CN202360198U - Exhaust and noise elimination system of engine - Google Patents
Exhaust and noise elimination system of engine Download PDFInfo
- Publication number
- CN202360198U CN202360198U CN2011204794416U CN201120479441U CN202360198U CN 202360198 U CN202360198 U CN 202360198U CN 2011204794416 U CN2011204794416 U CN 2011204794416U CN 201120479441 U CN201120479441 U CN 201120479441U CN 202360198 U CN202360198 U CN 202360198U
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- Prior art keywords
- silencing apparatus
- rocking arm
- outlet pipe
- sphere
- vehicle frame
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Abstract
The embodiment of the utility model provides an exhaust and noise elimination system of an engine. The system comprises an exhaust pipe, a muffler and a rocker, wherein the exhaust pipe is in spherical connection with the muffler, the upper end of the rocker is connected with a frame by a cylindrical hinge, the rocker can swing around the connection point of the rocker and the frame, the lower end of the rocker is connected with the muffler by a cylindrical hinge, and the muffler can swing around the connection point of the lower end of the rocker and the muffler. The muffler provided by the embodiment of the utility model can swing in two freedom degrees, and effectively reduce the influence of the engine vibration on the exhaust pipe, so that the breakage of the exhaust pipe is avoided.
Description
Technical field
The utility model relates to vehicle motor and forms the systems technology field, relates in particular to a kind of engine exhaust sound-attenuating system.
Background technique
The complex system that vehicle engine system is made up of a plurality of mechanism part and subtense angle; Subtense angle generally includes oil-fired system, gas handling system, exhaust elimination system, lubrication system, cooling system, and wherein: the effect of exhausting silencer system is the waste gas of engine air in-cylinder combustion is derived outside the car body.Fig. 1 shows a kind of exhausting silencer system of the prior art; This system comprises and the rigidly connected outlet pipe 11 of engine exhaust port; Be articulated in assemblies such as silencing apparatus 12 and tailpipe on the vehicle frame; Outlet pipe 11 is tightly connected through graphite grazing cover 13 with silencing apparatus 12, and the outer folder hoop 14 that is provided with of graphite grazing cover clamps.The waste gas of engine cylinder combustion gets into outlet pipe by relief opening, is transmitted to silencing apparatus through outlet pipe again, through discharging car body by tailpipe after the noise abatement of silencing apparatus.The vibration that produces during engine operation; There is certain relative movement between each parts of vehicle exhaust sound-attenuating system; Relative movement amplitude size depends on motor amplitude and watt level, if the relative movement between parts is excessive, with the working life that has a strong impact on component.In order to reduce the adverse effect of engine luggine to parts property examined and car load travelling comfort, the point of contact at motor and car body is provided with rubber cushion cover usually.Yet; Although this mode has weakened relative movement between parts to the influence of exhausting silencer system; But because outlet pipe and motor are rigidly connected, silencing apparatus directly is articulated on the vehicle frame; Be fixedly connected through the graphite grazing cover between outlet pipe and the silencing apparatus, the vibration of motor still causes breaking of outlet pipe easily.
The model utility content
In view of this; The utility model embodiment's purpose is to provide a kind of new engine exhaust sound-attenuating system; This exhausting silencer system rationally improves the annexation of respectively forming between the assembly in the existing technology; And then solve the influence of engine luggine to the exhausting silencer system outlet pipe, avoid outlet pipe to break.
The engine exhaust sound-attenuating system that the utility model embodiment provides comprises outlet pipe, silencing apparatus and rocking arm, and said outlet pipe is connected with the silencing apparatus sphere; Said rocking arm upper end is connected on the vehicle frame through the cylinder articulated manner, and rocking arm can be around the tie point swing of rocking arm and vehicle frame, and said rocking arm lower end connects said silencing apparatus through the cylinder articulated manner, and silencing apparatus can be around the tie point swing of rocking arm lower end and silencing apparatus.
Preferably, said sphere connection specifically comprises: the sphere connecting end of said outlet pipe is outside spherical structure, and the sphere connecting end of said silencing apparatus is the inner spherical structure.
Preferably, the sphere connecting end of said outlet pipe and the silencing apparatus outside is respectively arranged with hanging hole, articulates spring between the said hanging hole.
Preferably, said exhausting silencer system also comprises the buffering gum cover, and said rocking arm upper end also is connected on the vehicle frame through the buffering adhesive cover.
The described technological scheme of the utility model embodiment has been carried out reasonable improvement to the traditional exhaust sound-attenuating system; In the joint of outlet pipe and silencing apparatus the sphere linkage structure is set; Being connected through rocker structure between silencing apparatus and car body realizes; the rocking arm upper end is connected on the vehicle frame through movable bolt, and the rocking arm lower end connects silencing apparatus through movable bolt.Compared with prior art; The utility model embodiment is owing to adopt sphere to be connected between outlet pipe and the silencing apparatus; Silencing apparatus is articulated on the vehicle frame through rocking arm, and when vibration appearred in engine operation, the stressed of outlet pipe was connected transmission through silencing apparatus with sphere between the outlet pipe; And two connecting ends that sphere connects can circumferentially be regulated around the centre of sphere, have weakened the vibration of importing silencing apparatus into; The silencing apparatus part is imported in remaining not absorbent vibration into, because silencing apparatus is connected with vehicle frame through rocking arm, silencing apparatus can obtain the swing of two degrees of freedom, and the one, silencing apparatus freely swings around rocking arm lower end and silencing apparatus tie point; The one, silencing apparatus and rocking arm integral body freely swing around the tie point of rocking arm and vehicle frame, thereby have further weakened the vibration that is delivered to the silencing apparatus part, and then have protected outlet pipe that extrusion fracture does not take place.In addition; Often there are the manufacturing accumulated error in outlet pipe and silencing apparatus joint in the existing technology; And embodiment's outlet pipe of the utility model adopts sphere to be connected with the silencing apparatus joint; Silencing apparatus can obtain to be enough to the regulated quantity of offset zero parts foozle and assembling accumulated error at the tie point place, thereby has guaranteed that assembling smoothly.
Description of drawings
Fig. 1 is the structural drawing of exhausting silencer system in the existing technology;
Fig. 2 is an embodiment's of the utility model a structural drawing;
Fig. 3 is the enlarged view of the said embodiment's of Fig. 2 spheric structure;
Fig. 4 is the utility model embodiment's an application scenarios figure.
Embodiment
The utility model embodiment rationally improves traditional exhausting silencer system, in the joint of outlet pipe and silencing apparatus the sphere linkage structure is set; The rocking arm upper end is connected on the vehicle frame through movable bolt; the rocking arm lower end is through movable bolt connection silencing apparatus; thus the absorption that the vibration of engine operation generation connects through sphere earlier; the absorption of two degrees of freedom of process silencing apparatus acquisition then, weakened the influence of engine luggine greatly to outlet pipe, solved the problem of outlet pipe easy-rupturing.
For goal of the invention, the technical characteristics that more is expressly understood the utility model, the utility model is explained further details again below in conjunction with accompanying drawing and practical implementation instance.
Referring to accompanying drawing 2 and Fig. 3; The engine exhaust sound-attenuating system that the utility model embodiment provides comprises outlet pipe 21, silencing apparatus 22 and rocking arm 23; Said outlet pipe 21 is connected with silencing apparatus 22 spheres; The sphere connecting end of said outlet pipe is outside spherical structure, and the sphere connecting end of said silencing apparatus is the inner spherical structure.Said rocking arm 23 upper ends are connected on the vehicle frame through the cylinder articulated manner; rocking arm can be around the tie point swing of rocking arm and vehicle frame; said rocking arm 23 lower ends connect said silencing apparatus 22 through the cylinder articulated manner, and silencing apparatus can be around the tie point swing of rocking arm lower end and silencing apparatus.Present embodiment, also is provided with spring and connects with outside the sphere of silencing apparatus is connected at outlet pipe, promptly outside the sphere connecting end of outlet pipe and silencing apparatus, is respectively arranged with hanging hole 24, articulates spring 25 between the hanging hole.
The working state process of the exhausting silencer system of present embodiment is: when vibration appears in engine operation; The stressed connection to silencing apparatus through silencing apparatus and sphere between the outlet pipe of outlet pipe partly transmits; Sphere linkage structure between silencing apparatus and the outlet pipe is through rotate the absorption portion vibration each other; The silencing apparatus part is imported in remaining not absorbent vibration into; And because silencing apparatus is connected with vehicle frame through rocking arm, silencing apparatus obtains the swing of two degrees of freedom, the one, and silencing apparatus freely swings around rocking arm lower end and silencing apparatus tie point; The one, silencing apparatus and rocking arm integral body freely swing around the tie point of rocking arm and vehicle frame, thereby the swing effect of remaining vibration through silencing apparatus further weakened.
The technological scheme of present embodiment has been carried out reasonable improvement to the traditional exhaust sound-attenuating system; In the joint of outlet pipe and silencing apparatus sphere linkage structure and spring connecting structure are set; Being connected through rocker structure between silencing apparatus and car body realizes; the rocking arm upper end is connected on the vehicle frame through movable bolt, and the rocking arm lower end connects silencing apparatus through movable bolt.Compared with prior art; The technological scheme that present embodiment adopts; At least can obtain following technique effect: (1) present embodiment is owing to adopt sphere to be connected between outlet pipe and the silencing apparatus, silencing apparatus is articulated on the vehicle frame through rocking arm, when vibrating appears in engine operation; The stressed of outlet pipe is connected in silencing apparatus part transmittance process with sphere between the outlet pipe through silencing apparatus; The circumferential regulating action of spheric structure and the swing of the integral body of silencing apparatus greatly weaken the influence of engine luggine to exhaust silencer system, and then have protected outlet pipe that extrusion fracture does not take place; (2) often there are the manufacturing accumulated error in outlet pipe and silencing apparatus joint in the existing technology; And the present embodiment outlet pipe adopts sphere to be connected with the silencing apparatus joint; Silencing apparatus adopts rocker structure with being connected of vehicle frame; Silencing apparatus can obtain to be enough to the regulated quantity of offset zero parts foozle and assembling accumulated error at the tie point place, thereby has guaranteed that assembling smoothly; (3) adopt between silencing apparatus and the outlet pipe double-deck the connection, in be connected to the sphere linkage structure, the outer employing spring that connects can be realized not having the gap and follows and do not take place to destroy, and under spring action, guarantees sealing and air tight.
Outlet pipe is connected with the sphere that is connected between the silencing apparatus in the foregoing description, and the sphere connecting end of outlet pipe is outside spherical structure, and the sphere connecting end of silencing apparatus is the inner spherical structure.In fact; Who is the inner spherical structure between outlet pipe and the silencing apparatus, who does not all hinder the realization of the goal of the invention of the utility model for outside spherical structure; Present embodiment is considered use habit, the assembling needs of real world applications occasion; Preferred above-mentioned outlet pipe is an external ball property structure, and silencing apparatus is the capable structure of internal ball.
In the foregoing description in the joint of rocking arm and vehicle frame except that can directly being connected, can also connect through the buffering adhesive cover, promptly the rocking arm upper end is connected on the vehicle frame through the buffering adhesive cover.The buffering gum cover can replenish the vibration in the non-longitudinal plane on the one hand, can also isolate the transfer of vibration between silencing apparatus and the vehicle frame on the other hand, thereby further optimize the foregoing description.
Fig. 4 shows the application scenarios of the utility model.In this application scenarios, the left side is the cross-section structure of motor among the figure, and 2 of A, B contacting with vehicle frame at motor are provided with rubber cushion cover, can play the partial buffer effect to the vibration of motor.The C point is the tie point of outlet pipe and silencing apparatus, and this tie point adopts the dual link structure, and promptly internal layer is the sphere linkage structure, and skin is a spring connecting structure.The D point is rocking arm upper end and the tie point of vehicle frame, and the E point is the tie point between rocking arm lower end and the silencing apparatus, and silencing apparatus obtains the swing degrees of freedom 2 of D, E thus, realizes further shock absorption thus.Not only solve the problems of the prior art, also obtained good aforesaid other effects.
The above is merely the preferred embodiment of the utility model, and is in order to restriction the utility model, not all within the spirit and principle of the utility model, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection domain of invention.
Claims (4)
1. an engine exhaust sound-attenuating system is characterized in that, this system comprises: outlet pipe (21), silencing apparatus (22) and rocking arm (23), and said outlet pipe (21) is connected with said silencing apparatus (22) sphere; Said rocking arm (23) upper end is connected on the vehicle frame through the cylinder articulated manner; rocking arm can be around the tie point swing of rocking arm and vehicle frame; said rocking arm (23) lower end connects said silencing apparatus (22) through the cylinder articulated manner, and silencing apparatus can be around the tie point swing of rocking arm lower end and silencing apparatus.
2. exhausting silencer system according to claim 1 is characterized in that, said sphere connects and specifically comprises: the sphere connecting end of said outlet pipe (21) is outside spherical structure, and the sphere connecting end of said silencing apparatus (22) is the inner spherical structure.
3. exhausting silencer system according to claim 1 is characterized in that, said outlet pipe (21) is respectively arranged with hanging hole (24) with the sphere connecting end outside of said silencing apparatus (22), articulates spring (25) between the said hanging hole (24).
4. according to any one described exhausting silencer system in the claim 1 to 3, it is characterized in that said exhausting silencer system also comprises the buffering gum cover, said rocking arm upper end also connects vehicle frame through the buffering adhesive cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204794416U CN202360198U (en) | 2011-11-25 | 2011-11-25 | Exhaust and noise elimination system of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204794416U CN202360198U (en) | 2011-11-25 | 2011-11-25 | Exhaust and noise elimination system of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202360198U true CN202360198U (en) | 2012-08-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204794416U Expired - Lifetime CN202360198U (en) | 2011-11-25 | 2011-11-25 | Exhaust and noise elimination system of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202360198U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104948285A (en) * | 2015-06-17 | 2015-09-30 | 安徽力诺机械制造有限公司 | Forklift high exhaust pipe stable fixture |
| CN105313678A (en) * | 2014-07-22 | 2016-02-10 | 万国卡车知识产权有限公司 | Cab-mounted exhaust pipe de-coupler |
| CN108458183A (en) * | 2018-04-17 | 2018-08-28 | 珠海霄鹰科技发展有限公司 | Articulated type versatile exhausting pipe |
-
2011
- 2011-11-25 CN CN2011204794416U patent/CN202360198U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105313678A (en) * | 2014-07-22 | 2016-02-10 | 万国卡车知识产权有限公司 | Cab-mounted exhaust pipe de-coupler |
| CN105313678B (en) * | 2014-07-22 | 2018-04-06 | 万国卡车知识产权有限公司 | Blast pipe solution idol device on driver's cabin |
| CN104948285A (en) * | 2015-06-17 | 2015-09-30 | 安徽力诺机械制造有限公司 | Forklift high exhaust pipe stable fixture |
| CN104948285B (en) * | 2015-06-17 | 2018-01-30 | 孙美玲 | A kind of high exhaust pipe of forklift truck consolidates fixture |
| CN108458183A (en) * | 2018-04-17 | 2018-08-28 | 珠海霄鹰科技发展有限公司 | Articulated type versatile exhausting pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120801 |