CN108482487B - Novel tail beam structure for full-bearing passenger car underframe - Google Patents
Novel tail beam structure for full-bearing passenger car underframe Download PDFInfo
- Publication number
- CN108482487B CN108482487B CN201810506860.0A CN201810506860A CN108482487B CN 108482487 B CN108482487 B CN 108482487B CN 201810506860 A CN201810506860 A CN 201810506860A CN 108482487 B CN108482487 B CN 108482487B
- Authority
- CN
- China
- Prior art keywords
- assembly
- tail
- reinforcing plate
- compressor
- water tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention discloses a novel tail beam structure for a full-load passenger car underframe, which relates to the technical field of automobile parts and comprises a tail beam assembly, a compressor assembly and a water tank bracket assembly, wherein a left suspension reinforcing plate and a right suspension reinforcing plate which are symmetrical to each other are arranged on the inner side of the tail beam assembly, and are respectively connected with a left longitudinal beam and a right longitudinal beam of a frame. The left side of the tail beam assembly is provided with a compressor assembly, and the right side is provided with a water tank bracket assembly. The invention carries out the optimal design on the traditional frame tail end structure, greatly improves the Z-direction bending rigidity of the combined structure of the compressor bracket, the frame tail cross beam and the water tank bracket and the torsional rigidity of the frame tail end, enhances the Z-direction dynamic rigidity of the frame at the front suspension bracket, improves the vibration isolation performance of the suspension, effectively ensures the NVH performance and improves the riding comfort.
Description
Technical Field
The invention relates to the technical field of automobile parts, in particular to a novel tail beam structure for a full-bearing passenger car underframe.
Background
The frame is a frame structure bridging the front and rear axles of the automobile and generally consists of longitudinal beams and cross beams, wherein the cross beams are used for ensuring the torsional rigidity of the frame and bearing longitudinal loads and can also support main components on the automobile. The automobile suspension bracket refers to an elastic connecting part between the power assembly and the frame, and is one of key paths for transmitting engine vibration to the automobile body.
As shown in fig. 1, the Z-direction dynamic stiffness of left and right front suspension brackets of an automobile at an idling frequency of an engine is mainly affected by an inherent mode of a tail end of a frame near the frequency, and the mode shape of the mode is mainly expressed as: the partial frames on the side of the left longitudinal beam 3' and the partial frames on the side of the right longitudinal beam 4' are twisted around the X axis, the compressor bracket cross beam 1', the frame tail cross beam 6', the water tank bracket 7' are bent in the first order of the Z direction, and the two work together to influence the dynamic stiffness of the left front suspension bracket and the right front suspension bracket in the Z direction.
In the traditional frame of a large and medium bus, a compressor bracket is fixed on the left side (the left longitudinal beam 3 'side) of the tail end of the frame through 6 bolts of a folded edge of a compressor base 2', and the Z-direction rigidity at a mounting hole is poor because the bending rigidity of the compressor base 2 'is far lower than that of a cross beam 1' of the compressor bracket; because the dislocation 5' exists between the compressor base 2' and the frame tail cross beam 6' in the X direction, extra torque around the X axis exists at the mounting point of the frame tail cross beam 6' and the left longitudinal beam 3', and the Z-direction rigidity of the place is reduced; the water tank bracket 7 'is connected with the tail end (the side of the right longitudinal beam 4') of the frame through 8 bolts, the distance between the mounting points in the Z direction is small, the fixing points are distributed on the periphery of the groove bending piece with the cross section, and the rigidity in the Z direction is low.
The reason leads to the fact that the Z-direction rigidity of the left front suspension bracket and the right front suspension bracket of the existing large bus and the middle bus is low at the idle frequency of the engine, the vibration isolation effect is poor, the NVH performance is reduced, and the riding comfort is poor.
Disclosure of Invention
The invention provides a novel tail beam structure for an underframe of a full-load passenger car, and mainly aims to solve the problems of low Z-direction rigidity, poor vibration isolation effect, reduced NVH (noise vibration harshness) performance, poor riding comfort and the like of a front suspension bracket due to unreasonable structural design of the tail end of a frame of an existing passenger car.
The invention adopts the following technical scheme:
the novel tail beam structure for the chassis of the full-load passenger car comprises a tail beam assembly, a compressor assembly and a water tank bracket assembly, wherein a left suspension reinforcing plate and a right suspension reinforcing plate which are symmetrical to each other are arranged on the inner side of the tail beam assembly, and the left suspension reinforcing plate and the right suspension reinforcing plate are respectively connected with a left longitudinal beam and a right longitudinal beam of a frame; the left side of the tail beam assembly is provided with the compressor assembly, and the right side is provided with the water tank bracket assembly.
Further, the tail beam assembly comprises an upper beam and a lower beam, wherein the left side and the right side between the upper beam and the lower beam are connected through a plurality of upright posts, and the middle parts of the upper beam and the lower beam are connected through two mutually symmetrical diagonal braces; the left suspension reinforcing plate and the right suspension reinforcing plate are respectively connected with the upper cross beam, the lower cross beam and the upright post.
Further, a first reinforcing plate is arranged between the two diagonal braces.
Further, the compressor assembly comprises a compressor base, a compressor beam and a -shaped support, wherein the two compressor beams are connected through an upright post and provided with a second reinforcing plate, and the two compressor beams are detachably connected to the left side of the tail beam assembly.
Further, the two compressor cross beams are respectively arranged on the upper cross beam and the lower cross beam through flange plate matched bolts.
Further, the water tank support assembly comprises a water tank cross beam, the two water tank cross beams are connected through an upright post and are provided with a third reinforcing plate, and the two water tank cross beams are detachably connected to the right side of the tail cross beam assembly.
Further, the two water tank cross beams are respectively arranged on the upper cross beam and the lower cross beam through flange plate matched bolts.
Compared with the prior art, the invention has the beneficial effects that:
the invention comprises a tail beam assembly, a compressor assembly and a water tank bracket assembly, wherein the inner side of the tail beam assembly is provided with a left suspension reinforcing plate and a right suspension reinforcing plate which are symmetrical with each other, and the left suspension reinforcing plate and the right suspension reinforcing plate are respectively connected with a left longitudinal beam and a right longitudinal beam of a frame. The invention has the beneficial effects that: the invention carries out the optimal design on the traditional frame tail end structure, greatly improves the Z-direction bending rigidity of the combined structure of the compressor bracket, the frame tail cross beam and the water tank bracket and the torsional rigidity of the frame tail end, enhances the Z-direction dynamic rigidity of the frame at the front suspension bracket, improves the vibration isolation performance of the suspension, effectively ensures the NVH performance and improves the riding comfort.
Drawings
Fig. 1 is a schematic structural view of a conventional vehicle frame.
Fig. 2 is a schematic structural view of the present invention.
FIG. 3 is a schematic view of the tail beam assembly of the present invention.
Fig. 4 is a schematic view showing a structure of a compressor assembly according to the present invention.
Fig. 5 is a schematic structural view of a bracket assembly for a water tank according to the present invention.
FIG. 6 is a schematic view of an assembly of the present invention with a conventional frame.
Detailed Description
Specific embodiments of the present invention will be described below with reference to the accompanying drawings. Numerous details are set forth in the following description in order to provide a thorough understanding of the present invention, but it will be apparent to one skilled in the art that the present invention may be practiced without these details.
Referring to fig. 2, 3 and 6, a novel tail beam structure for a full-load passenger car underframe comprises a tail beam assembly 1, a compressor assembly 2 and a water tank bracket assembly 3, wherein a left suspension reinforcing plate 11 and a right suspension reinforcing plate 12 which are symmetrical to each other are arranged on the inner side of the tail beam assembly 1, and the left suspension reinforcing plate 11 and the right suspension reinforcing plate 12 are respectively connected with a left longitudinal beam 4 and a right longitudinal beam 5 of a frame; the left side of the tail beam assembly 1 is provided with a compressor assembly 2, and the right side is provided with a water tank bracket assembly 3.
Referring to fig. 2 and 3, the tail beam assembly 1 includes an upper beam 13 and a lower beam 14, left and right sides between the upper beam 13 and the lower beam 14 are connected by a plurality of upright posts 15, and middle parts are connected by two diagonal braces 16 symmetrical to each other; the left suspension reinforcement plate 11 and the right suspension reinforcement plate 12 are connected to the upper cross member 13, the lower cross member 14, and the column 15, respectively.
Referring to fig. 2 and 3, as a preferred embodiment: a first reinforcing plate 161 is disposed between the two diagonal braces 16, and the first reinforcing plate 161 is provided with a plurality of lightening holes 162.
Referring to fig. 2 and 4, the compressor assembly 2 includes a compressor base 21, compressor beams 22 and -shaped brackets 23, the two compressor beams 22 are connected by a column 24, a second reinforcing plate 241 is provided, and the two compressor beams 22 are detachably connected to the left side of the tail beam assembly 1. Wherein the second reinforcing plate 241 is provided with lightening holes 242.
Referring to fig. 2 and 4, as a preferred embodiment: the two compressor beams 22 are respectively mounted on the upper beam 13 and the lower beam 14 through the flange plate 10 and bolts (not shown in the figure).
Referring to fig. 2 and 5, the tank bracket assembly 3 includes a tank cross member 31, the tank cross members 31 are connected by a column 32, and a third reinforcing plate 321 is provided, and the tank cross members 31 are detachably connected to the right side of the tail cross member assembly 1. The third reinforcing plate 321 is also provided with lightening holes 322.
Referring to fig. 2 and 5, as a preferred embodiment: the two tank cross beams 31 are respectively mounted on the upper cross beam 13 and the lower cross beam 14 through the flange plate 10 and bolts (not shown in the figure).
The mounting method of the present invention will be described with reference to fig. 2, 3, 4, 5 and 6:
the invention is composed of a tail beam assembly 1, a compressor assembly 2 and a water tank bracket assembly 3, wherein the left ends of an upper beam 13 and a lower beam 14 of the tail beam assembly 1 are connected with a compressor beam 22 through flange plates 10 matched bolts (not shown in the figure), and the right ends are connected with a water tank beam 31 through flange plates 10 matched bolts (not shown in the figure). One side of the left suspension reinforcing plate 11 is welded with the upper cross member 13, the lower cross member 14 and the column 15, and the other side is connected with the upper straight bar 41, the lower straight bar 42, the column 43 and the suspension mounting plate 44 of the left side member 4 by bolts, respectively (the right suspension reinforcing plate 12 is mounted in the same manner as the left suspension reinforcing plate 11). The -shaped bracket 23 of the compressor assembly 2 is welded to the upper and lower straight bars 41 and 42 of the left side frame 4.
The arrangement and the installation mode of the left suspension reinforcing plate 11 effectively enhance the Z-direction rigidity of the junction of the tail beam assembly 1 and the left side (the left side of the left longitudinal beam 4) of the tail end of the frame; the diagonal braces 16 ensure uniform transition of the rigidity of the tail beam assembly 1; the mounting mode of the compressor assembly 2 and the tail beam assembly 1 overcomes the defect of traditional dislocation mounting, and improves the local torsional rigidity of the left side of the tail end of the frame around the X axis to a certain extent; the assemblies are lapped by adopting square steel, compared with the original thick and strong bracket, the X-direction size of the frame is reduced, and the torsional rigidity of the left side of the tail end of the frame is further enhanced (the right side of the tail end of the frame is the same). In addition, in order to ensure the bending rigidity of the compressor assembly 2 and the water tank bracket assembly 3, a reinforcing plate is arranged between the cross beams, and weight reducing holes are formed.
In summary, the invention greatly improves the Z-direction bending rigidity of the combined structure of the compressor bracket, the frame tail cross beam and the water tank bracket and the torsional rigidity of the frame tail end, thereby improving the Z-direction dynamic rigidity of the left front suspension bracket and the right front suspension bracket, improving the suspension vibration isolation rate and ensuring the NVH performance.
The foregoing is merely illustrative of specific embodiments of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modification of the present invention by using the design concept shall fall within the scope of the present invention.
Claims (4)
1. Novel tail beam structure that full-load passenger train chassis was used, its characterized in that: the device comprises a tail beam assembly, a compressor assembly and a water tank bracket assembly, wherein a left suspension reinforcing plate and a right suspension reinforcing plate which are symmetrical to each other are arranged on the inner side of the tail beam assembly, and the left suspension reinforcing plate and the right suspension reinforcing plate are respectively connected with a left longitudinal beam and a right longitudinal beam of a frame; the left side of the tail beam assembly is provided with the compressor assembly, and the right side of the tail beam assembly is provided with the water tank bracket assembly;
the tail beam assembly comprises an upper beam and a lower beam, wherein the left side and the right side between the upper beam and the lower beam are connected through a plurality of upright posts, and the middle part of the tail beam assembly is connected through two mutually symmetrical inclined struts; the left suspension reinforcing plate and the right suspension reinforcing plate are respectively connected with the upper cross beam, the lower cross beam and the upright post;
the compressor assembly comprises a compressor base, a compressor cross beam and a -shaped bracket, wherein the two compressor cross beams are connected through an upright post and are provided with a second reinforcing plate, and the two compressor cross beams are detachably connected to the left side of the tail cross beam assembly;
the water tank support assembly comprises a water tank cross beam, two water tank cross beams are connected through an upright post and are provided with a third reinforcing plate, and the two water tank cross beams are detachably connected to the right side of the tail cross beam assembly.
2. A novel tail beam structure for a full-load passenger car underframe as recited in claim 1, wherein: a first reinforcing plate is arranged between the two diagonal braces.
3. A novel tail beam structure for a full-load passenger car underframe as recited in claim 1, wherein: the two compressor cross beams are respectively arranged on the upper cross beam and the lower cross beam through flange plate matched bolts.
4. A novel tail beam structure for a full-load passenger car underframe as recited in claim 1, wherein: the two water tank cross beams are respectively arranged on the upper cross beam and the lower cross beam through flange plate matched bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810506860.0A CN108482487B (en) | 2018-05-24 | 2018-05-24 | Novel tail beam structure for full-bearing passenger car underframe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810506860.0A CN108482487B (en) | 2018-05-24 | 2018-05-24 | Novel tail beam structure for full-bearing passenger car underframe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108482487A CN108482487A (en) | 2018-09-04 |
| CN108482487B true CN108482487B (en) | 2023-07-04 |
Family
ID=63350737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810506860.0A Active CN108482487B (en) | 2018-05-24 | 2018-05-24 | Novel tail beam structure for full-bearing passenger car underframe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108482487B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111319680A (en) * | 2020-01-29 | 2020-06-23 | 洛阳智能农业装备研究院有限公司 | Trolley frame |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0443172A (en) * | 1990-06-11 | 1992-02-13 | Nissan Motor Co Ltd | Engine mount installation structure of automobile |
| CN101503099A (en) * | 2009-03-12 | 2009-08-12 | 中通客车控股股份有限公司 | Motor bus unitary body with large-sized rectangular tube underframe |
| CN103754102A (en) * | 2014-01-27 | 2014-04-30 | 安徽江淮汽车股份有限公司 | Right suspension for engine |
| CN105346381A (en) * | 2015-11-10 | 2016-02-24 | 安徽江淮汽车股份有限公司 | Gearbox suspension assembly |
| CN205468506U (en) * | 2016-04-09 | 2016-08-17 | 安徽安凯汽车股份有限公司 | Hybrid passenger train tail longeron assembly |
| CN205930233U (en) * | 2016-08-28 | 2017-02-08 | 安徽安凯汽车股份有限公司 | Rearmounted passenger car motor front end installation mechanism |
| CN208325380U (en) * | 2018-05-24 | 2019-01-04 | 厦门金龙联合汽车工业有限公司 | A kind of new-type transom beam structure of all-loading coach chassis |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2538954A (en) * | 2015-05-29 | 2016-12-07 | Ford Global Tech Llc | Engine mount assembly for a motor vehicle |
-
2018
- 2018-05-24 CN CN201810506860.0A patent/CN108482487B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0443172A (en) * | 1990-06-11 | 1992-02-13 | Nissan Motor Co Ltd | Engine mount installation structure of automobile |
| CN101503099A (en) * | 2009-03-12 | 2009-08-12 | 中通客车控股股份有限公司 | Motor bus unitary body with large-sized rectangular tube underframe |
| CN103754102A (en) * | 2014-01-27 | 2014-04-30 | 安徽江淮汽车股份有限公司 | Right suspension for engine |
| CN105346381A (en) * | 2015-11-10 | 2016-02-24 | 安徽江淮汽车股份有限公司 | Gearbox suspension assembly |
| CN205468506U (en) * | 2016-04-09 | 2016-08-17 | 安徽安凯汽车股份有限公司 | Hybrid passenger train tail longeron assembly |
| CN205930233U (en) * | 2016-08-28 | 2017-02-08 | 安徽安凯汽车股份有限公司 | Rearmounted passenger car motor front end installation mechanism |
| CN208325380U (en) * | 2018-05-24 | 2019-01-04 | 厦门金龙联合汽车工业有限公司 | A kind of new-type transom beam structure of all-loading coach chassis |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108482487A (en) | 2018-09-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202080335U (en) | Beam-free modularized passenger car underframe | |
| CN111216793A (en) | Novel steel frame type front auxiliary frame | |
| CN101850712A (en) | Automobile power assembly suspending cushion with vibration absorbing function | |
| CN108482487B (en) | Novel tail beam structure for full-bearing passenger car underframe | |
| CN104875596A (en) | Automotive power-train suspending device | |
| CN211167096U (en) | Preceding sub vehicle frame and vehicle | |
| CN111891219B (en) | Outer connected system of many suspensions on electric automobile | |
| CN111873774B (en) | Rear-mounted rear-drive system of electric automobile | |
| CN202827777U (en) | Automobile packaging support structure | |
| CN208325380U (en) | A kind of new-type transom beam structure of all-loading coach chassis | |
| CN202624392U (en) | Ring type reinforcing plate component on rear side wall and automobile | |
| CN206615057U (en) | Engine suspension soft pad assembly | |
| JP3379373B2 (en) | Frame structure for ultra low floor bus | |
| CN220842684U (en) | Support frame, sub vehicle frame, automobile body subassembly and vehicle of vehicle | |
| CN204587018U (en) | Rear secondary frame for vehicle | |
| CN219544888U (en) | Frame assembly | |
| CN216424001U (en) | New forms of energy motorcycle type shock absorber seat additional strengthening | |
| CN221316375U (en) | Welding front auxiliary frame for reinforcing rigidity of control arm | |
| CN216070199U (en) | Rear section connecting structure of semi-load-bearing vehicle frame | |
| CN218967023U (en) | Front end frame lightweight structure | |
| CN220390960U (en) | Suspension mounting structure and vehicle | |
| CN216374150U (en) | Novel mixed motor car engine suspension support | |
| CN214165124U (en) | Rear differential mounting structure and automobile with same | |
| CN214451338U (en) | Combined support and automobile | |
| CN217623759U (en) | Auxiliary frame of automobile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |