A noise reduction type three-way catalytic converter structure

Abstract

The present invention belongs to the technical field of three-way catalytic converter devices, and discloses a noise-reducing three-way catalytic converter structure. The technical key points are as follows: It includes a housing, a first ceramic carrier is fixedly installed in the inner cavity of the housing, a second ceramic carrier is slidably installed in the inner cavity of the housing on one side of the first ceramic carrier, an adjustment assembly cooperating with the second ceramic carrier is arranged in the inner cavity of the housing, a flow disturbance mechanism is arranged in the inner cavity of the housing between the first ceramic carrier and the second ceramic carrier, the flow disturbance mechanism includes a flow disturbance plate, a positioning assembly and a rotating assembly, and the rotating assembly includes a rotating part and a driving part, which solves the problem that at present, when automotive exhaust gas flows inside the ceramic carrier of the three-way catalytic converter, noise will be generated when the exhaust gas flows at high speed at the gaps in the ceramic carrier, affecting the use effect of the three-way catalytic converter.

Description

Technical Field

[0001] The present invention relates to the technical field of three-way catalytic converter devices, and specifically to a noise-reducing three-way catalytic converter structure. Background Technique

[0002] A three-way catalytic converter is the most important off-vehicle purification device installed in the automobile exhaust system. It can convert harmful gases such as CO, HC, and NOx discharged from automobile exhaust into harmless carbon dioxide, water, and nitrogen through oxidation and reduction. When high-temperature automobile exhaust passes through the purification device, the purifying agent in the three-way catalytic converter enhances the activity of the three gases of CO, HC, and NOx, prompting them to undergo a certain oxidation-reduction chemical reaction. Among them, CO is oxidized into colorless and non-toxic carbon dioxide gas at high temperature; HC compounds are oxidized into water and carbon dioxide at high temperature; NOx is reduced into nitrogen and oxygen. The three harmful gases become harmless gases, purifying the automobile exhaust.

[0003] When the three-way catalytic converter treats automobile exhaust, the automobile exhaust flows inside the ceramic carrier in the three-way catalytic converter. When the exhaust flows at high speed at the gaps in the ceramic carrier, certain noise will be generated, affecting the use effect of the three-way catalytic converter. Summary of the Invention

[0004] The purpose of the present invention is to provide a noise-reducing three-way catalytic converter structure to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solution:

[0006] A noise-reducing three-way catalytic converter structure includes a housing. One end of the housing is provided with an intake pipe, and the other end of the housing is provided with an exhaust pipe. A first ceramic carrier is fixedly installed in the inner cavity of the housing. A second ceramic carrier is slidably installed in the inner cavity of the housing on one side of the first ceramic carrier. An adjustment assembly is arranged in the inner cavity of the housing and is matched with the second ceramic carrier. The adjustment assembly is used to control the reciprocating movement of the second ceramic carrier in the inner cavity of the housing. A flow disturbance mechanism is arranged in the inner cavity of the housing between the first ceramic carrier and the second ceramic carrier. The flow disturbance mechanism includes flow disturbance plates, a positioning assembly, and a rotating assembly. A plurality of groups of flow disturbance plates are provided. The positioning assembly is located on the side wall of the first ceramic carrier and is connected to the flow disturbance plates. The positioning assembly is used to support and position the flow disturbance plates between the first ceramic carrier and the second ceramic carrier. The rotating assembly includes a rotating part and a driving part. The rotating part is located on the side wall of the first ceramic carrier and is connected to the positioning assembly. The driving part is located between the first ceramic carrier and the second ceramic carrier and is connected to the rotating part. The driving part controls the rotation of a plurality of groups of flow disturbance plates between the first ceramic carrier and the second ceramic carrier by cooperating with the rotating part.

[0007] As a further solution of the present invention: The adjusting assembly includes two groups of first brackets fixedly installed on the inner side wall of the housing. A first fixing plate is fixedly installed in the middle of the first bracket. A rotating column is rotatably installed by the two first fixing plates together. A fan blade is arranged at one end of the rotating column facing the intake pipe. Two groups of second brackets are fixedly installed on the inner side wall of the housing. A second fixing plate is fixedly installed in the middle of the second bracket. A vertical rod is rotatably installed by the two second fixing plates together. A first driven bevel gear disc is fixedly installed at the bottom end of the vertical rod. A first driving bevel gear disc is fixedly installed on the surface of the rotating column. The first driving bevel gear disc is meshed and connected with the first driven bevel gear disc. A control disc is fixedly installed at the top end of the vertical rod. A push-pull rod is rotatably installed at a position deviating from the center of the control disc on the surface of the control disc. The end of the push-pull rod away from the control disc is rotatably connected with the side wall of the second ceramic carrier.

[0008] As a further solution of the present invention: The positioning assembly includes a bearing column rotatably installed on the surface of the second ceramic carrier. A plurality of spoiler plates are fixedly installed in a ring on the surface of the bearing column. A through hole is formed inward on the surface of the bearing column.

[0009] As a further solution of the present invention: The rotating part includes a rotating rod rotatably installed on the surface of the second ceramic carrier. Synchronous gear discs are respectively fixedly installed on the surfaces of the rotating rod and the bearing column. The two synchronous gear discs are connected by a synchronous belt.

[0010] As a further solution of the present invention: The driving part includes a cross bar rotatably installed between the inner side walls of the housing. A telescopic column is fixedly installed on one side of the second ceramic carrier facing the bearing column. Tooth grooves are formed on the surface of the telescopic column. A fixed gear disc is fixedly installed on the surface of the cross bar. The fixed gear disc is meshed and connected with the tooth grooves. A second driving bevel gear disc is fixedly installed on the surface of the cross bar. A second driven bevel gear disc is fixedly installed at the end of the rotating rod. The second driven bevel gear disc is meshed and connected with the second driving bevel gear disc.

[0011] As a further solution of the present invention: A guide rod is fixedly installed on the inner side wall of the housing. The guide rod is slidably connected with the second ceramic carrier.

[0012] As a further solution of the present invention: Both the fan blade and the spoiler plates are made of heat-resistant materials.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: By arranging the adjusting component to cooperate with the second ceramic carrier, the relative position of the first ceramic carrier and the second ceramic carrier can be conveniently adjusted, and further, the flow state of the automotive exhaust gas in the first ceramic carrier and the second ceramic carrier can be changed, effectively reducing noise; By arranging the rotating component composed of a rotating part and a driving part to cooperate with the positioning component, the spoiler can be conveniently controlled to rotate between the first ceramic carrier and the second ceramic carrier, and the spoiler can change the flow velocity and flow trajectory of the automotive exhaust gas, further reducing the noise generated when the automotive exhaust gas flows. The problem that currently, when the automotive exhaust gas flows in the ceramic carrier inside the three-way catalytic converter and generates noise when flowing at high speed at the gaps in the ceramic carrier, affecting the use effect of the three-way catalytic converter is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 FIG. 6 is a schematic perspective view of a noise-reducing three-way catalytic converter structure provided in an embodiment of the present invention.

[0015] Figure 2 FIG. 10 is a schematic front view of a noise-reducing three-way catalytic converter structure provided in an embodiment of the present invention.

[0016] Figure 3 FIG. 14 is a schematic view of a second ceramic carrier and its connection structure in a noise-reducing three-way catalytic converter structure provided in an embodiment of the present invention.

[0017] Figure 4 FIG. 18 is a schematic view of a rotating part and its connection structure in a noise-reducing three-way catalytic converter structure provided in an embodiment of the present invention.

[0018] Figure 5 is Figure 3 an enlarged schematic view of A in FIG.

[0019] Figure 6 This Figure 4 is an enlarged schematic view of B in FIG.

[0020] Wherein: 1 - housing, 11 - intake pipe, 12 - exhaust pipe, 2 - first ceramic carrier, 3 - second ceramic carrier, 4 - adjustment assembly, 41 - first bracket, 42 - first fixing plate, 43 - rotating column, 44 - fan blade, 45 - second bracket, 46 - second fixing plate, 47 - vertical rod, 48 - first driven bevel gear disk, 49 - first driving bevel gear disk, 40 - control disk, 410 - push-pull rod, 5 - flow disturbance mechanism, 51 - flow disturbance plate, 52 - positioning assembly, 521 - bearing column, 522 - through hole, 53 - rotating assembly, 531 - rotating part, 5311 - rotating rod, 5312 - synchronous gear disk, 5313 - synchronous belt, 532 - driving part, 5321 - cross bar, 5322 - telescopic column, 5323 - tooth groove, 5324 - fixed gear disk, 5325 - second driving bevel gear disk, 5326 - second driven bevel gear disk, 6 - guide rod. Detailed implementation mode

[0021] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0022] The following describes in detail the specific implementation of the present invention in combination with specific embodiments.

[0023] As Figure 1 、 Figure 2 、 Figure 4 、 Figure 6 As shown in

[0024] During use, vehicle exhaust flows through the intake pipe 11 into the inner cavity of the housing 1. The vehicle exhaust passes through the second ceramic carrier 3 and the first ceramic carrier 2 in sequence, and then is discharged through the exhaust pipe 12. The second ceramic carrier 3 and the first ceramic carrier 2 can efficiently treat the vehicle exhaust. When the vehicle exhaust flows at a high speed in the inner cavity of the housing 1, the adjusting assembly 4 controls the second ceramic carrier 3 to reciprocate in the inner cavity of the housing 1, thereby conveniently adjusting the relative position between the first ceramic carrier 2 and the second ceramic carrier 3. The reciprocating movement of the second ceramic carrier 3 can change the flow state of the exhaust gas in the inner cavity of the housing 1 in real time, and can effectively reduce the noise generated when the exhaust gas flows in the first ceramic carrier 2 and the second ceramic carrier 3. When the second ceramic carrier 3 reciprocates, the rotating part 531 and the driving part 532 cooperate with each other to control the rotation of multiple groups of spoiler plates 51 outside the first ceramic carrier 2. The rotation of the spoiler plates 51 can further disrupt the flow velocity and flow trajectory of the exhaust gas, and further reduce the noise generated when the exhaust gas flows in the first ceramic carrier 2.

[0025] As Figure 1 、 Figure 2 、 Figure 5 As shown in, as a preferred embodiment of the present invention, the adjusting assembly 4 includes two groups of first brackets 41 fixedly installed on the inner side wall of the housing 1. A first fixing plate 42 is fixedly installed in the middle of the first bracket 41. A rotating column 43 is rotatably installed by two groups of first fixing plates 42 together. A fan blade 44 is arranged at one end of the rotating column 43 facing the intake pipe 11. Two groups of second brackets 45 are fixedly installed on the inner side wall of the housing 1. A second fixing plate 46 is fixedly installed in the middle of the second bracket 45. A vertical rod 47 is rotatably installed by two groups of second fixing plates 46 together. A first driven bevel gear disk 48 is fixedly installed at the bottom end of the vertical rod 47. A first driving bevel gear disk 49 is fixedly installed on the surface of the rotating column 43. The first driving bevel gear disk 49 is meshed and connected with the first driven bevel gear disk 48. A control disk 40 is fixedly installed at the top end of the vertical rod 47. A push-pull rod 410 is rotatably installed at a position deviating from the center of the control disk 40. One end of the push-pull rod 410 away from the control disk 40 is rotatably connected to the side wall of the second ceramic carrier 3.

[0026] The vehicle exhaust flows at a high speed from the intake pipe 11 into the inner cavity of the housing 1. The vehicle exhaust pushes the fan blade 44 to rotate. When the fan blade 44 rotates, it drives the rotating column 43 to rotate. The rotating column 43 drives the first driving bevel gear disk 49 to rotate. The meshing transmission between the first driving bevel gear disk 49 and the first driven bevel gear disk 48 can drive the vertical rod 47 to rotate synchronously. The vertical rod 47 drives the control disk 40 to rotate synchronously. The control disk 40 and the push-pull rod 410 cooperate with each other to conveniently push and pull the second ceramic carrier 3, thereby controlling the reciprocating movement of the second ceramic carrier 3 in the inner cavity of the housing 1.

[0027] As Figure 2 、 Figure 3, Figure 4 , Figure 6 As shown in and

[0028] , as a preferred embodiment of the present invention, the positioning assembly 52 includes a bearing column 521 rotatably mounted on the surface of the second ceramic carrier 3. A plurality of groups of spoiler plates 51 are fixedly mounted on the surface of the bearing column 521 in a ring shape, and a through hole 522 is formed inwardly on the surface of the bearing column 521.

[0028] When the second ceramic carrier 3 reciprocates in the inner cavity of the housing 1, the rotating part 531 controls the bearing column 521 to rotate on the surface of the second ceramic carrier 3. The bearing column 521 drives the spoiler plates 51 to rotate between the first ceramic carrier 2 and the second ceramic carrier 3, and the spoiler plates 51 can change the flow velocity and flow trajectory of the automobile exhaust gas.

[0029] As Figure 2 , Figure 4 , Figure 6 As shown in and

[0030] , as a preferred embodiment of the present invention, the rotating part 531 includes a rotating rod 5311 rotatably mounted on the surface of the second ceramic carrier 3. Synchronous tooth discs 5312 are respectively fixedly mounted on the surfaces of the rotating rod 5311 and the bearing column 521, and the two synchronous tooth discs 5312 are jointly connected by a synchronous belt 5313.

[0030] When the second ceramic carrier 3 reciprocates in the inner cavity of the housing 1, the driving part 532 drives the rotating rod 5311 to rotate. The rotating rod 5311 drives the synchronous tooth disc 5312 to rotate. The two synchronous tooth discs 5312 and the synchronous belt 5313 cooperate with each other to drive the bearing column 521 to rotate at the side wall of the first ceramic carrier 2.

[0031] As Figure 2 , Figure 3 , Figure 4 , Figure 6 As shown in and

[0032] , as a preferred embodiment of the present invention, the driving part 532 includes a cross bar 5321 rotatably mounted between the inner side walls of the housing 1. A telescopic column 5322 is fixedly mounted on the side of the second ceramic carrier 3 facing the bearing column 521. A tooth groove 5323 is formed on the surface of the telescopic column 5322. A fixed tooth disc 5324 is fixedly mounted on the surface of the cross bar 5321. The fixed tooth disc 5324 is meshed with the tooth groove 5323. A second driving bevel gear disc 5325 is fixedly mounted on the surface of the cross bar 5321. A second driven bevel gear disc 5326 is fixedly mounted at the end of the rotating rod 5311. The second driven bevel gear disc 5326 is meshed with the second driving bevel gear disc 5325.

[0032] When the second ceramic carrier 3 reciprocates in the inner cavity of the housing 1, it drives the telescopic column 5322 to move synchronously. The tooth grooves 5323 on the surface of the telescopic column 5322 are engaged with the fixed gear disk 5324 for transmission, which can drive the cross bar 5321 to rotate. The cross bar 5321 drives the second active bevel gear disk 5325 to rotate. The second active bevel gear disk 5325 is engaged with the second driven bevel gear disk 5326 for transmission, which can drive the rotating rod 5311 to rotate.

[0033] As Figure 2 , Figure 3 shown, as a preferred embodiment of the present invention, a guide rod 6 is fixedly installed on the inner side wall of the housing 1, and the guide rod 6 is slidably connected to the second ceramic carrier 3.

[0034] The second ceramic carrier 3 slides on the surface of the guide rod 6, and the guide rod 6 can effectively improve the stability of the second ceramic carrier 3 when sliding.

[0035] As Figure 2 , Figure 4 , Figure 5 shown, as a preferred embodiment of the present invention, the fan blade 44 and the spoiler 51 are both made of heat-resistant materials.

[0036] The working principle of the present invention is: when in use, the automobile exhaust gas flows through the intake pipe 11 into the inner cavity of the housing 1. The automobile exhaust gas passes through the second ceramic carrier 3 and the first ceramic carrier 2 in sequence, and then is discharged through the exhaust pipe 12. The second ceramic carrier 3 and the first ceramic carrier 2 can efficiently treat the automobile exhaust gas. When the automobile exhaust gas flows at a high speed in the inner cavity of the housing 1, the automobile exhaust gas pushes the fan blade 44 to rotate. When the fan blade 44 rotates, it drives the rotating column 43 to rotate. The rotating column 43 drives the first active bevel gear disk 49 to rotate. The first active bevel gear disk 49 is engaged with the first driven bevel gear disk 48 for transmission, which can drive the vertical rod 47 to rotate synchronously. The vertical rod 47 drives the control disk 40 to rotate synchronously. The control disk 40 cooperates with the push-pull rod 410, which can conveniently push and pull the second ceramic carrier 3, thereby controlling the second ceramic carrier 3 to reciprocate in the inner cavity of the housing 1. The relative position between the first ceramic carrier 2 and the second ceramic carrier 3 can be conveniently adjusted. The reciprocating movement of the second ceramic carrier 3 can change the flow state of the exhaust gas in the inner cavity of the housing 1 in real time, and can effectively reduce the noise generated when the exhaust gas flows in the first ceramic carrier 2 and the second ceramic carrier 3.

[0037] When the second ceramic carrier 3 reciprocates in the inner cavity of the housing 1, it drives the telescopic column 5322 to move synchronously. The tooth grooves 5323 on the surface of the telescopic column 5322 engage with the fixed tooth disc 5324 for transmission, which can drive the cross bar 5321 to rotate. The cross bar 5321 drives the second active helical gear disc 5325 to rotate. The second active helical gear disc 5325 engages with the second driven helical gear disc 5326 for transmission, which can drive the rotating rod 5311 to rotate. The rotating rod 5311 drives the synchronous tooth disc 5312 to rotate. The two groups of synchronous tooth discs 5312 cooperate with the synchronous belt 5313, which can drive the bearing column 521 to rotate at the side wall of the first ceramic carrier 2. The bearing column 521 drives the spoiler 51 to rotate between the first ceramic carrier 2 and the second ceramic carrier 3. The spoiler 51 can change the flow velocity and flow trajectory of the automotive exhaust gas, and further reduce the noise generated when the exhaust gas flows in the first ceramic carrier 2.

[0038] The above describes the preferred embodiments of the present invention in detail. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A noise reduction three-way catalytic converter structure, comprising a shell, one end of which is provided with an intake pipe, and the other end of which is provided with an exhaust pipe, characterized in that: A first ceramic carrier is fixedly installed in the inner cavity of the shell, and a second ceramic carrier located on one side of the first ceramic carrier is slidably installed in the inner cavity of the shell, and an adjusting component that cooperates with the second ceramic carrier is provided in the inner cavity of the shell, and the adjusting component is used to control the reciprocating movement of the second ceramic carrier in the inner cavity of the shell, and the adjusting component includes two groups of first brackets fixedly installed on the inner wall of the shell, a first fixed plate is fixedly installed in the middle of the first bracket, and a rotating column is rotatably installed together with the two groups of first fixed plates, and a fan blade is provided on the end of the rotating column facing the air intake pipe, and two groups of second brackets are fixedly installed on the inner wall of the shell, and a second fixed plate is fixedly installed in the middle of the second bracket, and a vertical rod is rotatably installed together with the two groups of second fixed plates, and a first driven bevel gear plate is fixedly installed at the bottom end of the vertical rod, and a first active bevel gear plate is fixedly installed on the surface of the rotating column, and the first active bevel gear plate is meshingly connected with the first driven bevel gear plate, and the top of the vertical rod is fixedly installed There is a control disk, and a push-pull rod is rotatably installed on the surface of the control disk at a position deviating from the center of a circle. The end of the push-pull rod away from the control disk is rotatably connected to the side wall of the second ceramic carrier. The inner cavity of the shell is provided with a spoiler mechanism located between the first ceramic carrier and the second ceramic carrier. The spoiler mechanism includes a spoiler plate, a positioning assembly and a rotating assembly. The spoiler plates are provided in multiple groups. The positioning assembly is located on the side wall of the first ceramic carrier and is connected to the spoiler plate. The positioning assembly is used to support and position the spoiler plate between the first ceramic carrier and the second ceramic carrier. The rotating assembly includes a rotating part and a driving part. The rotating part is located on the side wall of the first ceramic carrier and is connected to the positioning assembly. The driving part is located between the first ceramic carrier and the second ceramic carrier and is connected to the rotating part. The driving part controls the rotation of multiple groups of spoilers between the first ceramic carrier and the second ceramic carrier by cooperating with the rotating part.

2. A noise reduction three-way catalytic converter structure according to claim 1, characterized in that: The positioning assembly includes a bearing column rotatably mounted on the surface of a second ceramic carrier, a plurality of groups of spoilers are fixedly mounted on the surface of the bearing column in an annular shape, and a through hole is opened inwardly on the surface of the bearing column.

3. A noise reduction three-way catalytic converter structure according to claim 2, characterized in that: The rotating part includes a rotating rod rotatably mounted on the surface of the second ceramic carrier, and synchronous toothed discs are fixedly mounted on the surfaces of the rotating rod and the bearing column respectively, and the two sets of synchronous toothed discs are commonly connected with a synchronous belt.

4. The noise reduction three-way catalytic converter structure according to claim 3, characterized in that: The driving part includes a cross bar rotatably installed between the inner side walls of the shell, a telescopic column is fixedly installed on the side of the second ceramic carrier facing the supporting column, a tooth groove is opened on the surface of the telescopic column, a fixed tooth plate is fixedly installed on the surface of the cross bar, the fixed tooth plate is meshingly connected with the tooth groove, a second active bevel tooth plate is fixedly installed on the surface of the cross bar, a second driven bevel tooth plate is fixedly installed on the end of the rotating rod, and the second driven bevel tooth plate is meshingly connected with the second active bevel tooth plate.

5. The noise reduction three-way catalytic converter structure according to claim 1, characterized in that: A guide rod is fixedly mounted on the inner side wall of the shell, and the guide rod is slidably connected to the second ceramic carrier.

6. The noise reduction three-way catalytic converter structure according to claim 1, characterized in that: The fan blades and spoiler are both made of heat-resistant materials.

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