansion property.The preferred example of heat-resisting bonding agent can be NBR, SBR, and acrylic rubber, silicone rubber, etc.
Thermal expansion inorganic material is the common used material of the heat insulator located of the doorframe (mating part) for fireproof door or for the fire-fighting quipment of the unit ventilators of loft, and has good heat resistance.Its character also having is: when object is around heated and when material changes to predetermined high temperature, material expand into 30 or 50 times of volume.
If the speed of expansion of pre-expanded graphite is too fast, it can cause the explosivity diffusion of pre-expanded graphite particles, but due to heat resistance fiber and good the mixing of heat-resisting bonding agent, speed of expansion is suppressed, and pre-expanded graphite particles will can explosive not spread thus.
Replace inorganic material, sealing material 5 self can form band shape by above-mentioned thermal expansion inorganic material.The sealing material 5 of this structure also can manifest the effect almost identical with the embodiment who uses inorganic material.Particularly, by improving the outer tube 53 of baffler joint 51 and the bonding between baffler packing ring 1, or improving the inner tube 55 of baffler joint 51 and the bonding between baffler packing ring 1, this structure can manifest the sealing effect (it is discussed in the back) for preventing the raising of exhaust gas leakage.
Baffler joint 51 according to the present invention for example comprises, is connected to the outer tube 53 of outlet pipe, is connected to the inner tube 55 of silencing apparatus, baffler packing ring 1 and clamping band 67.The connected element 57 of outer tube 53 is provided with slit 61, and it elongates and be also positioned in a circumferential direction regular intervals from end surfaces 59 on axial direction G.Baffler packing ring 1 is in the annular space 65 being formed between the connected element 57 of outer tube 53 and another connected element 63 of inner tube 55.Clamping band 67 is connected to the outer periphery surface of the connected element 57 of outer tube 53.
As shown in Figure 9 to 11, outer tube 53 has large diameter cylindrical body 69, and one end surfaces 71 is waited and is connected to connected element 57 by welding.Connected element 57 both ends opens, and its each diameter is less than the diameter of large diameter cylindrical body 69.
The top part with larger-diameter connected element 57 is provided with for example six slits of slit 61(), it is positioned parallel respectively, and has in a circumferential direction regular intervals, and from end surfaces 59, elongates on axial direction G.
Also shown in Figs. 9 to 11, inner tube 55 comprises the wide tubular part 77 of cylindrical shape, cylindrical shape and diameter are less than the connected element 63 of wide tubular part 77, and the shoulder part 79 also for example tilting a little between wide tubular part 77 and connected element 63.
Clamping band 67 comprises having the endless belt parts 83 that cut end, secure component 85, and clamping screw 87.Endless belt parts 83 are installed to the outer periphery surface of the connected element 57 of outer tube 53, and have the diameter larger than the external diameter of connected element 57.Secure component 85 cuts end by each of outwardly-bent endless belt parts 83 and forms.Clamping screw 87 is installed by use secure component 85, and for increasing the internal diameter with reducing endless belt parts 83.
As shown in figure 10, by end surfaces 93 contact outstanding ring 81 positions of hard formation 7, about inner tube 55, determine the mounting point of baffler packing ring 1, and by soft formation 9, in the face of being formed on the region of the slit 61 on outer tube 53, about outer tube 53, determine the mounting point of baffler packing ring 1.
Also as shown in figure 10, by facing the hard formation 7 of baffler packing ring 1 and the position of soft formation 9, determine the mounting point of clamping band 67.When baffler packing ring 1 and clamping band 67 are connected on this position, prevented that waste gas from leaking from slit 61, and the significant sealing affection of the mechanical strength of hard formation 7 and soft formation 9 manifests, can provide long-term fixing serviceability for baffler joint 51 thus.
Claimant has carried out vibration-testing in order to check the performance being provided with according to the baffler joint 51 of baffler packing ring 1 of the present invention, and its content and result are as follows.
In this vibration-testing, used vibration testing instrument (by Japanese (the IMV Corporation of IMV company, Japan) manufacture, model is No.i220/SA2), its vibrational excitation power is that 8KN(is sinusoidal wave), thus the product 1(that obtains prior art is according to patent documentation PTL1), the product 2(of prior art is according to patent documentation PTL2) with according to the comparing data between product of the present invention.
Vibration-testing completes under the following conditions: the tightening of clamping band (clamping) moment is 23Nm; The acceleration that is applied in vertical direction baffler joint is 49m/s
2; Vibration frequency is 16 to 335Hz(writing scans); Period is that 1000000(time of vibration is about 2.5h).Under this same terms, carried out three tests, be called the product 1 of prior art, the product 2 of prior art and according to product of the present invention, it has respectively identical size, and collects the average data of every kind of product.Measure the item is (5kPa and 25kPa) air leakage rate before vibration-testing and afterwards under two kinds of air pressure conditions, excess torque after vibration-testing (i.e. vibration apply after clamping force), and baffler packing ring maximum deformation quantity in the axial direction after vibration-testing.
As shown in the chart of Figure 13, compare with the product 1 of prior art, according to the product 2 of product of the present invention and prior art, all shown obvious little air leakage rate before vibration-testing and afterwards, high excess torque after vibration-testing, and baffler packing ring less maximum deformation quantity in the axial direction.
When comparing with the product 2 of prior art according to product of the present invention, the difference between two kinds of products is also be not as so obvious as the difference of comparing with the product 1 of prior art.Yet, according to product of the present invention, air leakage rate before vibration-testing and be afterwards less than prior art product 1 air leakage rate 70%, and compare with the product 1 of prior art, it is higher that excess torque becomes, and the maximum deformation quantity of the baffler packing ring after vibration-testing becomes less.
Therefore,, according to Results of Vibration, be clear that, due to the adaptive capacity to the raising on the overlapping surface of sealed member, can guarantee for a long time stable sealing effect, and due to clamping screw 87 lower unclamp risk and the less amount of deformation of baffler packing ring 1, its mechanical strength is superior.
According to baffler packing ring 1 of the present invention and baffler joint 51, be not limited to above-described embodiment disclosed, and can revise arbitrarily, as long as it falls in the scope of spirit of the present invention.For example, as shown in Figures 3 and 4, although each the distolateral cutting in a predetermined direction on the width direction X of the original material 27 of baffler packing ring 1 and 29, these sides also can cut on true dip direction arbitrarily.Utilize this structure, if any slit 61 forming on any distolateral and connected element 57 outer tube 53 of sealing material 5 is consistent, this consistent with occurring, can maintain stable sealing effect thus in distolateral whole length of sealing material 5.In addition, when baffler packing ring 1 packs in the annular space 65 between the connected element 57 of outer tube 53 and the connected element 63 of inner tube 55, positioning error in a circumferential direction can be prevented, the packaging efficiency of baffler joint 51 can be improved thus.
Baffler packing ring 1 can be provided with conical part 89,91, and it is respectively formed in outer end edges to insert outer tube 53, and in inner end edge to be inserted by inner tube 55, as shown in Fig. 8 and 10.When being provided with these conical parts 89,91 o'clock, can promote the insertion of 1 pair of outer tube 53 of baffler packing ring and inner tube 55, also can improve thus the packaging efficiency of baffler joint 51.
According to embodiments of the invention as above, baffler packing ring 1 has been prepared into banded sealing material 5 and has made by using, but also feasible be by wire netting material 3 is penetrated into wherein with pulverulence as original material 27 or 29(sealing material 5 with plane shape elongation) prepare baffler packing ring 1.In addition, when wire netting material 3 for example, forms by any technique (punching press) beyond braiding, also feasible is sealing material 5 to be added in advance to the raw material of wire netting material 3 before being pressed, and a part for wire netting material 3 can be used as sealing material 5 thus, its material compacting as a whole.
In addition, as in order to reduce the wire netting material 3 of another kind of form of the weaving density at overlapping part 11 places, also feasible is first to prepare wire netting material 3, it elongates with plane shape, and the stitch of not skipping about stitch 15, then any parts of wire netting material 3 can punching press out, can reduce weaving density thus by punching press.In addition, about following structure, wherein in braiding process, prepared the weaving density that the stitch 17 skipped reduces overlapping part 11 places of wire netting material 3 with this, the stitch 17 of skipping can be the form that a stitch is skipped or spininess pin is skipped.
Commercial Application
As mentioned above, according to baffler packing ring of the present invention and baffler joint, can be used in the occasion of manufacturing and using motorcycle silencer, and can be applicable to the situation that mechanical strength and sealing effect should maintain for a long time, in its Environmental Conditions, repetitive vibrations is applied to baffler.
Reference numerals list
1 baffler packing ring
3 wire netting materials
5 sealing materials
7 hard formations
9 soft formations
11 overlapping parts
13 Stainless Steel Wires
15 stitch (one or more)
17 stitch of skipping (one or more)
19 first sides
21 second sides
23 one end
25 central units
27 original materials
29 original materials
31 press moulding machinees
33 upper die toolings
35 bed dies
37 cavitys
39 1 end surfaces
41 central units
43 inner periphery surfaces
45 outer periphery surfaces
51 baffler joints
53 outer tubes
55 inner tubes
57 connected elements
59 end surfaces
61 slits
63 connected elements
65 annular spaces
67 clamping bands
69 large diameter cylinders
71 1 end surfaces
73 neck member
77 wide tubular parts
79 shoulder parts
81 outstanding rings
83 endless belt parts
85 secure components
87 clamping screws (one or more)
89 conical parts
91 conical parts
93 1 end surfaces
X width direction
Y length direction
G axial direction
Claims (11)
1. the baffler packing ring of a cylindrical shape, described baffler packing ring packs in the annular space of the connected element between the inner and outer tubes of baffler joint, by the clamping band that is connected to the outer periphery surface of described outer tube, clamped, make the clamping force of described clamping band can present sealing effect, it is characterized in that:
Described baffler packing ring is provided with the wire netting material elongating with plane shape, and is provided with the banded sealing material being stacked on described wire netting material, makes described sealing material can on width direction, overlap in a part for described wire netting material;
Under the state of having rolled on width direction at described wire netting material and described sealing material, described wire netting material and described sealing material are pressed in the axial direction, form thus the hard formation of only being made by described wire netting material, and form the soft formation of being made by described wire netting material and described sealing material, present the state that described hard formation and described soft formation separate on described axial direction; And
Described wire netting material is at the weaving density of weaving density other parts beyond described overlapping part lower than described wire netting material of the overlapping part of overlapping described sealing material.
2. baffler packing ring as claimed in claim 1, its feature is further, as the described wire netting material of described overlapping part, by jumping one or several stitch when the braiding Stainless Steel Wire, with low weaving density, forms.
3. baffler packing ring as claimed in claim 1 or 2, its feature is further, and it is upper that described sealing material is at least located at a surface of described wire netting material, and described surface appears on the outer periphery surface of described baffler packing ring when being rolled into drum.
4. baffler packing ring as claimed in claim 1 or 2, its feature is further, the described sealing material that the inner periphery surface of described soft formation has presents the width substantially the same with the outer periphery surface of described soft formation.
5. baffler packing ring as claimed in claim 1 or 2, its feature is further, described sealing material is formed by the inorganic material that comprises expanded graphite.
6. baffler packing ring as claimed in claim 1 or 2, its feature is further, by main component, is that the thin layer that zirconic liquid inorganic material covers is formed on the surface of described sealing material.
7. baffler packing ring as claimed in claim 1 or 2, its feature is further, thermal expansion inorganic material is medially present in the space between the layer of the wire netting material of rolling that is located in described soft formation, and is at least present in the region of the described sealing material on the outer periphery surface that is formed on described wire netting material.
8. baffler packing ring as claimed in claim 1 or 2, its feature is further, and described sealing material is formed by thermal expansion inorganic material, and described thermal expansion inorganic material comprises pre-expanded graphite, heat resistance fiber and heat-resisting bonding agent.
9. a baffler joint, comprising:
Outer tube, the connected element of described outer tube has the slit extending from end surfaces in the axial direction, and described slit is located with regular intervals in a circumferential direction;
Be connected to the inner tube of described outer tube;
Baffler packing ring, described baffler packing ring packs into for connecting the annular space of described connected element of the described outer tube of described inner tube; And
Clamping band, described clamping band is connected to the outer periphery surface of the described connected element of described outer tube,
It is characterized in that, described baffler packing ring is the baffler packing ring as described in any one in claim 1 to 8.
10. baffler joint as claimed in claim 9, is characterized in that, the soft formation which is provided with sealing material of described baffler packing ring is positioned in the face of being formed on the position of the slit on described outer tube.
11. baffler joints as described in claim 9 or 10, its feature is further, described clamping band is connected to the position in the face of hard formation and described soft formation.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2009/005219 WO2011042933A1 (en) | 2009-10-07 | 2009-10-07 | Gasket for muffler, and muffler joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102099555A CN102099555A (en) | 2011-06-15 |
| CN102099555B true CN102099555B (en) | 2014-03-12 |
Family
ID=43856438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200980101082.6A Active CN102099555B (en) | 2009-10-07 | 2009-10-07 | Gasket for muffler, and muffler joint |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5340400B2 (en) |
| CN (1) | CN102099555B (en) |
| WO (1) | WO2011042933A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5894768B2 (en) * | 2011-11-09 | 2016-03-30 | 日本ピラー工業株式会社 | Gland packing manufacturing method, gland packing and packing set |
| JP6396789B2 (en) * | 2014-12-24 | 2018-09-26 | 日本グラスファイバー工業株式会社 | Exhaust pipe fitting |
| CN106870730B (en) * | 2017-03-01 | 2018-04-03 | 张英华 | Screw extrusion continuous steam puffing machine quick open valve equipped with hydrostatic seal circle |
| CN110635303B (en) | 2019-08-16 | 2021-02-26 | 华为技术有限公司 | Gateway equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3054865B2 (en) * | 1998-10-28 | 2000-06-19 | トヨタ自動車株式会社 | Gasket for insertion flange |
| CN2557753Y (en) * | 2002-07-23 | 2003-06-25 | 高锡强 | All glu covered metal seal pad |
| CN2800028Y (en) * | 2004-12-14 | 2006-07-26 | 袁柏峰 | Sealing pad |
| JP4212914B2 (en) * | 2002-04-18 | 2009-01-21 | 浜松ガスケット株式会社 | Exhaust pipe gasket and exhaust pipe joint provided with the same |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02125907A (en) * | 1989-09-22 | 1990-05-14 | Honda Motor Co Ltd | Exhaust pipe coupling |
| JP3496364B2 (en) * | 1995-09-13 | 2004-02-09 | オイレス工業株式会社 | Exhaust pipe joint and method of manufacturing the same |
| JP3819073B2 (en) * | 1996-06-18 | 2006-09-06 | 株式会社ベスト | Seal body manufacturing method and seal body |
-
2009
- 2009-10-07 WO PCT/JP2009/005219 patent/WO2011042933A1/en active Application Filing
- 2009-10-07 JP JP2011535217A patent/JP5340400B2/en active Active
- 2009-10-07 CN CN200980101082.6A patent/CN102099555B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3054865B2 (en) * | 1998-10-28 | 2000-06-19 | トヨタ自動車株式会社 | Gasket for insertion flange |
| JP4212914B2 (en) * | 2002-04-18 | 2009-01-21 | 浜松ガスケット株式会社 | Exhaust pipe gasket and exhaust pipe joint provided with the same |
| CN2557753Y (en) * | 2002-07-23 | 2003-06-25 | 高锡强 | All glu covered metal seal pad |
| CN2800028Y (en) * | 2004-12-14 | 2006-07-26 | 袁柏峰 | Sealing pad |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5340400B2 (en) | 2013-11-13 |
| JPWO2011042933A1 (en) | 2013-02-28 |
| WO2011042933A1 (en) | 2011-04-14 |
| CN102099555A (en) | 2011-06-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102099555B (en) | Gasket for muffler, and muffler joint | |
| KR20080019154A (en) | Holding sealer and exhaust gas processing device | |
| JP5834806B2 (en) | Cylindrical gasket, manufacturing method thereof, and plug-in type exhaust pipe joint using the cylindrical gasket | |
| EP2789890A1 (en) | Spherical band-shaped seal body and production method therefor | |
| KR101056269B1 (en) | Yarn and gland packing | |
| EP2698566A1 (en) | Spherical seal member and method for manufacturing same | |
| US20130277965A1 (en) | Cylindrical gasket, method for manufacturing the same, and insertion-type exhaust pipe joint using the cylindrical gasket | |
| US5622372A (en) | Metal seal ring and a method of producing the same | |
| JP5894768B2 (en) | Gland packing manufacturing method, gland packing and packing set | |
| GB2327199A (en) | Manufacturing tubular packing | |
| JP2004003604A (en) | Gasket for exhaust pipe and exhaust pipe joint provided with the same | |
| JP7422628B2 (en) | flexible hose | |
| EP1541910A1 (en) | Material for gland packing and the gland packing | |
| JPH02125907A (en) | Exhaust pipe coupling | |
| US10591063B2 (en) | Spiral wound gasket | |
| EP2924323A1 (en) | Spherical band seal | |
| CN210890077U (en) | Metal winding sheet | |
| TWI453334B (en) | Muffler gasket and muffler joint | |
| JPH09317772A (en) | Sliding sheet member for high temperature | |
| CA2807118A1 (en) | Spherical annular seal member | |
| JPH029056Y2 (en) | ||
| WO2016157861A1 (en) | Cylindrical gasket, and insertion exhaust pipe joint using same | |
| EP0388766B1 (en) | Gasket material and method of manufacturing the same | |
| JPH11132337A (en) | Manufacture of seal ring | |
| JPH027215Y2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |