CN112498491A - Automobile chassis collision force transmission mechanism and force transmission method - Google Patents
Automobile chassis collision force transmission mechanism and force transmission method Download PDFInfo
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- CN112498491A CN112498491A CN202011330228.9A CN202011330228A CN112498491A CN 112498491 A CN112498491 A CN 112498491A CN 202011330228 A CN202011330228 A CN 202011330228A CN 112498491 A CN112498491 A CN 112498491A
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- force transmission
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- connecting rod
- auxiliary frame
- longitudinal beam
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 107
- 238000000034 method Methods 0.000 title claims description 29
- 230000007704 transition Effects 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 9
- 230000007547 defect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- 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
- B62D21/15—Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
- B62D21/152—Front or rear frames
- B62D21/155—Sub-frames or underguards
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
本发明涉及一种汽车底盘碰撞传力机构，包括：两个车身纵梁，由两个副车架纵梁和两个副车架横梁连接构成的副车架，四个一一对应设于副车架四个角部且分别与两个车身纵梁连接的安装管，两个用于与前舱地板连接且与两个副车架纵梁后端一一对应连接的上传力连接杆，两个用于与车身前门槛梁连接且与两个副车架纵梁后端下侧一一对应连接的下传力连接杆。所述的汽车底盘碰撞传力机构，将前副车架3纳入碰撞作用力的传力路径，碰撞力传力效果较好。
The invention relates to an automobile chassis collision force transmission mechanism, comprising: two body longitudinal beams, a sub-frame formed by connecting two sub-frame longitudinal beams and two sub-frame transverse beams, four of which are arranged in a one-to-one correspondence on the sub-frame The four corners of the frame are respectively connected to the two body longitudinal beams, and the two are used to connect with the front cabin floor and are connected to the rear end of the two sub-frame longitudinal beams in a one-to-one correspondence. The lower force transmission connecting rod is connected with the front rocker beam of the vehicle body and is connected with the lower sides of the rear ends of the two subframe longitudinal beams in a one-to-one correspondence. In the vehicle chassis collision force transmission mechanism, the front subframe 3 is included in the force transmission path of the collision force, and the collision force transmission effect is good.
Description
Technical Field
The invention relates to the technical field of automobile safety, in particular to an automobile chassis collision force transmission mechanism and a force transmission method.
Background
Chinese patent application No.: 201811625886.3 discloses a force transfer structure, which comprises a front floor threshold beam, a front floor lower longitudinal beam and a rear floor threshold beam; wherein, preceding floor threshold roof beam is connected to back floor threshold roof beam, and longeron and preceding floor threshold roof beam set up with non-parallel under the preceding floor, and the both ends of longeron are connected respectively in preceding floor threshold roof beam and back floor threshold roof beam under the preceding floor to longeron configuration under the preceding floor is: the distance between one end of the front floor lower longitudinal beam close to the rear floor threshold beam and the front floor threshold beam is smaller than the distance between the other end of the front floor lower longitudinal beam and the front floor threshold beam. According to the traditional force transmission structure, force is transmitted only through a vehicle body longitudinal beam at the front cabin of a vehicle body, the force transmission path is single, the requirements of vehicle body longitudinal beam structure design and material selection are improved, or on the basis of the scheme, an extension beam is additionally arranged in front of a front auxiliary frame of a chassis, although the collision force is decomposed/absorbed to some extent, the auxiliary frame only plays the roles of increasing the rigidity of the vehicle body longitudinal beam and slightly collapsing and absorbing energy, and the defect that the force transmission effect of the collision force is poor is overcome; therefore, the design of a force transmission path for bringing the front subframe into the collision acting force and a vehicle chassis collision force transmission mechanism and a force transmission method with good collision force transmission effect becomes a problem to be solved urgently.
Disclosure of Invention
The invention aims to overcome the defects that the existing force transmission structure only has the functions of increasing the rigidity of a vehicle body longitudinal beam and slightly collapsing and absorbing energy because a front auxiliary frame is not taken into a force transmission path of a collision acting force, and the force transmission effect of the collision force is poor, and provides a force transmission mechanism and a force transmission method for taking the front auxiliary frame into the force transmission path of the collision acting force, wherein the force transmission mechanism and the force transmission method for the collision of a vehicle chassis have a good force transmission effect.
The specific technical scheme of the invention is as follows:
an automotive chassis crash force transmission mechanism comprising: two automobile body longerons, the sub vehicle frame of constituteing is connected by two sub vehicle frame longerons and two sub vehicle frame crossbeams, and four one-to-one are located four bights of sub vehicle frame and are connected with two automobile body longeron respectively the installation pipe, two be used for with the front deck floor be connected and with two sub vehicle frame longeron rear end one-to-one be connected last power transmission connecting rod, two be used for with the automobile body before the threshold roof beam be connected and with two sub vehicle frame longeron rear end downside one-to-one.
Preferably, the upper force transmission connecting rod comprises: the device comprises a low plate, a high plate, two oblique transition plates and two side plates, wherein the high plate is provided with a plurality of mounting holes and is positioned at the rear side of the low plate; the distance between the opposite inner side ends of the two side plates is matched with the width of the rear end of the auxiliary frame longitudinal beam; the lower plate presses the upper side of the rear end of the auxiliary frame longitudinal beam, and the two side plates are located on the outer sides of the two side ends of the rear end of the auxiliary frame longitudinal beam in a one-to-one correspondence manner and are connected with the rear end of the auxiliary frame longitudinal beam.
Preferably, the rear end of the lower force transmission connecting rod inclines outwards; the front end of the lower force transmission connecting rod is provided with a front plane parallel to the cross beam of the auxiliary frame; the outer end of the rear end of the lower force transmission connecting rod is provided with a side plane parallel to the longitudinal beam of the auxiliary frame; the rear end of the lower force transmission connecting rod is provided with a plurality of connecting holes.
Preferably, the lower force transmitting connecting rod comprises: the lower end of the bottom plate is provided with two upper plates of side reinforcing plates which are respectively connected with the bottom plate.
The force transmission method of the automobile chassis collision force transmission mechanism is characterized in that the automobile chassis collision force transmission mechanism is the automobile chassis collision force transmission mechanism, and (1) two upper force transmission connecting rods are respectively connected with a front cabin floor through bolts, and two lower force transmission connecting rods are correspondingly connected with two automobile body front sill beams one by one through bolts; (2) in the frontal collision process of the automobile, collision force from a longitudinal beam of a front cabin of an automobile body is decomposed into three paths of force transmission, the collision force is transmitted to a floor of the front cabin through an upper force transmission connecting rod and transmitted to a sill beam of the front cabin of the automobile body through a lower force transmission connecting rod through an auxiliary frame besides being transmitted through the longitudinal beam of the automobile body, so that the collision force is better decomposed, the intrusion amount of parts of the front cabin to a cockpit is reduced, and the safety of personnel is ensured; (3) meanwhile, the front auxiliary frame is brought into a force transmission path of collision force, the auxiliary frame longitudinal beam is used as an extension beam extending backwards from the vehicle body longitudinal beam, and the energy absorption capacity of the vehicle body front cabin in the collision process can be further improved in the collapse process generated in the collision process.
Compared with the prior art, the invention has the beneficial effects that: the automobile chassis collision force transmission mechanism is characterized in that in the front collision process of an automobile, collision force from a front cabin longitudinal beam of the automobile body is decomposed into three paths of force transmission, the collision force is transmitted through the automobile body longitudinal beam, transmitted to a front cabin floor through an upper force transmission connecting rod and transmitted to a front sill beam of the automobile body through a lower force transmission connecting rod through an auxiliary frame, the front auxiliary frame is taken into a force transmission path of collision acting force, the force transmission effect of the collision force is good, the collision force is better decomposed, the intrusion of front cabin parts to a cockpit is reduced, the safety of personnel is guaranteed, meanwhile, the front auxiliary frame is taken into the force transmission path of the collision force, the auxiliary frame longitudinal beam serves as an extension beam extending backwards from the automobile body longitudinal beam, and the energy absorption capacity of the front cabin of the automobile body in the collision process can be further increased through the collapse process generated in. The upload force connection rod includes: the low plate is provided with a plurality of mounting holes and is positioned on the high plate at the rear side of the low plate, the two ends of the low plate and the rear end of the low plate and the front end of the high plate are integrally connected in a one-to-one correspondence mode to form a connected oblique transition plate, and the two upper ends of the low plate, the oblique transition plate and the high plate are welded to form side plates in a one-to-one correspondence mode, so that the strength and the rigidity are improved, and the connection with the front cabin floor is facilitated. The rear end of the lower force transmission connecting rod inclines outwards, the front end of the lower force transmission connecting rod is provided with a front plane parallel to the cross beam of the auxiliary frame, and the outer end of the rear end of the lower force transmission connecting rod is provided with a side plane parallel to the longitudinal beam of the auxiliary frame, so that the space occupation is reduced; the rear end of the lower force transmission connecting rod is provided with a plurality of connecting holes for facilitating installation; lower biography power connecting rod includes: the lower end of the bottom plate is provided with an upper plate of two side reinforcing plates which are respectively connected with the bottom plate, so that the strength and the rigidity are improved; the force transmission method of the automobile chassis collision force transmission mechanism can meet the requirement that the front auxiliary frame is brought into a force transmission path of collision acting force, and the force transmission effect of collision force is good.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention.
In the figure: the auxiliary frame longitudinal beam comprises an auxiliary frame longitudinal beam 1, an auxiliary frame cross beam 2, an auxiliary frame 3, a mounting pipe 4, an upper force transmission connecting rod 5, a lower force transmission connecting rod 6, a low plate 7, a mounting hole 8, a high plate 9, an oblique transition plate 10, a side plate 11, a fixing bolt 12, a nut 13, a front plane 14, a side plane 15, a connecting hole 16, a bottom plate 17, a side reinforcing plate 18 and an upper plate 19.
Detailed Description
The invention will be further described with reference to the drawings.
As shown in figure 1: an automotive chassis crash force transmission mechanism comprising: two automobile body longerons (not shown), the sub vehicle frame 3 that constitutes by two sub vehicle frame longerons 1 and two sub vehicle frame crossbeams 2 welding, four one-to-one locate sub vehicle frame 3 four bights and pass through bolted connection's erection tube 4 with two automobile body longerons respectively, two be used for being connected with front deck floor (not shown) and with two sub vehicle frame longeron 1 rear end one-to-one last power transmission connecting rod 5 that are connected, two be used for being connected with automobile body threshold front door beam (not shown) and with two sub vehicle frame longeron 1 rear end downside one-to-one lower power transmission connecting rod 6 that are.
In this embodiment:
the upper force-transmitting connecting rod 5 includes: the device comprises a low plate 7, a high plate 9 which is provided with a plurality of mounting holes 8 and is positioned at the rear side of the low plate 7, oblique transition plates 10 of which two ends are in one-to-one correspondence with the rear end of the low plate 7 and the front end of the high plate 9 to form a connection, side plates 11 of which two upper ends are in one-to-one correspondence with the two side ends of the low plate 7, the oblique transition plates 10 and the high plate 9, fixing bolts 12 and nuts 13; the distance between the opposite inner side ends of the two side plates 11 is in clearance fit with the width of the rear end of the auxiliary frame longitudinal beam 1; the lower plate 7 presses the upper side of the rear end of the auxiliary frame longitudinal beam 1, the two side plates 11 are located on the outer sides of the two side ends of the rear end of the auxiliary frame longitudinal beam 1 in a one-to-one correspondence mode, and a screw of the fixing bolt 12 penetrates through the side plates 11 and the rear end of the auxiliary frame longitudinal beam 1 and is in threaded connection with the nut 13.
The rear end of the lower force transmission connecting rod 6 inclines outwards; the front end of the lower force transmission connecting rod 6 is provided with a front plane 14 parallel to the cross beam of the auxiliary frame; the outer end of the rear end of the lower force transmission connecting rod 6 is provided with a side plane 15 parallel to the longitudinal beam of the auxiliary frame; the rear end of the lower force transmission connecting rod 6 is provided with a plurality of connecting holes 16.
The lower force transmission connecting rod 6 comprises: the bottom plate 17 has, at its lower end, two upper plates 19 of side reinforcing plates 18 integrally formed and welded to the bottom plate 17, respectively.
A force transmission method of an automobile chassis collision force transmission mechanism is characterized in that the automobile chassis collision force transmission mechanism is the automobile chassis collision force transmission mechanism, and (1) two upper force transmission connecting rods 5 are respectively connected with a front cabin floor through bolts, and two lower force transmission connecting rods 6 are correspondingly connected with two automobile body front sill beams one by one through bolts; (2) in the frontal collision process of the automobile, collision force from a longitudinal beam of a front cabin of an automobile body is decomposed into three paths of force transmission, the collision force is transmitted to a floor of the front cabin through an upper force transmission connecting rod 5 and transmitted to a sill beam of the front cabin of the automobile body through a lower force transmission connecting rod 6 through an auxiliary frame 3 besides being transmitted by the longitudinal beam of the automobile body, so that the collision force is better decomposed, the intrusion of parts of the front cabin to a cockpit is reduced, and the safety of personnel is ensured; (3) meanwhile, the front auxiliary frame 3 is brought into a force transmission path of collision force, the auxiliary frame longitudinal beam 1 serves as an extension beam extending backwards from the vehicle body longitudinal beam, and the energy absorption capacity of a front cabin of the vehicle body in the collision process can be further improved in the collapse process generated in the collision process.
The automobile chassis collision force transmission mechanism is characterized in that in the front collision process of an automobile, collision force from a front cabin longitudinal beam of the automobile body is decomposed into three paths of force transmission, the collision force is transmitted through the automobile body longitudinal beam, transmitted to a front cabin floor through an upper force transmission connecting rod and transmitted to a front sill beam of the automobile body through a lower force transmission connecting rod through an auxiliary frame, the front auxiliary frame is taken into a force transmission path of collision acting force, the force transmission effect of the collision force is good, the collision force is better decomposed, the intrusion of front cabin parts to a cockpit is reduced, the safety of personnel is guaranteed, meanwhile, the front auxiliary frame is taken into the force transmission path of the collision force, the auxiliary frame longitudinal beam serves as an extension beam extending backwards from the automobile body longitudinal beam, and the energy absorption capacity of the front cabin of the automobile body in the collision process can be further increased through the collapse process generated in. The upload force connection rod includes: the low plate is provided with a plurality of mounting holes and is positioned on the high plate at the rear side of the low plate, the two ends of the low plate and the rear end of the low plate and the front end of the high plate are integrally connected in a one-to-one correspondence mode to form a connected oblique transition plate, and the two upper ends of the low plate, the oblique transition plate and the high plate are welded to form side plates in a one-to-one correspondence mode, so that the strength and the rigidity are improved, and the connection with the front cabin floor is facilitated. The rear end of the lower force transmission connecting rod inclines outwards, the front end of the lower force transmission connecting rod is provided with a front plane parallel to the cross beam of the auxiliary frame, and the outer end of the rear end of the lower force transmission connecting rod is provided with a side plane parallel to the longitudinal beam of the auxiliary frame, so that the space occupation is reduced; the rear end of the lower force transmission connecting rod is provided with a plurality of connecting holes for facilitating installation; lower biography power connecting rod includes: the lower end of the bottom plate is provided with an upper plate of two side reinforcing plates which are respectively connected with the bottom plate, so that the strength and the rigidity are improved; the force transmission method of the automobile chassis collision force transmission mechanism can meet the requirement that the front auxiliary frame is brought into a force transmission path of collision acting force, and the force transmission effect of collision force is good.
In addition to the above embodiments, the technical features or technical data of the present invention may be reselected and combined to form new embodiments within the scope of the claims and the specification of the present invention, which are all realized by those skilled in the art without creative efforts, and thus, the embodiments of the present invention not described in detail should be regarded as specific embodiments of the present invention and are within the protection scope of the present invention.
Claims (5)
1. An automotive chassis crash force transmission mechanism comprising: two automobile body longerons are connected the sub vehicle frame that constitutes by two sub vehicle frame longerons and two sub vehicle frame crossbeams, and four one-to-one are located four bights of sub vehicle frame and are connected the installation pipe with two automobile body longerons respectively, characterized by, vehicle chassis collision power transmission mechanism still include: two are used for being connected with the front deck floor and the last biography power connecting rod of being connected with two sub vehicle frame longeron rear ends one-to-one, two are used for being connected with the automobile body preceding threshold roof beam and the lower biography power connecting rod of being connected with two sub vehicle frame longeron rear end downside one-to-one.
2. The chassis crash force transfer mechanism of claim 1 wherein said force transfer linkage comprises: the device comprises a low plate, a high plate, two oblique transition plates and two side plates, wherein the high plate is provided with a plurality of mounting holes and is positioned at the rear side of the low plate; the distance between the opposite inner side ends of the two side plates is matched with the width of the rear end of the auxiliary frame longitudinal beam; the lower plate presses the upper side of the rear end of the auxiliary frame longitudinal beam, and the two side plates are located on the outer sides of the two side ends of the rear end of the auxiliary frame longitudinal beam in a one-to-one correspondence manner and are connected with the rear end of the auxiliary frame longitudinal beam.
3. A vehicle chassis crash force transfer mechanism according to claim 1 or claim 2 wherein the rear end of the lower force transfer connecting rod is inclined outwardly; the front end of the lower force transmission connecting rod is provided with a front plane parallel to the cross beam of the auxiliary frame; the outer end of the rear end of the lower force transmission connecting rod is provided with a side plane parallel to the longitudinal beam of the auxiliary frame; the rear end of the lower force transmission connecting rod is provided with a plurality of connecting holes.
4. The vehicle chassis crash force transfer mechanism of claim 3 wherein said lower force transfer linkage comprises: the lower end of the bottom plate is provided with two upper plates of side reinforcing plates which are respectively connected with the bottom plate.
5. A force transmission method of an automobile chassis collision force transmission mechanism is characterized in that (1) two upper force transmission connecting rods are respectively connected with a front cabin floor through bolts, and two lower force transmission connecting rods are correspondingly connected with two automobile body front sill beams through bolts; (2) in the frontal collision process of the automobile, collision force from a longitudinal beam of a front cabin of an automobile body is decomposed into three paths of force transmission, the collision force is transmitted to a floor of the front cabin through an upper force transmission connecting rod and transmitted to a sill beam of the front cabin of the automobile body through a lower force transmission connecting rod through an auxiliary frame besides being transmitted through the longitudinal beam of the automobile body, so that the collision force is better decomposed, the intrusion amount of parts of the front cabin to a cockpit is reduced, and the safety of personnel is ensured; (3) meanwhile, the front auxiliary frame is brought into a force transmission path of collision force, the auxiliary frame longitudinal beam is used as an extension beam extending backwards from the vehicle body longitudinal beam, and the energy absorption capacity of the vehicle body front cabin in the collision process can be further improved in the collapse process generated in the collision process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202011330228.9A CN112498491A (en) | 2020-11-24 | 2020-11-24 | Automobile chassis collision force transmission mechanism and force transmission method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011330228.9A CN112498491A (en) | 2020-11-24 | 2020-11-24 | Automobile chassis collision force transmission mechanism and force transmission method |
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| CN112498491A true CN112498491A (en) | 2021-03-16 |
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Address after: 310051 1st and 6th floors, no.451 Internet of things street, Binjiang District, Hangzhou City, Zhejiang Province Applicant after: Zhejiang Zero run Technology Co.,Ltd. Address before: 310051 1st and 6th floors, no.451 Internet of things street, Binjiang District, Hangzhou City, Zhejiang Province Applicant before: ZHEJIANG LEAPMOTOR TECHNOLOGY Co.,Ltd. |
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