CN115723849A - Front suspension system compatible with fuel oil and hybrid vehicle type - Google Patents
Front suspension system compatible with fuel oil and hybrid vehicle type Download PDFInfo
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- CN115723849A CN115723849A CN202211464994.3A CN202211464994A CN115723849A CN 115723849 A CN115723849 A CN 115723849A CN 202211464994 A CN202211464994 A CN 202211464994A CN 115723849 A CN115723849 A CN 115723849A
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Abstract
The invention discloses a front suspension system compatible with fuel oil and a hybrid vehicle type, which comprises: the front auxiliary frame assembly, the front steering knuckle assembly, the front lower control arm assembly, the stabilizer bar with connecting rod assembly and the front sliding column assembly; the front auxiliary frame assembly is provided with a reserved engine suspension mounting hole and a reserved hybrid suspension mounting point and is used for being compatible with fuel vehicles and hybrid vehicles; the stabilizer bar with connecting rod assembly comprises a fuel vehicle type stabilizer bar with connecting rod assembly and a hybrid vehicle type stabilizer bar with connecting rod assembly, the fuel vehicle type stabilizer bar with connecting rod assembly is used for fuel vehicle type, the hybrid vehicle type stabilizer bar with connecting rod assembly is used for hybrid vehicle type, and the rod diameter of the fuel vehicle type stabilizer bar with connecting rod assembly or the hybrid vehicle type stabilizer bar with connecting rod assembly is matched with the tilting requirement of the whole vehicle; the invention can meet the requirement of a common platform of fuel vehicles and hybrid vehicles of MPV vehicles, and can be compatibly expanded upwards and downwards to develop other subsequent vehicles.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to a front suspension system compatible with fuel oil and hybrid vehicles.
Background
At present, as the competition in the automobile industry becomes stronger, each large manufacturer can reduce the development cost and material cost by the method as much as possible, and meanwhile, the automobile is required to achieve excellent driving control and comfort. Due to the impact of new energy, various vehicle types seek new energy or hybrid power forms, however, fuel vehicles still have certain markets. There is a need for a front suspension system that is compatible with fuel and hybrid power systems, while meeting the requirements of higher load capacity, better ride performance, and platform expandability. The existing technology generally has the problems of high cost, high weight, poor comfort, poor safety and the like.
Disclosure of Invention
The invention aims to provide a front suspension system compatible with fuel oil and hybrid electric vehicles, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a front suspension system compatible with fuel and hybrid vehicle models, comprising:
the front auxiliary frame assembly is provided with a reserved engine suspension mounting hole and a reserved hybrid suspension mounting point and is used for being compatible with fuel vehicles and hybrid vehicles;
the middle part of the front steering knuckle assembly is connected with the hub unit;
the front lower control arm assembly is respectively connected with the vehicle body, the front steering knuckle assembly and the front auxiliary frame assembly;
the stabilizer bar belt connecting rod assembly is respectively connected with the front auxiliary frame assembly and the front sliding column assembly, the stabilizer bar belt connecting rod assembly comprises a fuel vehicle type stabilizer bar belt connecting rod assembly and a mixed vehicle type stabilizer bar belt connecting rod assembly, the fuel vehicle type stabilizer bar belt connecting rod assembly is used for fuel vehicle types, the mixed vehicle type stabilizer bar belt connecting rod assembly is used for mixed power vehicle types, the fuel vehicle type stabilizer bar belt connecting rod assembly and the mixed vehicle type stabilizer bar belt connecting rod assembly are arranged in the same direction, and the rod diameter of the fuel vehicle type stabilizer bar belt connecting rod assembly or the mixed vehicle type stabilizer bar belt connecting rod assembly is matched with the side-tipping requirement of the whole vehicle;
a front strut assembly connected with the front knuckle assembly.
Further, the front subframe assembly includes:
an impact beam;
the support frame is connected with the anti-collision beam;
ingot roof beam sub vehicle frame, braced frame with ingot roof beam sub vehicle frame connects, engine suspension mounting hole and thoughtlessly move the suspension mounting point set up in on the ingot roof beam sub vehicle frame.
Further, the method also comprises the following steps:
the press-fitting circular suspension is connected with the engine suspension mounting hole and is connected with the engine through a connecting rod;
one end of the hybrid connecting rod is connected with the hybrid suspension mounting point, and the other end of the hybrid connecting rod is connected with the gearbox;
when the press-fit circular suspension is used for a fuel vehicle type, the press-fit circular suspension is connected with an engine through a connecting rod; when the press-fitting circular suspension is used for a hybrid electric vehicle, the press-fitting circular suspension is connected with an engine through a connecting rod, one end of the hybrid connecting rod is connected with a mounting point of the hybrid suspension, and the other end of the hybrid connecting rod is connected with a gearbox.
Further, the anti-collision beam comprises a support plate and two energy absorption boxes; the supporting frame comprises a left longitudinal beam, a right longitudinal beam and a cross beam; the supporting plate is connected with the two energy absorption boxes, the two energy absorption boxes are respectively connected with the left longitudinal beam and the right longitudinal beam, two ends of the cross beam are respectively connected with the left longitudinal beam and the right longitudinal beam, and the left longitudinal beam and the right longitudinal beam are respectively connected with the ingot beam auxiliary frame.
Furthermore, the hub unit comprises a hub bearing, the front knuckle assembly is provided with a hub bearing mounting hole and four spherical bolt holes, the hub bearing is arranged in the hub bearing mounting hole and is fixed with the hub bearing through the four spherical bolt holes, and a dust blocking disc is clamped between the front knuckle assembly and the hub bearing; the front steering knuckle assembly is connected with the front lower control arm assembly through the lower cylindrical groove, the upper cylindrical groove is formed above the axis of the hub bearing mounting hole, and the front steering knuckle assembly is connected with the front sliding column assembly through the upper cylindrical groove.
Further, the lower front control arm assembly includes:
the control arm body is of an A-shaped structure; the control arm body is provided with a first side wall, a second side wall and a third side wall, the first side wall, the second side wall and the third side wall are connected in pairs, and the first side wall, the second side wall and the third side wall are thinned from thickness to inside of the control arm body;
the ball pin is arranged at the joint of the first side wall and the third side wall and is connected with the lower cylindrical groove;
the front bushing assembly comprises a front rubber bushing which is pressed at the joint of the first side wall and the second side wall;
rear bushing assembly, rear bushing assembly includes stud, back bush and rear bushing support, second limit wall and third limit wall junction are provided with the screw hole, stud one end screw thread with the screw hole spiro union, rear bushing cover is established on the stud, the nut that rear bushing passes through stud other end spiro union is fixed on the control arm body, rear bushing support cover is established on the rear bushing, the rear bushing with rear bushing support assembles through interference fit, rear bushing support is provided with automobile body mounting hole and sub vehicle frame mounting hole, rear bushing support passes through automobile body mounting hole and body connection, through sub vehicle frame mounting hole with preceding sub vehicle frame assembly is connected.
Further, the front suspension system compatible with fuel oil and hybrid vehicles changes the wheel track of the vehicle by changing the length of the first side wall, so that the requirement of matching different vehicle widths is met.
Further, the front strut assembly includes:
the front shock absorber assembly comprises a piston rod, a piston, a shock absorber outer cylinder and a connecting rod support, the piston rod and the piston are correspondingly arranged, the piston rod is connected with the piston, the shock absorber outer cylinder is provided with a sliding cavity, the piston can move in the sliding cavity, the piston rod can do telescopic motion at the upper end of the front shock absorber assembly, the connecting rod support is arranged on the outer wall of the front shock absorber outer cylinder, and the lower end of the front shock absorber assembly is in interference clamping fit with the upper cylindrical groove of the front steering knuckle assembly;
the lower spring cushion is arranged at the upper end of the front shock absorber assembly;
the lower end of the spring is assembled with the front shock absorber assembly through the lower spring cushion, and the lower end of the spring is provided with a lift range;
the lower part of the axial thrust bearing is attached to the upper end of the spring, and the upper end of the spring has no lift range;
the upper end of the dust cover is clamped with the axial thrust bearing, and the lower side of the dust cover is clamped with the front shock absorber assembly;
the axial thrust bearing and the front upper suspension are axially positioned through a positioning pin, the upper end of the axial thrust bearing is attached to an upper suspension surface and is in axial interference fit, and the piston rod and the upper suspension are fixed through a bolt;
the buffer block, the buffer block inboard and piston rod interference fit, the outside and last suspension interference fit.
Further, the front shock absorber assembly is provided with an oil seal, and the oil seal is connected with the outer cylinder of the shock absorber and used for sealing the sliding cavity; the axial thrust bearing and the contact plane formed by the attachment of the upper end of the spring and the front upper suspension are provided with included angles, so that the spring provides a certain lateral supporting force for the whole vehicle to neutralize the lateral force at the piston and the oil seal.
Further, the stabilizer bar strap connecting rod assembly includes:
the stabilizer bar assembly comprises a stabilizer bar, two stabilizer bar bushings and a stabilizer bar cover plate, wherein the two stabilizer bar bushings are sleeved on the stabilizer bar and are fixedly connected with the stabilizer bar;
the stabilizer bar connecting rod, the stabilizer bar connecting rod is upper and lower double-ball structure, and the upper end is provided with the upside bulb, and the lower extreme is provided with the downside bulb, connecting rod leg joint on upside bulb and the shock absorber, downside bulb and stabilizer bar assembly are connected.
Compared with the prior art, the invention has the beneficial effects that: the invention can meet the requirement of a common platform of fuel vehicles and hybrid vehicles of MPV vehicles, and can be compatibly expanded upwards and downwards to develop other subsequent vehicles; the parts of the front suspension system are made of lightweight materials, so that the weight is light when the load is high; the front suspension can change the wheel track of the front suspension by adopting front lower control arms with different lengths, so that the platform development of multiple vehicle types is realized; the front suspension auxiliary frame adopts a three-section structure, and the collision safety of the whole vehicle is improved.
Drawings
FIG. 1 is a schematic structural connection diagram of a fuel and hybrid vehicle compatible front suspension system according to an embodiment of the present invention;
FIG. 2 is a schematic structural connection diagram of a front subframe assembly according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a sub-frame of a shoe-shaped ingot beam in an embodiment of the invention;
FIG. 4 is a schematic view of a structural connection of the front lower control arm assembly according to an embodiment of the present invention;
FIG. 5 is an exploded view of the front lower control arm assembly in accordance with an embodiment of the present invention;
FIG. 6 is a schematic structural view of a front knuckle assembly in an embodiment of the present invention;
FIG. 7 is a schematic view of a front strut assembly structural connection in an embodiment of the present invention;
in the figure: 100. a front subframe assembly; 200. a front knuckle assembly; 300. a front lower control arm assembly; 400. the stabilizer bar is provided with a connecting rod assembly; 500. a front strut assembly; 110. an anti-collision beam; 120. a support frame; 130. the auxiliary frame of the ingot beam; 140. pressing and mounting the circular suspension; 150. a hybrid connecting rod; 210. a hub bearing mounting hole; 220. spherical bolt holes; 230. a lower cylindrical groove; 240. feeding a cylindrical groove; 310. a control arm body; 320. a ball stud; 330. a front bushing assembly; 340. a rear bushing assembly; 410. a stabilizer bar assembly; 420. a stabilizer bar connecting rod; 510. a front shock absorber assembly; 520. a soft cushion under the spring; 530. a spring; 540. an axial thrust bearing; 550. a dust cover; 560. front upper suspension; 570. a buffer block; 111. a support plate; 112. an energy absorption box; 121. a left stringer; 122. a right stringer; 123. a cross beam; 131. an engine mount mounting hole; 132. a hybrid suspension mounting point; 141. a suspension link; 311. a first side wall; 312. a second side wall; 313. a third side wall; 331. a front rubber bushing; 341. a stud; 342. a rear bushing; 343. a rear bushing bracket; 411. a stabilizer bar; 412. a stabilizer bar bushing; 413. a cover plate of the stabilizer bar; 421. an upper ball head; 422. a lower ball head; 511. a piston rod; 512. an outer cylinder of the shock absorber; 513. a connecting rod bracket; 3431. a vehicle body mounting hole; 3432. sub vehicle frame mounting hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
The suspension described by the invention is in a Macpherson suspension system, and in order to better explain the characteristics of the patent, the invention also specifically explains the relation between a hybrid drive system and a fuel oil drive system and the suspension system.
Referring to the attached drawings of the specification, the invention provides a technical scheme: a front suspension system compatible with fuel oil and hybrid vehicle types comprises:
the front auxiliary frame assembly 100 is provided with a reserved engine suspension mounting hole 131 and a reserved hybrid suspension mounting point 132, and is used for being compatible with fuel vehicles and hybrid vehicles;
the middle part of the front steering knuckle assembly 200 is connected with the hub unit;
specifically, the front steering knuckle assembly 200 mainly serves to connect the front lower control arm assembly 300 and the front strut assembly 500, and provides mounting positions for wheels, bearings and brake calipers; the function of the connecting rod assembly is to provide a connecting position for the front lower control arm assembly 300, the stabilizer bar strap connecting rod assembly 400 and the steering system.
The front lower control arm assembly 300 is connected with the vehicle body, the front steering knuckle assembly 200 and the front auxiliary frame assembly 100 respectively;
specifically, the lower front control arm assembly 300 is mainly used for controlling the movement track of the wheel, providing a mounting point for other parts, and transmitting the force of the ground acting on the wheel.
The stabilizer bar belt connecting rod assembly 400 is connected with the front subframe assembly 100 and the front sliding column assembly 500 respectively, the stabilizer bar belt connecting rod assembly 400 comprises a fuel vehicle type stabilizer bar belt connecting rod assembly and a hybrid vehicle type stabilizer bar belt connecting rod assembly, the fuel vehicle type stabilizer bar belt connecting rod assembly is used for a fuel vehicle type, the hybrid vehicle type stabilizer bar belt connecting rod assembly is used for a hybrid vehicle type, the fuel vehicle type stabilizer bar belt connecting rod assembly and the hybrid vehicle type stabilizer bar belt connecting rod assembly are arranged in the same direction, and the rod diameter of the fuel vehicle type stabilizer bar belt connecting rod assembly or the hybrid vehicle type stabilizer bar belt connecting rod assembly is matched with the roll requirement of the whole vehicle;
specifically, the stabilizer bar with connecting rod assembly 400 is composed of a fuel vehicle type stabilizer bar with connecting rod assembly and a hybrid vehicle type stabilizer bar with connecting rod assembly, in order to reduce manufacturing and assembly costs to the maximum extent, the fuel and hybrid stabilizer bar systems are arranged in the same direction, and different rod diameters are matched according to the roll requirements of the whole vehicle. The stabilizer link belt connecting rod assembly 400 mainly functions to suppress the roll motion of the vehicle body by the torsional rigidity of the stabilizer link itself.
A front strut assembly 500, the front strut assembly 500 being connected to the front knuckle assembly 200.
In the above embodiment, the front suspension system can be divided into a fuel vehicle type front suspension system and a hybrid vehicle type front suspension system, and the structural components of the two systems are both one, and are also consistent with the structure of vehicle body installation, and the hard points are also arranged identically. In order to adapt to different forms of power assemblies, the invention performs special treatment on the structure of the auxiliary frame: the auxiliary frame structure is additionally provided with a set of hybrid power system suspension installation position, so that the seamless connection between the auxiliary frame structure hybrid vehicle type and the fuel vehicle type can be realized. Through the measures, the front suspension system can realize the common platform development of fuel oil and hybrid vehicle types. Specifically, the auxiliary frame is provided with mounting positions of a steering gear and a stabilizer bar, and the lower surface of the auxiliary frame is provided with mounting holes of a bottom guard plate.
The front sub-frame, the front sliding column and the front steering knuckle in the front suspension system are universal parts for multiple projects, and the change of the wheel track of a vehicle can be realized by using front lower control arm assemblies with different lengths. The front auxiliary frame is provided with a steering gear mounting point capable of providing a plurality of mounting angles, so that the steering gear can realize different mounting angles under the condition of completely borrowing hardware, and the front auxiliary frame is suitable for different man-machine arrangement requirements. The suspension system can be used for the development requirements of hybrid SUV models and is also suitable for the development requirements of cars. By the aid of the measures, development requirements of mixed movement and fuel vehicles of the same vehicle type can be met, upward and downward compatible expansion can be achieved, development of vehicles of different sizes and different forms is achieved, and universalization is really achieved. And (4) platform development.
Optionally, the front subframe assembly 100 comprises:
an impact beam 110;
a support frame 120, the impact beam 110 being connected to the support frame 120;
ingot roof beam sub vehicle frame 130, braced frame 120 with ingot roof beam sub vehicle frame 130 is connected, engine mount hole 131 and thoughtlessly move suspension mounting point 132 set up in on the ingot roof beam sub vehicle frame 130.
Specifically, the ingot beam sub vehicle frame is solid cast aluminum alloy material, compact structure, has still arranged height sensor on the ingot beam, has realized height sensor's location and installation through utilizing last mounting surface of ingot beam and machine with the hole, arranges very ingenious, realizes reasonable firm installation with minimum space in the cabin space of inch gold.
In the above-mentioned embodiment, preceding crashproof roof beam, front beam, left and right sides longeron on the preceding sub vehicle frame assembly all can be dismantled alone and change, after the collision serious damage appears, can change local partly spare part, avoid changing big assembly and cause the wasting of resources. To sum up, the structure and the arrangement characteristics of the front auxiliary frame assembly enable the suspension system to have good collision safety, maintenance convenience and low-cost maintenance effect.
Optionally, the method further comprises:
the press-fitting circular suspension 140 is connected with the engine suspension mounting hole 131, and the press-fitting circular suspension 140 is connected with the engine through a suspension connecting rod 141;
one end of the hybrid connecting rod 150 is connected with the hybrid suspension mounting point 132, and the other end of the hybrid connecting rod 150 is connected with the gearbox;
when the press-fitting circular suspension 140 is used for a fuel vehicle type, the press-fitting circular suspension is connected with an engine through a suspension connecting rod 141; when the hybrid power vehicle is used for a hybrid power vehicle, the press-fitting circular suspension 140 is connected with an engine through a suspension connecting rod 141, one end of the hybrid connecting rod 150 is connected with the hybrid suspension mounting point 132, and the other end of the hybrid connecting rod is connected with a gearbox.
Optionally, the impact beam 110 includes a support plate 111 and two crash boxes 112; the support frame 120 comprises a left longitudinal beam 121, a right longitudinal beam 122 and a cross beam 123; the supporting plate 111 is connected with the two energy absorption boxes 112, the two energy absorption boxes 112 are respectively connected with the left longitudinal beam 121 and the right longitudinal beam 122, two ends of the cross beam 123 are respectively connected with the left longitudinal beam 121 and the right longitudinal beam 122, and the left longitudinal beam 121 and the right longitudinal beam 122 are respectively connected with the ingot beam auxiliary frame 130.
Preferably, the left longitudinal beam 121 comprises a left connecting block 1211 and a left beam body 1212; the left connecting block 1211 and the left beam body 1212 are connected through welding; the right longitudinal beam 122 comprises a right connecting block 1221 and a right beam body 1222, the right connecting block 1221 and the right beam body 1222 are connected by welding, and the two energy-absorbing boxes 112 are respectively fixedly connected with the left connecting block 1211 and the right connecting block 1221 by bolts; two ends of the cross beam 123 are respectively connected with the left connecting block 1211 and the right connecting block 1221 through bolts.
Specifically, the front subframe assembly 100 is composed of an anti-collision beam 110, an energy absorption box 112, a left connecting block 1211, a right connecting block 1221, a left beam body 1212, a right beam body 1222, a cross beam 123 and a shoe beam subframe 130, wherein the anti-collision beam 110, the energy absorption box 112 and the support plate 111 are made of aluminum profiles and are welded to form the anti-collision beam; the left connecting block 1211 and the right connecting block 1221 are castings, and respectively form a left longitudinal beam and a right longitudinal beam with a left beam body 1212 and a right beam body 1222 which are formed by three-dimensionally bending aluminum profiles; the cross beam 123 is an extruded section and forms a front cross beam after being bent; the ingot beam auxiliary frame 130 is made of cast aluminum alloy material, and front and rear points, a stabilizer bar mounting point and a steering engine mounting point are symmetrically arranged on the ingot beam auxiliary frame. The front lower control arm front mounting point is a double-lug structure 133, the double-lug structure 133 comprises a front lug 1331 and a rear lug 1332, the front lug 1331 is provided with a longitudinal beam connecting seat 13311 to be connected with a longitudinal beam, and the rear lug 1332 is provided with a vehicle body mounting seat 13321 to be fixedly connected with a vehicle body. The rest mounting points are of a machining thread structure.
In the above embodiment, the foremost structure of the front subframe assembly is an impact beam, and the impact beam is connected with the left and right longitudinal beams through bolts. The anti-collision beam is made of three different aluminum alloy extrusion materials and is welded together through a robot. The front structure of the anti-collision beam is an arc-shaped support plate with a cross section in a structure like a Chinese character 'ri', the rear surface of the anti-collision beam is provided with a square energy absorption load, and finally a support flat plate is arranged. The energy absorption box is provided with an undulating pit for accurately controlling the energy absorption energy. The energy absorption box and the left and right longitudinal beams can deform and absorb energy during collision, so that the energy absorbed by the whole vehicle during collision is improved, and the collision safety of the whole vehicle is improved. The auxiliary frame anti-collision beam and the whole vehicle anti-collision beam can provide enough collision area when collision occurs, so that a collided object is better protected, and serious damage to the collided object is avoided. The middle structure of the front auxiliary frame assembly is a left longitudinal beam and a right longitudinal beam which are formed by bending aluminum profiles and welding cast aluminum brackets, and the structure provides a plurality of mounting points for the front auxiliary frame assembly, so that the overall strength of the auxiliary frame is improved; the left and right longitudinal beams are connected with the auxiliary frame of the ingot beam through bolts; an auxiliary frame cross beam is arranged between the left longitudinal beam and the right longitudinal beam and connected with the left longitudinal beam and the right longitudinal beam, so that the transverse rigidity of a vehicle body can be improved, the supporting strength can be improved during small offset collision, and the deformation is reduced; meanwhile, an installation fulcrum is provided for a cooling water pump, an air inlet pipeline and the like of the whole vehicle on the auxiliary frame cross beam, and multiple purposes are achieved.
Optionally, the hub unit includes a hub bearing, the front knuckle assembly 200 is provided with a hub bearing mounting hole 210 and four spherical bolt holes 220, the hub bearing is disposed in the hub bearing mounting hole 210 and fixed to the hub bearing through the four spherical bolt holes 220, and a dust blocking disc is sandwiched between the front knuckle assembly 200 and the hub bearing; a lower cylindrical groove 230 is arranged below the axis of the hub bearing mounting hole 210, the front knuckle assembly 200 is connected with a front lower control arm assembly 300 through the lower cylindrical groove 230, an upper cylindrical groove 240 is arranged above the axis of the hub bearing mounting hole 210, and the front knuckle assembly 200 is connected with a front strut assembly 500 through the upper cylindrical groove 240.
In the embodiment, the front steering knuckle assembly is made of cast aluminum alloy, the main body structure is a claw, the middle position of the front steering knuckle assembly is mounted with the bearing through four spherical bolt holes, and the dust blocking disc is clamped between the steering knuckle and the bearing, so that the steering knuckle is prevented from protruding out of the mounting structure to reduce weight; the lower part of the wheel axis is assembled with a control arm ball stud through a cylindrical groove, and the upper part of the wheel axis is also assembled with the outer barrel of the shock absorber in the same way. The rear side of the wheel axis is matched with an outer tie rod ball pin of the steering gear through a knuckle arm press-fitting steel bushing 250; the knuckle has two caliper mounting tabs 260 arranged in front of the vehicle to fit with the caliper.
Optionally, the lower front control arm assembly 300 comprises:
the control arm comprises a control arm body 310, wherein the control arm body 310 is of an A-shaped structure; the control arm body 310 is provided with a first side wall 311, a second side wall 312 and a third side wall 313, the first side wall 311, the second side wall 312 and the third side wall 313 are connected in pairs, and the first side wall 311, the second side wall 312 and the third side wall 313 are thinned from thickness to thickness towards the inside of the control arm body 310;
a ball stud 320, wherein the ball stud 320 is disposed at the junction of the first side wall 311 and the third side wall 312, and the ball stud 320 is connected to the lower cylindrical groove 230;
a front bushing assembly 330, wherein the front bushing assembly 330 includes a front rubber bushing 331, and the front rubber bushing 331 is press-fitted to a joint of the first side wall 311 and the second side wall 312;
the rear bushing assembly 340 includes a stud 341, a rear bushing 342 and a rear bushing bracket 343, a threaded hole is provided at a joint of the second side wall 312 and the third side wall 313, one end of the stud 341 is screwed with the threaded hole, the rear bushing 342 is sleeved on the stud 341, the rear bushing 342 is fixed on the control arm body 310 by a nut screwed to the other end of the stud 341, the rear bushing bracket 343 is sleeved on the rear bushing 342, the rear bushing 342 is assembled with the rear bushing bracket 343 by interference fit, the rear bushing bracket 343 is provided with a vehicle body mounting hole 3431 and a subframe mounting hole 3432, and the rear bushing bracket is connected with a vehicle body by the vehicle body mounting hole 3431 and is connected with the front subframe assembly 100 by the subframe mounting hole 3432.
In the above embodiment, the control arm body is integrally formed by an aerospace-grade aluminum alloy forging material, and is a right-angled triangular structure when viewed from the lower part of the vehicle, wherein the long side of the control arm body is arranged at the rear side of the wheel to bear the force in the front-rear direction, and meanwhile, the front lower control arm assembly, the front sliding column and the steering knuckle assembly are combined with the vehicle body to form a triangular structure in the vertical direction to bear the force in the upper-lower direction and the lateral direction of the wheel; meanwhile, the control arm body structure has a unique design: the deformation direction of the control arm body under longitudinal force is accurately controlled through special design on the upper part and the lower part of a stress plane, so that the control arm body is made of materials which are bent upwards, the ball head pin can meet the stress of a strong position after being bent by the large impact load control arm, the structural integrity of the ball head assembly of the control arm is protected under the condition of user misoperation such as high-speed drop pit of the vehicle, and the vehicle can have the driving capacity and cannot break a shaft. The arrangement and the structural design of the front lower control arm assembly provide excellent dynamic performance of the vehicle, meanwhile, the ingenious structural design further improves the safety of the whole vehicle, the number of parts of a front suspension system can be reduced, the structure is more compact, and the cost is convenient to control.
Alternatively, the fuel and hybrid vehicle compatible front suspension system changes the vehicle track by changing the length of the first side wall 311, thereby meeting the requirement of matching different vehicle widths.
In the embodiment, the suspension system can be matched with front lower control arm assemblies with different lengths so as to adapt to different vehicle width requirements, and platform development is realized.
Optionally, front strut assembly 500 comprises:
the front shock absorber assembly 510 comprises a piston rod 511, a piston, a shock absorber outer cylinder 512 and a connecting rod support 513, wherein the piston rod 511 is connected with the piston, the shock absorber outer cylinder 513 is provided with a sliding cavity, the piston can move in the sliding cavity, the piston rod 511 can do telescopic motion at the upper end of the front shock absorber assembly 510, the connecting rod support 513 is arranged on the outer wall of the front shock absorber outer cylinder 512, and the lower end of the front shock absorber assembly 510 is in interference clamping fit with the upper cylindrical groove 240 of the front steering knuckle assembly 200;
specifically, the front shock absorber assembly is a main component that consumes the wheel-hop energy, preventing the vehicle body from jumping up while providing sufficient support to the vehicle in cornering, rolling, etc., and preventing discomfort from being caused to the occupant.
A lower spring cushion 520, said lower spring cushion 520 being disposed at an upper end of said front shock absorber assembly 510;
a spring 530, a lower end of the spring 530 being assembled with the front shock absorber assembly 510 through the under spring cushion 520, the lower end of the spring 530 being lifted;
in particular, the main function of the spring system is to support the body, storing the released energy when the body jumps.
The lower part of the axial thrust bearing 540 is attached to the upper end of the spring 530, and the upper end of the spring 530 has no lift;
a dust cover 550, wherein the upper end of the dust cover 550 is clamped with the axial thrust bearing 540, and the lower side of the dust cover 550 is clamped with the front shock absorber assembly 510;
specifically, the front sliding column assembly is provided with a dust cover which is clamped up and down, the upper end of the dust cover is clamped with the axial thrust bearing, the lower side of the dust cover is clamped with the upper cover of the shock absorber assembly, the dust cover can both shield a piston rod of the shock absorber and an upper suspension when the suspension jumps up and down, the interior of the dust cover is kept clean without foreign matters, and the service life of the sliding column system is prolonged.
The axial thrust bearing 540 and the front upper suspension 560 are axially positioned through a positioning pin, the upper end of the axial thrust bearing 540 is in surface fit with the front upper suspension 560 and is in axial interference fit, and the piston rod 511 and the front upper suspension 560 are fixed through a bolt;
the buffer block 570 is in interference fit with the piston rod on the inner side and in interference fit with the upper suspension on the outer side.
Specifically, the effect of buffer block is for the vehicle buffering vehicle under receiving the heavy load impact condition, relies on self deformation limit to restrict the wheel runout volume simultaneously, avoids appearing unusual striking.
In the above embodiment, the front strut assembly 500 is integrally designed for a spring damper, and another major difference of the front strut assembly 500 of the present invention is that positioning points are set on the axial thrust bearing, the front upper suspension and the dust shield, so as to achieve the accuracy of the assembly position; this patent the traveller can provide good damping performance through above measure, has good life simultaneously, and whole car travelling comfort shows outstanding.
Optionally, the front shock absorber assembly 510 has an oil seal connected to the shock absorber outer cylinder 512 for sealing the sliding chamber; the axial thrust bearing 540 is attached to the upper end of the spring 530 to form a contact plane, and an included angle is formed between the contact plane and the front upper suspension 560, so that the spring 530 provides a certain lateral supporting force for the whole vehicle to neutralize the lateral force at the piston and the oil seal.
In the embodiment, the sliding column system adopts the axial thrust bearing which is obliquely arranged, namely, a certain included angle exists between the contact plane of the bearing and the spring and the upper suspension contact plane, and at the moment, the spring can provide a certain lateral supporting force for the whole vehicle so as to neutralize the lateral force at the piston and the oil seal of the shock absorber, so that the service life of the suspension system is prolonged.
Optionally, stabilizer bar strap connecting rod assembly 400 comprises:
the stabilizer bar assembly 410 comprises a stabilizer bar 411, two stabilizer bar bushings 412 and a stabilizer bar cover plate 413, wherein the two stabilizer bar bushings 412 are sleeved on the stabilizer bar 411 and are fixedly connected with the stabilizer bar 411, the stabilizer bar bushings 412 are pressed in the stabilizer bar cover plate 413 in an interference fit mode, and the stabilizer bar cover plate 413 is connected with the front subframe assembly 100;
specifically, two stabilizer bar bushings are arranged symmetrically in the Y direction and fixed with the stabilizer bar through bonding.
Stabilizer bar connecting rod 420, stabilizer bar connecting rod 420 is upper and lower double-bulb structure, and the upper end is provided with upside bulb 421, and the lower extreme is provided with downside bulb 422, upside bulb 421 with connecting rod support 513 is connected, and downside bulb 422 is connected with stabilizer bar assembly 410.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a compatible fuel and hybrid vehicle type's front suspension system which characterized in that includes:
the front auxiliary frame assembly (100) is provided with a reserved engine suspension mounting hole (131) and a reserved hybrid suspension mounting point (132) and is used for being compatible with fuel vehicles and hybrid vehicles;
the middle part of the front steering knuckle assembly (200) is connected with the hub unit;
the front lower control arm assembly (300), the front lower control arm assembly (300) is respectively connected with the vehicle body, the front steering knuckle assembly (200) and the front auxiliary frame assembly (100);
the stabilizer bar belt connecting rod assembly (400) is respectively connected with the front auxiliary frame assembly (100) and the front sliding column assembly (500), the stabilizer bar belt connecting rod assembly (400) comprises a fuel vehicle type stabilizer bar belt connecting rod assembly and a hybrid vehicle type stabilizer bar belt connecting rod assembly, wherein the fuel vehicle type stabilizer bar belt connecting rod assembly is used for fuel vehicle types, the hybrid vehicle type stabilizer bar belt connecting rod assembly is used for hybrid vehicle types, the fuel vehicle type stabilizer bar belt connecting rod assembly and the hybrid vehicle type stabilizer bar belt connecting rod assembly are arranged in the same direction, and the rod diameter of the fuel vehicle type stabilizer bar belt connecting rod assembly or the hybrid vehicle type stabilizer bar belt connecting rod assembly is matched with the tilting requirement of the whole vehicle;
a front strut assembly (500), the front strut assembly (500) being connected with the front knuckle assembly (200).
2. A fuel and hybrid vehicle type front suspension system as claimed in claim 1, wherein said front sub-frame assembly (100) comprises:
an impact beam (110);
a support frame (120), the impact beam (110) being connected with the support frame (120);
ingot roof beam sub vehicle frame (130), braced frame (120) with ingot roof beam sub vehicle frame (130) are connected, engine suspension mounting hole (131) and thoughtlessly move suspension mounting point (132) and set up in on the ingot roof beam sub vehicle frame 130.
3. The front suspension system of a fuel and hybrid vehicle type according to claim 1 or 2, further comprising:
the press-fitting circular suspension (140), the press-fitting circular suspension (140) is connected with the engine suspension mounting hole (131), and the press-fitting circular suspension (140) is connected with the engine through a suspension connecting rod (141);
one end of the hybrid connecting rod (150) is connected with the hybrid suspension mounting point (132), and the other end of the hybrid connecting rod (150) is connected with the gearbox;
when the press-fitting circular suspension (140) is used for a fuel vehicle type, the press-fitting circular suspension is connected with an engine through a suspension connecting rod (141); when the press-fit circular suspension (140) is used for a hybrid electric vehicle, the press-fit circular suspension (140) is connected with an engine through a suspension connecting rod (141), one end of the hybrid connecting rod (150) is connected with the hybrid suspension mounting point (132), and the other end of the hybrid connecting rod is connected with a gearbox.
4. The front suspension system of claim 2, wherein the impact beam (110) comprises a support plate (111) and two energy absorption boxes (112); the supporting frame (120) comprises a left longitudinal beam (121), a right longitudinal beam (122) and a cross beam (123); the supporting plate (111) is connected with the two energy absorption boxes (112), the two energy absorption boxes (112) are respectively connected with the left longitudinal beam (121) and the right longitudinal beam (122), two ends of the cross beam (123) are respectively connected with the left longitudinal beam (121) and the right longitudinal beam (122), and the left longitudinal beam (121) and the right longitudinal beam (122) are respectively connected with the ingot beam auxiliary frame (130).
5. The front suspension system of claim 1, wherein the wheel hub unit comprises a wheel hub bearing, the front knuckle assembly (200) is provided with a wheel hub bearing mounting hole (210) and four spherical bolt holes (220), the wheel hub bearing is arranged in the wheel hub bearing mounting hole (210) and fixed with the wheel hub bearing through the four spherical bolt holes (220), and a dust-blocking disc is sandwiched between the front knuckle assembly (200) and the wheel hub bearing; a lower cylindrical groove (230) is formed below the axis of the hub bearing mounting hole (210), the front steering knuckle assembly (200) is connected with a front lower control arm assembly (300) through the lower cylindrical groove (230), an upper cylindrical groove (240) is formed above the axis of the hub bearing mounting hole (210), and the front steering knuckle assembly (200) is connected with a front sliding column assembly (500) through the upper cylindrical groove (240).
6. A fuel and hybrid vehicle type front suspension system as claimed in claim 5, wherein said front lower control arm assembly (300) comprises:
the control arm comprises a control arm body (310), wherein the control arm body (310) is of an A-shaped structure; the control arm body (310) is provided with a first side wall (311), a second side wall (312) and a third side wall (313), the first side wall (311), the second side wall (312) and the third side wall (313) are connected in pairs, and the first side wall (311), the second side wall (312) and the third side wall (313) are thinned from thick to thin towards the inside of the control arm body (310);
a ball stud (320), wherein the ball stud (320) is arranged at the joint of the first side wall (311) and the third side wall (312), and the ball stud (320) is connected with the lower cylindrical groove (230);
a front bushing assembly (330), wherein the front bushing assembly (330) comprises a front rubber bushing (331), and the front rubber bushing (331) is pressed on the joint of the first side wall (311) and the second side wall (312);
rear bushing assembly (340), rear bushing assembly (340) includes stud (341), rear bushing (342) and rear bushing support (343), the department of meeting of second limit wall (312) and third limit wall (313) is provided with the screw hole, stud (341) one end screw thread with the screw hole spiro union, rear bushing (342) cover is established on stud (341), rear bushing (342) pass through stud (341) other end spiro union nut to be fixed on control arm body (310), rear bushing support (343) cover is established on rear bushing (342), rear bushing (342) with rear bushing support (343) assemble through interference fit, rear bushing support (343) are provided with automobile body mounting hole (3431) and sub vehicle frame mounting hole (3432), rear bushing support passes through automobile body mounting hole (3431) and is connected with the automobile body, through sub vehicle frame mounting hole (3432) with preceding sub vehicle frame assembly (100) be connected.
7. The front suspension system of claim 6, characterized in that the front suspension system of the type compatible with fuel and hybrid vehicles changes the wheel track by changing the length of the first side wall (311) so as to meet the requirement of matching different vehicle widths.
8. The front suspension system of claim 5, wherein the front strut assembly (500) comprises:
the front shock absorber assembly (510) comprises a piston rod (511), a piston, a shock absorber outer cylinder (512) and a connecting rod support (513), the piston rod (511) is connected with the piston, the shock absorber outer cylinder (513) is provided with a sliding cavity, the piston can move in the sliding cavity, the piston rod (511) can do telescopic motion at the upper end of the front shock absorber assembly (510), the connecting rod support (513) is arranged on the outer wall of the front shock absorber outer cylinder (512), and the lower end of the front shock absorber assembly (510) is in interference clamping fit with the upper cylindrical groove (240) of the front knuckle assembly (200);
a lower spring cushion (520), said lower spring cushion (520) being disposed at an upper end of said front shock absorber assembly (510);
a spring (530), a lower end of the spring (530) being assembled with the front shock absorber assembly (510) through the under-spring cushion (520), the lower end of the spring (530) having a lift;
an axial thrust bearing (540), wherein the lower part of the axial thrust bearing (540) is attached to the upper end of the spring (530), and the upper end of the spring (530) has no lift;
the upper end of the dust cover (550) is clamped with the axial thrust bearing (540), and the lower side of the dust cover (550) is clamped with the front shock absorber assembly (510);
the axial thrust bearing (540) and the front upper suspension (560) are axially positioned through a positioning pin, the upper end of the axial thrust bearing (540) is attached to the surface of the front upper suspension (560) and is in axial interference fit, and the piston rod (511) and the front upper suspension (560) are fixed through a bolt;
and the inner side of the buffer block (570) is in interference fit with the piston rod, and the outer side of the buffer block is in interference fit with the upper suspension.
9. The front suspension system of a vehicle compatible with fuel and hybrid vehicles as claimed in claim 8, wherein said front shock absorber assembly (510) has an oil seal, said oil seal is connected with said shock absorber outer tube (512) for sealing said sliding chamber; the axial thrust bearing (540) and the contact plane that the upper end laminating of spring (530) formed with suspension (560) are provided with the contained angle in the front, make spring (530) provide certain lateral support power for whole car in order to neutralize the lateral force of piston, oil blanket department.
10. A fuel and hybrid vehicle type front suspension system as claimed in claim 8, wherein the stabilizer bar-strap linkage assembly (400) comprises:
the stabilizer bar assembly (410) comprises a stabilizer bar (411), two stabilizer bar bushings (412) and a stabilizer bar cover plate (413), the two stabilizer bar bushings (412) are sleeved on the stabilizer bar (411) and fixedly connected with the stabilizer bar (411), the stabilizer bar bushings (412) are pressed in the stabilizer bar cover plate (413) in an interference fit mode, and the stabilizer bar cover plate (413) is connected with the front subframe assembly (100);
stabilizer bar connecting rod (420), stabilizer bar connecting rod (420) are upper and lower double-bulb structure, and the upper end is provided with upside bulb (421), and the lower extreme is provided with downside bulb (422), upside bulb (421) with connecting rod support (513) are connected, and downside bulb (422) are connected with stabilizer bar assembly (410).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211464994.3A CN115723849A (en) | 2022-11-22 | 2022-11-22 | Front suspension system compatible with fuel oil and hybrid vehicle type |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211464994.3A CN115723849A (en) | 2022-11-22 | 2022-11-22 | Front suspension system compatible with fuel oil and hybrid vehicle type |
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| CN115723849A true CN115723849A (en) | 2023-03-03 |
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| CN202211464994.3A Pending CN115723849A (en) | 2022-11-22 | 2022-11-22 | Front suspension system compatible with fuel oil and hybrid vehicle type |
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