Straight cylinder aftertreatment processor mounting structure and vehicle

Abstract

The application discloses a straight cylinder type post-treatment device fixing structure and a vehicle, and relates to the technical field of vehicle fixing structures, in particular to a fixing structure which comprises a connecting support unit, a damping assembly, a first locking piece group and a second locking piece group. The first locking piece group and the second locking piece group are structurally identical, and are used for locking the front end and the rear end of the post-treatment device respectively. The first locking piece group comprises a first bracket, one end of which is hingedly connected with a first band, and the other end of which is connected with the other end of the first band in a threaded connection mode. The two ends of the first bracket on one side are respectively connected with two sets of damping assemblies in a limiting mode. In the embodiment of the application, the first bracket of the high-rigidity thickening piece improves the durability of the fixing structure; the first band is used for tightly clamping the post-treatment device in a screw torque adjusting mode, and is easy to operate; the connecting support unit is used for hanging the post-treatment device through four sets of damping assemblies, thereby blocking the vibration conduction, and making the post-treatment device have four hanging points and be more evenly stressed, improving the modal value of the exhaust system, and making the riding comfort better.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of aftertreatment device installation, and more particularly relates to a straight cylinder type aftertreatment device fixing structure and a vehicle. BACKGROUND

[0002] The diesel vehicle aftertreatment device is an important component of a vehicle, which bears the functions of collecting and processing engine exhaust pollutants and controlling vehicle emissions. Generally, the aftertreatment device is installed on the vehicle frame through a fixing support. When the vehicle is running, the vibration of the power assembly is transmitted to the aftertreatment device and the fixing support through the exhaust system, and then further transmitted to the vehicle frame and the vehicle body through the fixing support. Such vibration will affect the driving comfort of the driver and passengers in the vehicle, and will also affect the vibration mode, air flow resistance and noise of the exhaust system itself. The diesel vehicle aftertreatment device is usually heavy. In order to attenuate the transmission of vibration, the aftertreatment device fixing structure must have good damping effect, and at the same time must meet the requirements of reliability and durability. At present, most diesel vehicle straight cylinder type aftertreatment devices are fixed by a circular clamp two-point hanging, and connected to the L-shaped support on the vehicle frame through a rubber block. The entire fixing structure is in the form of a cantilevered hanging. Such cantilever structure has poor modal, and the circular clamp used is generally a thin-walled stamping part, which directly bears all the weight and vibration impact of the aftertreatment device. When the vehicle runs for a long time in harsh conditions, there is a risk of fatigue fracture.

[0003] Chinese utility model patent CN206812785U discloses an exhaust pipe fixing structure and an automobile exhaust system. The exhaust pipe fixing structure includes a vehicle frame, an exhaust pipe, a connecting piece and a locking piece. The locking piece is connected with the exhaust pipe, and the locking piece is connected with the vehicle frame through the connecting piece. The locking piece can move vertically relative to the vehicle frame. A first elastic piece is arranged between the connecting piece and the vehicle frame, and a second elastic piece is arranged between the locking piece and the vehicle frame. When the locking piece moves relative to the vehicle frame in a first direction, the connecting piece can compress the first elastic piece. When the locking piece moves relative to the vehicle frame in a second direction, the locking piece can compress the second elastic piece. The first direction is opposite to the second direction. When the exhaust pipe shakes and drives the locking piece to move up and down, one of the first elastic piece and the second elastic piece will be compressed, thereby achieving the effect of shock absorption, so that the exhaust pipe is not easy to be damaged during shaking, and the service life of the exhaust pipe is improved.

[0004] However, the above-mentioned patent has the following problems: (1) the cantilever beam structure formed by the frame and the support, the modal of the cantilever beam structure is poor, and if the design is unreasonable, the vehicle NVH (noise, vibration and acoustic roughness) related problems are prone to occur during the later use; (2) poor damping effect, the elastic member and the elastic member only rely on the characteristics of the rubber material itself to realize damping, and there is no other damping structure on the rubber body; (3) the clamp part in the locking member is formed by bending and welding of a thin steel plate, and is a main force component, and is prone to durability related problems such as clamp fracture and weld cracking after a long time; (4) during assembly, the clamp often needs to be forcibly enlarged to fit into the exhaust pipe or muffler, which can easily cause the clamp to deform and not recover well, and the locking bolt is difficult to assemble. SUMMARY

[0005] In view of the problems of poor modal of the existing technology aftertreatment device fixing structure, poor damping effect, easy to break and difficult to install and adjust, the present application provides a straight cylinder type aftertreatment device fixing structure to solve such problems.

[0006] To achieve the purpose, the present application provides a straight cylinder type aftertreatment device fixing structure, which comprises: a frame group comprising a first cross beam, a second cross beam and a right longitudinal beam; a connecting bracket unit fixedly arranged at the bottom of the frame group, comprising a first bracket connecting group, a second bracket connecting group, a third bracket connecting group and a fourth bracket connecting group; the first bracket connecting group cooperates with the second bracket connecting group to suspend the two sides of the front end of the aftertreatment device, and the third bracket connecting group cooperates with the fourth bracket connecting group to suspend the two sides of the rear end of the aftertreatment device; a damping assembly fixedly arranged at the bottom of the first bracket connecting group, the second bracket connecting group, the third bracket connecting group and the fourth bracket connecting group, respectively, which comprises a metal framework and a rubber lifting lug fixedly arranged in the metal framework; and a first locking member group and a second locking member group respectively clamping the front and rear ends of the aftertreatment device, both of which have the same structure, wherein the first locking member group comprises a first bracket and a first clamping belt; one end of the first bracket is hinged to the first clamping belt, and the other end is provided with a first T-shaped bolt hole; the first T-shaped bolt is rotatably arranged at the other end of the first clamping belt; the first T-shaped bolt is threadedly connected with the first clamping belt locking nut after passing through the first T-shaped bolt hole, and the first clamping belt locking nut is tightened to adjust the locking torque to clamp the front end of the aftertreatment device; two ends of one side of the first bracket are respectively fixedly provided with a first main lifting hook and a second main lifting hook, both of which have the same structure and are respectively connected with two groups of rubber lifting lugs arranged at the bottom of the first bracket connecting group and the second bracket connecting group.

[0007] Further, the first clamping belt is made of a thin steel belt, and both ends are formed into a first circular hole by bending and winding, and a rotating hole is further formed in the middle part of one end, the first T-shaped bolt is rotatably arranged in the first circular hole of the end, and the bottom screw rod passes out of the rotating hole.

[0008] Further, the first bracket is an arc structure, the arc of which is matched with the rear processor, and the first bracket lifts the front end bottom of the rear processor, the first bracket is made of high rigidity material and is thickened, and the cross section of the first bracket is in a groove type; a first pin hole is formed at one end of the first bracket, a first through pin shaft sequentially passes through the first pin hole formed at one end of the first bracket and a first circular hole formed at one end of the first hoop, and then a first split pin passes through a locking hole formed at the tail of the first through pin shaft, so that the one end of the first bracket is hinged to the first hoop.

[0009] Further, the metal framework is a D-shaped structure, wing plates are fixed on both sides of the metal framework, lug mounting holes are arranged at the middle of the metal framework, and damping component fixing holes are formed in the wing plates on both sides, respectively.

[0010] Further, a first gap, a second gap, a third gap and a fourth gap are further formed in the rubber lug along the outer periphery of the center hole, wherein the first gap and the second gap are symmetrically arranged on the upper and lower sides of the center hole, and the third gap and the fourth gap are symmetrically arranged on the left and right sides of the center hole.

[0011] Further, the first main hook is inserted into the center hole to be connected with the damping component, an anti-falling boss is arranged at the top of the first main hook, and a limiting ring is further arranged at the middle part of the first main hook, and the distance between the limiting ring and the anti-falling boss is equal to the length of the rubber lug.

[0012] Further, the first support connection group is fixedly connected with the first cross beam, and the third support connection group is fixedly connected with the second cross beam, and the two groups have the same structure; wherein the first support connection group comprises a first support, a first support mounting bolt, a first support mounting nut, a first damping component mounting bolt and a first damping component mounting nut; the first support is a Z-shaped structural member, and bolt holes are formed in the top and the bottom of the first support, respectively; the first support mounting bolt sequentially passes through the bolt hole in the top of the first support and the first cross beam, and the first support is fixed on the first cross beam by cooperating with the first support mounting nut; the first damping component mounting bolt sequentially passes through the bolt hole in the bottom of the first support and the damping component, and the damping component is fixed on the bottom of the first support by cooperating with the first damping component mounting nut; the third support connection group comprises a third support; a first reinforcing plate is arranged at the middle part of the first support, and second reinforcing plates are arranged on both sides of the third support.

[0013] Further, the second bracket connection set and the fourth bracket connection set are respectively fixed on the front and rear ends of the right longitudinal beam, and the two structures are the same; wherein, the second bracket connection set comprises a second bracket, a second bracket mounting bolt, a second bracket mounting nut, a second damping component mounting bolt and a second damping component mounting nut; the second bracket is a groove structure, the groove width is matched with the right longitudinal beam, bolt holes are respectively formed in the two side walls and the groove bottom of the second bracket; the second bracket mounting bolt passes through the bolt holes in the side walls of the second bracket and the rear end of the right longitudinal beam in sequence, and then the second bracket is fixed on the right longitudinal beam; the second damping component mounting bolt passes through the bolt holes in the groove bottom of the second bracket and the damping component in sequence, and then the damping component is fixed on the second bracket by cooperating with the second damping component mounting nut.

[0014] Further, the first auxiliary lifting hook is fixedly connected with one side of the first bracket at one end and fixedly connected with the first main lifting hook at the other end through a welding fixing mode; and the second auxiliary lifting hook is fixedly connected with one side of the first bracket at one end and fixedly connected with the second main lifting hook at the other end through a welding fixing mode.

[0015] According to another aspect of the present application, a vehicle is also provided, which comprises the straight cylinder type aftertreatment device fixing structure.

[0016] Overall, compared with the prior art, the above technical scheme conceived by the present application can achieve the following beneficial effects:

[0017] 1. The straight cylinder type aftertreatment device fixing structure of the present application can be hung on four positions on both sides of the front end and both sides of the rear end of the aftertreatment device through the first bracket connection set, the second bracket connection set, the third bracket connection set and the fourth bracket connection set, and the aftertreatment device is more uniformly stressed compared with the two-point hanging form, and the whole exhaust system mode is better.

[0018] 2. The straight cylinder type aftertreatment device fixing structure of the present application can lift the front and rear ends of the aftertreatment device through the first bracket and the second bracket, and can tighten the front and rear ends of the aftertreatment device through the screw rod torque adjustment mode of the first hoop belt and the second hoop belt, and the installation and disassembly are simple, the locking torque is large, and the locking adjustment mode is easy to operate.

[0019] 3. The straight cylinder type aftertreatment device fixing structure of the present application can be connected and limited on the first main lifting hook, the second main lifting hook, the third main lifting hook and the fourth main lifting hook through the four groups of damping components, so that the vibration transmission to the vehicle frame group and the vehicle body can be reduced to the maximum extent, and the comfort of passengers and drivers in the vehicle can be improved.

[0020] 4. The straight cylinder aftertreatment processor fixing structure of the present application, by opening the first gap, the second gap, the third gap and the fourth gap on the rubber lug along the outer periphery of the center hole, when the center hole is extruded, the corresponding gap is extruded in the stress direction, avoiding the contact of the rubber on both sides of the gap, thereby directly transmitting the vibration pressure to the metal framework, effectively blocking the vibration transmission, and achieving good vibration reduction and isolation effect.

[0021] 5. The straight cylinder aftertreatment processor fixing structure of the present application, by the first bracket and the second bracket being made of high rigidity material and being thickened, the cross section being groove type, for bearing and lifting the aftertreatment processor, the first band and the second band being made of thin steel band, having high tensile strength, large toughness and good fatigue resistance, and being able to adapt to the outer diameter of the aftertreatment processor after bending deformation, and clamping and locking the aftertreatment processor without bearing stress; by the first auxiliary hook being arranged at the bottom of the first main hook, the second auxiliary hook being arranged at the bottom of the second main hook, the third auxiliary hook being arranged at the bottom of the third main hook, and the fourth auxiliary hook being arranged at the bottom of the fourth main hook, the structure strength is improved; by the first reinforcing plate being arranged at the middle part of the first support, the structure strength of the first support is strengthened; by the second reinforcing plate being arranged at both sides of the third support, the structure strength of the third support is strengthened; through the above measures, the fixing structure of the present application can effectively adapt to the shaking caused by the aftertreatment processor, has high structure strength and long service life. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a front view of the straight cylinder aftertreatment processor fixing structure in the embodiment of the present application.

[0023] Figure 2 It is a top view of the straight cylinder aftertreatment processor fixing structure in the embodiment of the present application.

[0024] Figure 3 It is an assembly diagram of the first support connection group, the second support connection group and the first locking piece group in the embodiment of the present application.

[0025] Figure 4 It is an explosion view of the first support connection group, the second support connection group and the first locking piece group in the embodiment of the present application.

[0026] Figure 5 It is an assembly diagram of the third support connection group, the fourth support connection group and the second locking piece group in the embodiment of the present application.

[0027] Figure 6 It is an explosion view of the third support connection group, the fourth support connection group and the second locking piece group in the embodiment of the present application.

[0028] Figure 7 It is a structure diagram of the vibration reduction assembly in the embodiment of the present application.

[0029] In all the drawings, the same reference numerals designate the same technical features, in particular:

[0030] 1-Connecting bracket unit, comprising: 11-First bracket connecting group, 111-First bracket, 112-First bracket mounting bolt, 113-First bracket mounting nut, 114-First damping component mounting bolt, 115-First damping component mounting nut, 116-First reinforcing plate; 12-Second bracket connecting group, 121-Second bracket, 122-Second bracket mounting bolt, 123-Second bracket mounting nut, 124-Second damping component mounting bolt, 125-Second damping component mounting nut; 13-Third bracket connecting group, 131-Third bracket, 132-Third bracket mounting bolt, 133-Third bracket mounting nut, 134-Third damping component mounting bolt, 135-Third damping component mounting nut, 136-Second reinforcing plate; 14-Fourth bracket connecting group, 141-Fourth bracket, 142-Fourth bracket mounting bolt, 143-Fourth bracket mounting nut, 144-Fourth damping component mounting bolt, 145-Fourth damping component mounting nut;

[0031] 2-First locking piece group, comprising: 21-First bracket, 211-First main hook, 212-First auxiliary hook, 213-Second main hook, 214-Second auxiliary hook, 215-First pin hole, 216-First T-shaped bolt hole, 22-First strap, 221-First T-shaped bolt, 222-First circular hole, 23-First hole pin shaft, 24-First split pin, 25-First strap locking nut;

[0032] 3-Second locking piece group, comprising: 31-Second bracket, 311-Third main hook, 312-Third auxiliary hook, 313-Fourth main hook, 314-Fourth auxiliary hook, 315-Second pin hole, 316-Second T-shaped bolt hole, 32-Second strap, 321-Second T-shaped bolt, 322-Second circular hole, 33-Second hole pin shaft, 34-Second split pin, 35-Second strap locking nut;

[0033] 4-Damping component, comprising: 41-Rubber lug, 411-First gap, 412-Second gap, 413-Third gap, 414-Fourth gap, 415-Central hole, 42-Metal framework, 421-Damping component fixing hole, 423-Lug mounting hole;

[0034] 5-Postprocessor;

[0035] 6-Frame group, comprising: 601-First cross beam, 602-Second cross beam, 603-Right longitudinal beam. DETAILED DESCRIPTION

[0036] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and should not be used to limit the present application. In addition, the technical features involved in the various embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0037] As shown in Figures 1-7 The present application provides a straight cylinder type aftertreatment processor fixing structure, which comprises a connecting bracket unit 1 fixedly connected with a vehicle frame group 6, a damping assembly 4 arranged at the bottom of the connecting bracket unit 1 for blocking vibration conduction, a first locking piece group 2 and a second locking piece group 3 respectively limitingly connected with the damping assembly 4, and the first locking piece group 2 and the second locking piece group 3 respectively lock the front and rear ends of an aftertreatment processor 5. The first locking piece group 2 and the second locking piece group 3 are the same in structure, which comprises a first bracket 21 for bearing, a first hoop 22 hingedly connected with one end of the first bracket 21, the first hoop 22 is made of an elastic thin steel band, and the other end of the first hoop 22 is connected with the other end of the first bracket 21 in a threaded connection manner; and both ends of one side of the first bracket 21 are respectively limitingly connected with two groups of damping assemblies 4. In the embodiment of the present application, the first bracket 21 with high rigidity and thickening improves the durability of the fixing structure; the first hoop 22 made of an elastic thin steel band is fixed on the first bracket 21 in a threaded connection manner at one end, which is convenient to adjust, has large locking torque and is easy to assemble; the connecting bracket unit 1 cooperates with the first locking piece group 2 and the second locking piece group 3 through four groups of damping assemblies 4 to hang the aftertreatment processor 5, which blocks vibration conduction, provides four hanging points for the aftertreatment processor 5, makes the stress more uniform, improves the modal value of the exhaust system, and makes the ride comfort better.

[0038] As shown in Figures 1-2 The vehicle frame group 6 is part of the vehicle longitudinal beam and cross beam, and the specific structure is not limited. Specifically, in one embodiment of the present application, the vehicle frame group 6 comprises a right longitudinal beam 603 arranged longitudinally at the bottom of a vehicle body, a first cross beam 601 and a second cross beam 602 respectively perpendicularly and fixedly connected with the right longitudinal beam 603.

[0039] The bottom of the frame group 6 is hung by the connecting support unit 1 at the front and rear ends of the after-treater 5 respectively, the connecting support unit 1 comprises a first support connecting group 11, a second support connecting group 12, a third support connecting group 13 and a fourth support connecting group 14, wherein the first support connecting group 11 cooperates with the second support connecting group 12 to hang the front end of the after-treater 5, and the third support connecting group 13 cooperates with the fourth support connecting group 14 to hang the rear end of the after-treater 5. In some embodiments of the present application, due to the requirements of the body frame structure, the horizontal height of the second cross beam 602 at the rear end of the vehicle body is higher than that of the first cross beam 601, the first support connecting group 11 is fixedly connected with the top of the first cross beam 601, the third support connecting group 13 is fixedly connected with the bottom of the second cross beam 602, and the second support connecting group 12 and the fourth support connecting group 14 are fixedly connected with the front and rear ends of the right longitudinal beam 603 respectively.

[0040] As shown in Figures 3-4 The first support connecting group 11 comprises a first support 111, a first support mounting bolt 112, a first support mounting nut 113, a first damping assembly mounting bolt 114 and a first damping assembly mounting nut 115. The first support 111 is a Z-shaped structural member, the top and the bottom of which are respectively provided with bolt holes; the first support mounting bolt 112 passes through the top bolt hole of the first support 111 and the rear of the first cross beam 601 in sequence, and cooperates with the first support mounting nut 113 to fix the first support 111 on the first cross beam 601; the first damping assembly mounting bolt 114 passes through the bottom bolt hole of the first support 111 and the rear of the damping assembly 4 in sequence, and cooperates with the first damping assembly mounting nut 115 to fix the damping assembly 4 on the bottom of the first support 111. Preferably, the first support 111 is further provided with a first reinforcing plate 116 at the middle position to strengthen the structural strength of the first support 111 and prolong the service life.

[0041] The second support connecting group 12 comprises a second support 121, a second support mounting bolt 122, a second support mounting nut 123, a second damping assembly mounting bolt 124 and a second damping assembly mounting nut 125. The second support 121 is a groove structural member, the groove width of which is matched with the right longitudinal beam 603, and the side walls and the groove bottom of which are respectively provided with bolt holes; the second support mounting bolt 122 passes through the side wall bolt holes of the second support 121 and the right longitudinal beam 603 in sequence to fix the second support 121 on the right longitudinal beam 603; the second damping assembly mounting bolt 124 passes through the groove bottom bolt hole of the second support 121 and the rear of the damping assembly 4 in sequence, and cooperates with the second damping assembly mounting nut 125 to fix the damping assembly 4 on the bottom of the second support 121. Preferably, the second damping assembly mounting bolt 124 is a projection welding bolt.

[0042] As shown in Figures 5-6As shown, the third support connecting group 13 is identical in structure to the first support connecting group 11, comprising a third support 131, a third support mounting bolt 132, a third support mounting nut 133, a third damping component mounting bolt 134 and a third damping component mounting nut 135. The third support 131 is a Z-shaped structural member, the top and bottom of which are respectively provided with bolt holes; the third support mounting bolt 132 passes through the second cross beam 602 and the third support 131 top bolt hole in sequence, and then cooperates with the third support mounting nut 133 to fix the third support 131 on the second cross beam 602. Preferably, the third support 131 is further provided with a second reinforcing plate 136 on both sides, which strengthens the structural strength of the third support 131 and prolongs its service life.

[0043] The fourth support connecting group 14 is identical in structure to the second support connecting group 12, comprising a fourth support 141, a fourth support mounting bolt 142, a fourth support mounting nut 143, a fourth damping component mounting bolt 144 and a fourth damping component mounting nut 145. Preferably, the fourth damping component mounting bolt 144 is a projection welding bolt.

[0044] As shown in FIG. 6, the fourth support 141 is fixed on the second cross beam 602 through the fourth support mounting bolt 142 and the fourth support mounting nut 143, and the fourth damping component mounting bolt 144 and the fourth damping component mounting nut 145 are fixed on the fourth support 141. Figure 7As shown, the damping assembly 4 includes a rubber lug 41 and a metal framework 42. The metal framework 42 is a D-shaped structure, both sides of which are fixedly provided with wing plates, and a lug mounting hole 423 is arranged at the middle thereof, and damping assembly fixing holes 421 are respectively formed in the wing plates on both sides, and four groups of the damping assembly 4 are respectively fixedly connected with the bottom of the first support 111, the second support 121, the third support 131 and the fourth support 141 through the damping assembly fixing holes 421. The rubber lug 41 is made of rubber material and has a cylindrical structure, and the outer side is fixed in the lug mounting hole 423 through a vulcanization process; further, the rubber lug 41 is provided with a center hole 415 at the central axis, and the damping assembly 4 is respectively limitedly connected with the first locking piece group 2 and the second locking piece group 3 through the center hole 415, and the vibration conducted by the post-processor 5 to the connecting support unit 1 and the frame group 6 through the first locking piece group 2 and the second locking piece group 3 is blocked by the damping performance of the rubber lug 41 itself. Preferably, a first gap 411, a second gap 412, a third gap 413 and a fourth gap 414 are further formed in the rubber lug 41 along the outer periphery of the center hole 415, wherein the first gap 411 and the second gap 412 are symmetrically arranged on the upper and lower sides of the center hole 415, and the third gap 413 and the fourth gap 414 are symmetrically arranged on the left and right sides of the center hole 415. By arranging the first gap 411, the second gap 412, the third gap 413 and the fourth gap 414 around the center hole 415, when the center hole 415 is extruded, it extrudes the corresponding gap in the stress direction, for example, when it is subjected to downward pressure, it extrudes the second gap 412, so that the second gap 412 shrinks to offset the vibration pressure, avoiding the contact of the rubber on both sides of the second gap 412 to directly conduct the vibration pressure to the metal framework 42, effectively blocking the vibration conduction.

[0045] As shown in Figures 3-4 The first locking piece group 2 locks the front end of the post-processor 5 and is hung and connected with the first support connecting group 11 and the second support connecting group 12 through two groups of the damping assembly 4, and includes a first bracket 21 and a first hoop 22.

[0046] The first bracket 21 is arc-shaped, and the arc is matched with the post-treatment device 5. The first bracket 21 is made of high-rigidity material and is thickened, and the cross section is in a groove type, so that the service life of the first bracket 21 is long and the first bracket 21 is not prone to vibration and fracture. Further, the first bracket 21 is provided with a first main lifting hook 211 and a second main lifting hook 213 at two ends of one side of the first bracket 21, and the first main lifting hook 211 and the second main lifting hook 213 are the same in structure and are connected to the vibration reduction assembly 4 by being inserted into the center hole 415. Further, the first main lifting hook 211 is provided with an anti-falling boss at the top of the first main lifting hook 211, and the anti-falling boss limits the first main lifting hook 211 from being pulled out of the center hole 415. The first main lifting hook 211 is further provided with a limiting ring at the middle part of the first main lifting hook 211, and the distance between the limiting ring and the anti-falling boss is equal to the length of the rubber lifting lug 41, so as to limit the vibration reduction assembly 4 from sliding on the first main lifting hook 211. Preferably, the first bracket 21 is further provided with a first auxiliary lifting hook 212 below the first main lifting hook 211, and the first bracket 21 is further provided with a second auxiliary lifting hook 214 below the second main lifting hook 213. One end of the first auxiliary lifting hook 212 is fixedly connected to one side of the first bracket 21, and the other end of the first auxiliary lifting hook 212 is fixedly connected to the first main lifting hook 211 by a welding fixing mode, so as to support the first main lifting hook 211 and improve the structural strength of the first main lifting hook 211. One end of the second auxiliary lifting hook 214 is fixedly connected to one side of the first bracket 21, and the other end of the second auxiliary lifting hook 214 is fixedly connected to the second main lifting hook 213 by a welding fixing mode, so as to support the second main lifting hook 213 and improve the structural strength of the second main lifting hook 213. The first auxiliary lifting hook 212 supports the first main lifting hook 211 and the second auxiliary lifting hook 214 supports the second main lifting hook 213, so that the connection strength of the first locking component group 2 on both sides to the two vibration reduction assemblies 4 is increased, the metal fatigue fracture phenomenon caused by long-term bearing stress and vibration is avoided, and the post-treatment device 5 is effectively prevented from falling off and is hung on the bottom of the vehicle frame group 6 for a long time. Further, the first bracket 21 is provided with a first pin hole 215 at one end of the first bracket 21, and the first bracket 21 is hingedly connected to one end of the first hoop belt 22 by a first pin with a hole 23. The first bracket 21 is provided with a first T-shaped bolt hole 216 at the top of the other end of the first bracket 21, and the first bracket 21 is connected to the other end of the first hoop belt 22 by a threaded connection mode.

[0047] The first hoop belt 22 is made of a thin steel belt, has high tensile strength and great toughness, has good fatigue resistance, and can be bent and deformed to adapt to the outer diameter of the post-treatment device 5 and tightly lock the post-treatment device 5. Further, the first hoop belt 22 is formed into a first circular hole 222 by being bent and wound at two ends of the first hoop belt 22, and a rotating hole is formed at the middle part of one end of the first hoop belt 22. The first T-shaped bolt 221 is rotatably arranged in the first circular hole 222 at the one end of the first hoop belt 22, and the bottom screw rod is pulled out of the rotating hole.

[0048] When the first band 22 and the first bracket 21 are used to tighten and lock the front end of the post-processor 5, the first pin hole shaft 23 is sequentially inserted through the first pin hole 215 provided at one end of the first bracket 21 and the first circular hole 222 provided at one end of the first band 22, and then the first split pin 24 is inserted through the locking hole provided at the tail of the first pin hole shaft 23 to prevent the first pin hole shaft 23 from falling off, thereby realizing the hinging of the first band 22 and the other end of the first bracket 21. The first bracket 21 is placed at the bottom of the front end of the post-processor 5 to lift it, and the first band 22 is rotated around the first pin hole shaft 23 as the rotating shaft to make the other end of the first band 22 fold with the other end of the first bracket 21. The screw rod of the first T-shaped bolt 221 is aligned with the first T-shaped bolt hole 216, and then the first band is locked with the first band locking nut 25 through the thread connection. By tightening the first band locking nut 25, the other end of the first band 22 is gradually close to the other end of the first bracket 21, the first band 22 is bent and deformed, and the gap between the first band 22 and the first bracket 21 is tightened, so that the front end of the post-processor 5 is tightly locked, the locking torque is large, and the locking adjustment method is simple and easy to operate.

[0049] As shown in Figures 5-6 The second locking component group 3 is used to lock the rear end of the post-processor 5 and is hung and connected with the third bracket connecting group 13 and the fourth bracket connecting group 14 through two groups of damping components 4, and the second locking component group 3 comprises a second bracket 31 and a second band 32.

[0050] The second bracket 31 is made of high-rigidity material and is thickened to have a long service life and be less likely to be broken by vibration. Further, in some embodiments of the present application, in order to adapt to the structure change of the frame group 6, the two ends of the second bracket 31 are connected with the third bracket connecting group 13 and the fourth bracket connecting group 14 respectively, and the second bracket 31 is provided with an extension part on the basis of the arc-shaped structure, the one end of the arc-shaped part is extended and raised to form a J-shaped structure, so that the extended end can be connected with the third bracket connecting group 13 provided on the second cross beam 602. Further, the two ends of one side of the second bracket 31 are fixedly provided with a third main lifting hook 311 and a fourth main lifting hook 313 respectively, the third main lifting hook 311 is limitingly connected with one group of damping components 4 provided at the bottom of the third bracket connecting group 13, and the fourth main lifting hook 313 is limitingly connected with one group of damping components 4 provided at the bottom of the fourth bracket connecting group 14. Preferably, the third main lifting hook 311 is further provided with a third auxiliary lifting hook 312 below to support it, and the fourth main lifting hook 313 is further provided with a fourth auxiliary lifting hook 314 below to support it. Further, the second bracket 31 is provided with a second pin hole 315 at one end, and the second pin hole 315 can be hinged with one end of the second band 32 through a second pin hole shaft 33; the other end of the second bracket 31 is provided with a second T-shaped bolt hole 316, and the other end of the second band 32 can be connected with the second T-shaped bolt hole 316 through thread connection.

[0051] The second band 32 is identical in structure to the first band 22, and includes a second circular hole 322 at each end, wherein a second T-shaped bolt 321 is rotatably arranged in the second circular hole 322 at one end, and the other end is matched by a second hole pin shaft 33 and a second split pin 34 to realize hinging with one end of a second bracket 31 provided with a second pin hole 315.

[0052] In the embodiment of the present application, when the installation work of the fixed structure of the diesel vehicle straight cylinder type aftertreatment device is performed, positioning holes are opened at corresponding positions of the first cross beam 601, the second cross beam 602 and the right longitudinal beam 603 in advance, and the first support 111 is installed and fixed at a corresponding position on the first cross beam 601, the second support 121 is installed and fixed at a corresponding position at the front end of the right longitudinal beam 603, the third support 131 is fixed at a corresponding position on the second cross beam 602, and the fourth support 141 is installed and fixed at a corresponding position at the rear end of the right longitudinal beam 603; the center holes 415 of the four groups of damping assemblies 4 are aligned and respectively sleeved on the first main hook 211, the second main hook 213, the third main hook 311 and the fourth main hook 313 for limiting connection; the first band 22 is hinged to one end of the first bracket 21 by using the first hole pin shaft 23 and the first split pin 24; the second band 32 is hinged to one end of the second bracket 31 by using the second hole pin shaft 33 and the second split pin 34; the first bracket 21 is placed at the bottom of the front end of the aftertreatment device 5 for lifting, the first T-shaped bolt 221 is connected with the first band lock nut 25 after passing through the first T-shaped bolt hole 216, and is temporarily not locked; the second bracket 31 is placed at the bottom of the rear end of the aftertreatment device 5 for lifting, the second T-shaped bolt 321 is connected with the second band lock nut 35 after passing through the second T-shaped bolt hole 316, and is temporarily not locked; the first locking part group 2 is slid on the aftertreatment device 5, so that the two groups of damping assemblies 4 on the two sides thereof are respectively aligned with the first damping assembly mounting bolt 114 and the second damping assembly mounting bolt 124, and the first damping assembly mounting nut 115 and the second damping assembly mounting nut 125 are respectively tightened, so that the two groups of damping assemblies 4 are respectively fixed at the bottom of the first support 111 and the second support 121, and the front end of the aftertreatment device 5 is hung on the bottom of the vehicle frame group 6; the second locking part group 3 is slid on the aftertreatment device 5, so that the two groups of damping assemblies 4 on the two sides thereof are respectively aligned with the third damping assembly mounting bolt 134 and the fourth damping assembly mounting bolt 144, and the third damping assembly mounting nut 135 and the fourth damping assembly mounting nut 145 are respectively tightened, so that the two groups of damping assemblies 4 are respectively fixed at the bottom of the third support 131 and the fourth support 141, and the rear end of the aftertreatment device 5 is hung on the bottom of the vehicle frame group 6; the first band lock nut 25 and the second band lock nut 35 are respectively tightened, and the locking torque is adjusted, so that the aftertreatment device 5 is locked and fixed at the front and rear ends, and the installation work of the fixed structure is completed.

[0053] In the embodiment of the present application, the first support connecting group 11, the second support connecting group 12, the third support connecting group 13 and the fourth support connecting group 14 are arranged to hang the four parts on the two sides of the front end and the two sides of the rear end of the post-treatment device 5 respectively, compared with the two-point hanging form, the post-treatment device 5 of the present application is more uniform in stress, and the whole exhaust system mode is better.

[0054] In the embodiment of the present application, the first bracket 21 and the second bracket 31 are made of high-rigidity material and are thickened, and the cross section is in a groove type, which is used to support and lift the post-treatment device 5, the first band 22 and the second band 32 are made of thin steel bands, which have high tensile strength, great toughness and good fatigue resistance, can be adapted to the outer diameter of the post-treatment device 5 after bending deformation, and can tightly lock the post-treatment device 5 without bearing stress; the first auxiliary hook 212 is arranged at the bottom of the first main hook 211, the second auxiliary hook 214 is arranged at the bottom of the second main hook 213, the third auxiliary hook 312 is arranged at the bottom of the third main hook 311, and the third auxiliary hook 314 is arranged at the bottom of the fourth main hook 313, so as to improve the structural strength; the first reinforcing plate 116 is arranged at the middle part of the first support 111, so as to strengthen the structural strength of the first support 111; the second reinforcing plate 136 is arranged at the two sides of the third support 131, so as to strengthen the structural strength of the third support 131; through the above measures, the fixing structure of the present application can effectively adapt to the shaking caused by the post-treatment device 5, has high structural strength and long service life.

[0055] In the embodiment of the present application, the first bracket 21 and the second bracket 31 respectively lift the front and rear ends of the post-treatment device 5, and the first band 22 and the second band 32 tightly lock the front and rear ends of the post-treatment device 5 in the form of screw adjustment torque, which is simple to install and dismount, has large locking torque and is easy to operate.

[0056] In the embodiment of the present application, the four groups of damping components 4 are respectively connected with the first main hook 211, the second main hook 213, the third main hook 311 and the fourth main hook 313, which can reduce the vibration transmission to the frame group 6 and the vehicle body to the greatest extent, and improve the comfort of passengers and drivers in the vehicle.

[0057] In the embodiment of the present application, the first gap 411, the second gap 412, the third gap 413 and the fourth gap 414 are arranged on the rubber lifting lug 41 along the outer periphery of the center hole 415, when the center hole 415 is extruded, the corresponding gap is extruded in the stress direction, which avoids the contact between the rubber on both sides of the gap and directly transmits the vibration pressure to the metal framework 41, effectively blocks the vibration transmission, and achieves good damping and vibration isolation effect.

[0058] The second aspect of the embodiment of the present application provides a vehicle using the diesel vehicle straight cylinder after-treatment device fixing structure of any of the above-mentioned embodiments.

[0059] Those skilled in the art can understand that the above description is only the preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A straight-cylinder post-processor fixing structure, characterized in that: include: A vehicle frame assembly (6) comprising a first crossbeam (601), a second crossbeam (602) and a right longitudinal beam (603); A connecting bracket unit (1) fixedly arranged at the bottom of the vehicle frame group (6) comprises a first bracket connecting group (11), a second bracket connecting group (12), a third bracket connecting group (13) and a fourth bracket connecting group (14); the first bracket connecting group (11) cooperates with the second bracket connecting group (12) to suspend the two front ends of the post-processor (5), and the third bracket connecting group (13) cooperates with the fourth bracket connecting group (14) to suspend the two rear ends of the post-processor (5); A vibration damping assembly (4) fixedly arranged at the bottom of the first bracket connection group (11), the second bracket connection group (12), the third bracket connection group (13), and the fourth bracket connection group (14), respectively, comprising a metal frame (42) and a rubber hanging ear (41) fixedly arranged in the metal frame (42); and a first locking member group (2) and a second locking member group (3) for respectively tightening the front and rear ends of the post-processor (5), both having the same structure, wherein the first locking member group (2) comprises a first bracket (21) and a first band (22); one end of the first bracket (21) is hinged to the first band (22), and the other end is provided with a first T-bolt hole (216); the other end of the first band (22) is rotatably provided with a first T-bolt (221); the first T-bolt (221) After passing through the first T-bolt hole (216), it is threadedly connected to the first hoop locking nut (25), and by tightening the first hoop locking nut (25), the locking torque is adjusted to tighten the front end of the post-processor (5); the first main hook (211) and the second main hook (213) are respectively fixed at both ends of one side of the first bracket (21), and the two main hooks have the same structure and are respectively connected to the two groups of rubber ears (41) provided at the bottom of the first bracket connection group (11) and the second bracket connection group (12).

2. A straight-tube post-processor fixing structure according to claim 1, characterized in that: The first hoop (22) is made of a thin steel strip, and its two ends are bent and coiled to form a first circular hole (222). A rotation hole is also opened in the middle of one end. The top of the first T-bolt (221) is rotatably arranged in the first circular hole (222) at this end, and the bottom screw rod passes through the rotation hole.

3. The straight-tube post-processor fixing structure according to claim 2, characterized in that: The first bracket (21) is an arc-shaped structure, the curvature of which is adapted to the post-processor (5), and supports the bottom of the front end of the post-processor (5). It is made of a high-rigidity material and is thickened, and its cross section is groove-shaped; a first pin hole (215) is opened at one end of the first bracket (21), and after the first perforated pin shaft (23) passes through the first pin hole (215) provided at one end of the first bracket (21) and the first circular hole (222) provided at one end of the first hoop (22) in sequence, a first cotter pin (24) is used to pass through the locking hole provided at the tail of the first perforated pin shaft (23), so as to realize the hinge connection between one end of the first bracket (21) and the first hoop (22).

4. A straight-tube post-processor fixing structure according to any one of claims 1-3, characterized in that: The metal frame (42) is a D-shaped structure, with wing plates fixed on both sides, a lug mounting hole (423) in the middle, and vibration reduction component fixing holes (421) respectively opened on the wing plates on both sides; the rubber lug (41) is made of rubber material, has a cylindrical structure, has a central hole (415) opened at the central axis, and its outer side is fixed to the lug mounting hole (423) through a vulcanization process.

5. The straight-tube post-processor fixing structure according to claim 4, characterized in that: A first gap (411), a second gap (412), a third gap (413) and a fourth gap (414) are also provided on the rubber ear (41) along the outer periphery of the central hole (415), wherein the first gap (411) and the second gap (412) are symmetrically arranged on the upper and lower sides of the central hole (415), and the third gap (413) and the fourth gap (414) are symmetrically arranged on the left and right sides of the central hole (415).

6. The straight-tube post-processor fixing structure according to claim 5, characterized in that: The first main hook (211) is inserted into the center hole (415) to achieve connection with the vibration reduction assembly (4), and an anti-slip boss is provided on the top of the first main hook, and a limiting ring is also provided in the middle. The distance between the limiting ring and the anti-slip boss is equal to the length of the rubber lifting ear (41).

7. The straight-tube post-processor fixing structure according to claim 4, characterized in that: The first bracket connection group (11) is fixedly connected to the first crossbeam (601), and the third bracket connection group (13) is fixedly connected to the second crossbeam (602), and both have the same structure; Wherein, the first bracket connection group (11) includes a first bracket (111), a first bracket mounting bolt (112), a first bracket mounting nut (113), a first vibration damping assembly mounting bolt (114) and a first vibration damping assembly mounting nut (115); the first bracket (111) is a Z-shaped structural member, and bolt holes are respectively opened on the top and bottom of the first bracket; the first bracket mounting bolt (112) passes through the top bolt hole of the first bracket (111) and the first crossbeam (601) in sequence, and then cooperates with the first bracket mounting nut (113) to fix the first bracket (111) to the first crossbeam (601); the first vibration damping assembly mounting bolt (114) passes through the bottom bolt hole of the first bracket (111) and the vibration damping assembly (4) in sequence, and then cooperates with the first vibration damping assembly mounting nut (115) to fix the vibration damping assembly (4) to the first bracket (111); The third bracket connection group (13) includes a third bracket (131); A first reinforcing plate (116) is provided in the middle of the first bracket (111), and second reinforcing plates (136) are provided on both sides of the third bracket (131).

8. The straight-tube post-processor fixing structure according to claim 4, characterized in that: The second bracket connection group (12) and the fourth bracket connection group (14) are respectively fixed to the front and rear ends of the right longitudinal beam (603), and both have the same structure; The second bracket connection group (12) includes a second bracket (121), a second bracket mounting bolt (122), a second bracket mounting nut (123), a second vibration damping assembly mounting bolt (124) and a second vibration damping assembly mounting nut (125); the second bracket (121) is a groove structural member, the groove width is adapted to the right longitudinal beam (603), and bolt holes are respectively opened on both side walls and the groove bottom; the second bracket mounting bolt (122) passes through the bolt hole of the side wall of the second bracket (121) and the right longitudinal beam (603) in sequence, and then fixes the second bracket (121) to the right longitudinal beam (603); the second vibration damping assembly mounting bolt (124) passes through the bolt hole of the groove bottom of the second bracket (121) and the vibration damping assembly (4) in sequence, and then cooperates with the second vibration damping assembly mounting nut (125) to fix the vibration damping assembly (4) to the bottom of the second bracket (121).

9. A straight-tube post-processor fixing structure according to any one of claims 1-3, characterized in that: A first auxiliary hook (212) is further provided below the first main hook (211), and a second auxiliary hook (214) is further provided below the second main hook (213); one end of the first auxiliary hook (212) is fixedly connected to one side of the first bracket (21), and the other end is fixedly connected to the first main hook (211) by welding; one end of the second auxiliary hook (214) is fixedly connected to one side of the first bracket (21), and the other end is fixedly connected to the second main hook (213) by welding.

10. A vehicle, characterized in that: The invention comprises using the straight-cylinder post-processor fixing structure according to any one of claims 1 to 9.

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