WO2023039928A1 - Tricar chassis device - Google Patents

Tricar chassis device Download PDF

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Publication number
WO2023039928A1
WO2023039928A1 PCT/CN2021/120515 CN2021120515W WO2023039928A1 WO 2023039928 A1 WO2023039928 A1 WO 2023039928A1 CN 2021120515 W CN2021120515 W CN 2021120515W WO 2023039928 A1 WO2023039928 A1 WO 2023039928A1
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WO
WIPO (PCT)
Prior art keywords
assembly
frame
suspension system
shock absorber
spring
Prior art date
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PCT/CN2021/120515
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French (fr)
Chinese (zh)
Inventor
姜文娟
徐礼成
李清清
闫照东
崔震
于振江
周文明
辛本华
张守龙
司秋菊
Original Assignee
浙江飞碟汽车制造有限公司
山东五征集团有限公司
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Application filed by 浙江飞碟汽车制造有限公司, 山东五征集团有限公司 filed Critical 浙江飞碟汽车制造有限公司
Publication of WO2023039928A1 publication Critical patent/WO2023039928A1/en

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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
    • B62D21/11—Understructures, i.e. chassis frame on which a vehicle body may be mounted with resilient means for suspension, e.g. of wheels or engine; sub-frames for mounting engine or suspensions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
    • B60G11/32—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds
    • B60G11/34—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds including leaf springs
    • B60G11/36—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds including leaf springs and also helical, spiral or coil springs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G21/00—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
    • B60G21/02—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected
    • B60G21/04—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically
    • B60G21/05—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
    • B60G21/055—Stabiliser bars
    • B60G21/0551—Mounting means therefor

Definitions

  • the invention belongs to the technical field of three-wheeled automobile chassis, in particular, the invention relates to a three-wheeled automobile chassis device.
  • Both the front and rear suspensions of traditional three-wheeled vehicles use leaf spring suspensions.
  • the leaf spring suspensions are easy to manufacture, easy to maintain, and reliable in performance, but their ride comfort is poor.
  • the front suspension uses horizontal leaf springs as elastic elements, and shock absorber assemblies are installed on both sides of the left and right longitudinal beams of the frame;
  • the rear suspension uses longitudinal leaf springs as elastic elements, and the rear leaf spring suspension matches the heavy rear axle components , not only the chassis is bulky, but also takes up a lot of space.
  • the present invention provides a chassis device of a three-wheeled automobile to solve the problems in the above-mentioned background technology.
  • a chassis device for a three-wheeled vehicle comprising a front suspension system, a vehicle frame, a rear independent suspension system and a wheel hub,
  • the front end of the vehicle frame is symmetrically provided with a front bracket fixing plate, and the lower end of the front of the vehicle frame is provided with a limit beam and a front reinforcing beam, and the lower bracket of a coil spring shock absorber is welded between the limit beam and the front reinforcing beam.
  • Sub-frame mounting plates are provided on both sides of the rear of the frame, and a rear stabilizer bar beam is provided at the lower end of the rear of the frame;
  • the front suspension system is rotatably connected to the front bracket fixing plate, the rear independent suspension system is fastened to the sub-frame mounting plate, and the wheel hub is connected to the rear independent suspension system.
  • the front suspension system includes a rocker-type front suspension rod, a rotating shaft, a front suspension assembly, a front coil spring damper assembly and a front leaf spring limit block, and the middle of the rocker-type front suspension rod
  • the front end of the rocker-type front suspension rod is connected to the steering linkage system through the steering gear, and the steering linkage system is connected to the front suspension assembly.
  • the front coil spring shock absorber The upper end of the assembly is connected to the rear end of the rocker-type front suspension rod through a bolt and a flange lock nut, and the lower end of the front coil spring shock absorber assembly is connected through a bolt and a flange lock nut.
  • the tight nut is connected with the lower bracket of the coil spring shock absorber, and the front leaf spring limit block is connected with the limit beam.
  • the rear independent suspension system includes a subframe, an upper front link assembly, a steering knuckle, a lower swing arm assembly, an upper rear link assembly and a stabilizer bar hanger;
  • the subframe is connected to the subframe mounting plate;
  • the upper front link assembly has a triangular structure, and one side of the triangular structure is hinged to the upper end of the subframe, and the other side of the upper front link assembly is hinged to the steering knuckle;
  • One side of the upper and rear link assembly is hinged to the upper end of the subframe, and the other side is hinged to the steering knuckle;
  • the lower swing arm assembly is a U-fork structure, and one side of the U-fork structure is hinged to the lower end of the subframe, and the other side of the lower swing arm assembly is hinged to the steering knuckle;
  • the stabilizer bar hanger is connected with the lower swing arm assembly
  • a rear coil spring damper assembly and a secondary spring are arranged between the upper front link assembly and the upper rear link assembly, the upper end of the rear coil spring damper assembly is hinged to the upper end of the sub-frame, and the lower end It is hinged with the lower swing arm assembly; the upper end of the auxiliary spring is connected with the upper end of the auxiliary frame.
  • the stabilizer bar suspenders on both sides are connected with stabilizer bars through ball pins
  • the stabilizer bar is provided with a stabilizer bar ear bush
  • the outer side of the stabilizer bar ear bush is provided with a stabilizer bar ear
  • the stabilizer bar lug is connected to the lower end of the rear stabilizer bar crossbeam longitudinal beam.
  • the auxiliary spring includes an auxiliary spring body, an auxiliary spring metal skeleton and an auxiliary spring connecting bolt, the upper end of the auxiliary spring body is provided with a limit hole, and the auxiliary spring metal skeleton is provided with a mounting hole, and the auxiliary spring
  • the metal skeleton is vulcanized together with the auxiliary spring body, the auxiliary spring connecting bolt passes through the installation hole, and is welded together with the auxiliary spring metal skeleton, the head of the auxiliary spring connecting bolt is vulcanized with the limit hole on the upper end of the auxiliary spring body together.
  • the secondary spring metal frame is bowl-shaped, and a gap is provided between the secondary spring body and the secondary spring metal frame.
  • the surface where the upper end of the steering knuckle is in contact with the auxiliary spring is designed as a groove-shaped structure.
  • the front suspension assembly is installed on the front wheel, and the shock absorption is performed through the front suspension system, and the vibration of the front wheel is transmitted to the rocker-arm front wheel through the hinge joint with the front bracket fixing plate.
  • the rear end of the suspension rod realizes the shock absorption effect through the rear end of the rocker-type front suspension rod and the front coil spring shock absorber assembly.
  • the front coil spring shock absorber assembly is used directly below the cab to replace the traditional horizontal leaf spring and shock absorber assembly.
  • the structure is compact, the chassis mass is small, and the unsprung vibration is small, which improves the ride comfort of the driver. Compared with the leaf spring suspension, the coil spring has better impact absorption ability, less noise and better ride comfort.
  • the front coil spring shock absorber assembly is installed vertically, which has a good damping effect, and well avoids the vibration damping difference caused by the inclined installation of the shock absorber, and avoids the risk of early failure of oil leakage and fracture.
  • the rear independent suspension system with two-stage rigidity of the present invention is a connecting rod composed of the upper front connecting rod assembly, the steering knuckle, the lower swing arm assembly, the upper rear connecting rod assembly and the rear coil spring shock absorber assembly
  • the restraint of the structure on the wheel hub makes the wheel swing around the axis at a certain angle with the longitudinal axis of the car, so that the wheel can be kept within a reasonable runout range.
  • the contact point of the tire increases outward, and when the wheel falls, the contact point of the tire decreases inward, which is beneficial to the driving stability of the vehicle and reduces abnormal wear of the wheel.
  • the two-stage rigidity rear independent suspension system of the present invention realizes the two-stage rigidity of the rear independent suspension system through the combination of the auxiliary spring and the rear coil spring shock absorber assembly, so that the elastic element itself presents a certain Linear, under the conditions of no-load or full-load, the front axle load is very different, so that the ride comfort of the vehicle does not change much.
  • the problem of excessive difference in smoothness is very small.
  • the rear independent suspension system with two-stage rigidity of the present invention the parts are all integrated and installed on the sub-frame, the occupied space is smaller than that of the previous independent suspension and leaf spring suspension, and the structure is simple, economical and practical, strong and durable .
  • the rear independent suspension system with two-stage rigidity of the present invention reduces the mass of the chassis and reduces unsprung vibration, which improves the ride comfort, safety and stability of the vehicle; in addition, the independent movements of the rear wheels do not affect each other , reduce the inclination and vibration of the body, obtain good ground adhesion on uneven roads, have good ride comfort and vibration isolation performance of the cargo; moreover, when the wheels jump, the wheelbase and toe-in hardly change, regardless of the car It can turn smoothly according to the driver's operation mode in both driving and braking states.
  • Fig. 1 is the assembly drawing of three-wheeled automobile chassis device of the present invention
  • Fig. 2 is the front view when the three-wheeled automobile chassis device of the present invention is fully loaded
  • Fig. 3 is a top view of the tricycle chassis device of the present invention.
  • Fig. 4 is a schematic view of the frame structure
  • Fig. 5 is an assembly drawing of the rear independent suspension system
  • Fig. 6 is a sectional view of the secondary spring
  • Front bracket fixing plate 22. Limiting beam; 23. Lower bracket of coil spring shock absorber; 24. Front reinforcing beam; 25. Subframe mounting plate; 26. Rear stabilizer bar beam;
  • Subframe 32. Upper front link assembly; 33. Steering knuckle; 34. Lower swing arm assembly; 35. Upper rear link assembly; 36. Stabilizer bar boom; 37. Stabilizer bar; 38. Stabilizer bar lug bushing; 39. Stabilizer bar lug; 310. Rear coil spring shock absorber assembly; 311. Secondary spring;
  • auxiliary spring body 71, auxiliary spring body; 72, auxiliary spring metal skeleton; 73, auxiliary spring connecting bolts.
  • the present invention is a three-wheeled automobile chassis device, which improves the driver's riding comfort; compared with the leaf spring suspension, the coil spring has better impact absorption capacity, less noise and better ride comfort;
  • the invention solves the problem that there is a large difference in ride comfort between no-load and full-load conditions due to a single elastic element on one side of the front suspension of the existing three-wheeled vehicle.
  • a kind of three-wheel automobile chassis device comprises front suspension system 1, vehicle frame 2, rear independent suspension system 3 and wheel hub 4,
  • the front end of the vehicle frame 2 is symmetrically provided with a front bracket fixing plate 21, and the lower end of the front of the vehicle frame 2 is provided with a limit beam 22 and a front reinforcing beam 24, and the middle of the limit beam 22 and the front reinforcing beam 24 is welded with a coil spring for vibration reduction.
  • the lower bracket 23, the two sides behind the frame 2 are provided with sub-frame mounting plates 25, and the rear lower end of the frame 2 is provided with a rear stabilizer bar beam 26;
  • the front suspension system 1 is rotatably connected to the front bracket fixing plate 21
  • the rear independent suspension system 3 is firmly connected to the sub-frame mounting plate 25
  • the wheel hub 4 is connected to the rear independent suspension system 3 .
  • the front suspension system 1 includes a rocker type front suspension rod 11, a rotating shaft 12, a front suspension assembly 13, a front coil spring shock absorber assembly 14 and a front leaf spring limit block 15, and the rocker type front suspension
  • the middle of the frame rod 11 is rotationally connected with the front bracket fixing plate 21 through the rotating shaft 12, and the front end of the rocker-arm type front suspension rod 11 is connected to the steering linkage system through the steering gear, and the steering linkage system is connected to the front suspension assembly 13,
  • the upper end of the front coil spring damper assembly 14 is connected to the rear end of the rocker-type front suspension rod 11 through a bolt and a flange lock nut, and the front coil spring damper assembly 14
  • the lower end is connected with the coil spring shock absorber lower bracket 23 through a bolt and a flange surface lock nut, and the front leaf spring limit block 15 is connected with the limit beam 22 .
  • the rear independent suspension system 3 includes a subframe 31, an upper front link assembly 32, a steering knuckle 33, a lower swing arm assembly 34, an upper rear link assembly 35 and a stabilizer bar boom 36;
  • the subframe 31 is connected to the subframe mounting plate 25;
  • the upper front link assembly 32 has a triangular structure, and one side of the triangular structure is hinged to the upper end of the subframe 31, and the other side of the upper front link assembly 32 is hinged to the steering knuckle 33;
  • One side of the upper and rear link assembly 35 is hinged to the upper end of the subframe 31, and the other side is hinged to the steering knuckle 33;
  • the lower swing arm assembly 34 is a U fork structure, and one side of the U fork structure is hinged to the lower end of the subframe 31, and the other side of the lower swing arm assembly 34 is hinged to the steering knuckle 33;
  • the stabilizer bar hanger 36 is connected with the lower swing arm assembly 34;
  • a rear coil spring damper assembly 310 and a secondary spring 311 are arranged between the upper front link assembly 32 and the upper rear link assembly 35, and the upper end of the rear coil spring damper assembly 311 is connected to the auxiliary vehicle
  • the upper end of the frame 31 is hinged, and the lower end is hinged with the lower swing arm assembly 34; the upper end of the auxiliary spring 311 is connected with the upper end of the auxiliary frame 31.
  • the stabilizer bar suspenders 36 on both sides are connected with a stabilizer bar 37 through a ball pin, and the stabilizer bar 37 is provided with a stabilizer bar ear bush 38, and the outer side of the stabilizer bar ear bush 38 is provided with a stabilizer bar. Ears 39, the stabilizer bar ear 39 is connected to the lower end of the rear stabilizer bar beam 26 longitudinal beam.
  • the auxiliary spring 311 includes an auxiliary spring body 71, an auxiliary spring metal frame 72 and an auxiliary spring connecting bolt 73.
  • the upper end of the auxiliary spring body 71 is provided with a limit hole, and the auxiliary spring metal frame 72 is provided with a mounting hole.
  • the secondary spring metal frame 72 is vulcanized together with the secondary spring body 71, the secondary spring connecting bolt 73 passes through the mounting hole, and is welded together with the secondary spring metal frame 72, the head of the secondary spring connecting bolt 73 is connected to the secondary spring
  • the limiting holes at the upper end of the spring body 71 are vulcanized together.
  • the secondary spring metal frame 72 is bowl-shaped, and a gap is provided between the secondary spring body 71 and the secondary spring metal frame 72 .
  • the surface where the upper end of the steering knuckle 33 is in contact with the auxiliary spring 311 is designed as a groove-shaped structure.
  • the front suspension assembly 13 when in use, the front suspension assembly 13 is installed on the front wheel, and the shock absorption is performed through the front suspension system 1, and the vibration of the front wheel is transmitted to the rocker arm type through the hinge joint with the front bracket fixing plate 21.
  • the rear end of the front suspension rod 11 realizes the shock absorption effect through the rear end of the rocker type front suspension rod 11 and the front coil spring shock absorber assembly 14.
  • the front coil spring shock absorber assembly 14 is used to replace the traditional horizontal leaf spring and shock absorber assembly directly below the cab, which has a compact structure, a small chassis mass, and small unsprung vibration, which improves the driver's ride comfort.
  • the coil spring Compared with the leaf spring suspension, the coil spring has better impact absorption ability, less noise and better ride comfort.
  • the front coil spring shock absorber assembly 14 is vertically installed, and the vibration damping effect is good, and the vibration damping difference caused by the inclined installation of the shock absorber is well avoided, and the risk of early failure of oil leakage and fracture is avoided.
  • the rear independent suspension system 3 of the two-stage rigidity of the present invention through the upper front link assembly 32, the steering knuckle 33, the lower swing arm assembly 34, the upper rear link assembly 35 and the rear coil spring shock absorber assembly 310
  • the constraint of the formed connecting rod structure to the wheel hub 4 makes the wheel swing around the axis forming a certain angle with the longitudinal axis of the vehicle, so that the wheel remains within a reasonable range of jump.
  • the rear independent suspension system with two-stage rigidity of the present invention realizes the two-stage rigidity of the rear independent suspension system 3 through the combination of the auxiliary spring 311 and the rear coil spring shock absorber assembly 310, so that the elastic element itself presents a certain Non-linearity, under the condition of no-load or full-load, the front axle load is very different, so that the ride comfort of the vehicle does not change much.
  • the smoothness difference is too large.
  • the parts are all integrated and installed on the sub-frame 31, and the occupied space is smaller than that of the previous independent suspension and leaf spring suspension, and the structure is simple, economical, practical, strong and durable .
  • the rear independent suspension system 3 with two-stage rigidity of the present invention reduces the mass of the chassis and reduces the unsprung vibration, which improves the ride comfort, safety and stability of the vehicle; in addition, the independent movements of the rear wheels do not affect each other, Reduce the inclination and vibration of the body, obtain good ground adhesion on uneven roads, have good ride comfort and vibration isolation performance of the cargo; moreover, when the wheels jump, there is almost no change in the wheelbase and toe-in, no matter whether the car is Steering can be performed smoothly according to the driver's operation mode in both driving and braking states.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

Disclosed in the present invention is a tricar chassis device, comprising a front suspension system, a frame, a rear independent suspension system and a wheel hub, wherein front support fixing plates are symmetrically arranged at the front end of the frame; a limiting beam and a front reinforcing cross beam are provided at the lower end of the front portion of the frame; a spiral spring shock absorber lower support is welded between the limiting beam and the front reinforcing cross beam; an auxiliary frame mounting plate is provided on two sides of the rear portion of the frame; a rear stabilization bar cross beam is provided at the lower end of the rear portion of the frame; the front suspension system is rotationally connected to the front support fixing plate, the rear independent suspension system is fixedly connected to the auxiliary frame mounting plate, and the wheel hub is connected to the rear independent suspension system. The riding comfort of a driver is improved; compared with a steel plate spring suspension, a spiral spring has a good impact absorption capability, low noise, and good smoothness; and the problem whereby the difference in smoothness of a single elastic element on one side of a front suspension of an existing tricar when same has no load and a full load is too large is solved.

Description

一种三轮汽车底盘装置Chassis device for a three-wheeled vehicle 技术领域technical field
本发明属于三轮汽车底盘技术领域，具体地说，本发明涉及一种三轮汽车底盘装置。The invention belongs to the technical field of three-wheeled automobile chassis, in particular, the invention relates to a three-wheeled automobile chassis device.
背景技术Background technique
农用三轮汽车作为一个时代的产物，从农田作业到城市短途货运，农用三轮汽车有着其它车辆不可替代的作用。随着生活水平的提高，道路的改善，驾乘者对乘坐舒适性、操控稳定性和行车安全性要求越来越高。As a product of an era, agricultural tricycles play an irreplaceable role in other vehicles, from farm work to urban short-distance freight. With the improvement of living standards and the improvement of roads, drivers and passengers have higher and higher requirements for ride comfort, handling stability and driving safety.
传统的三轮汽车前悬架和后悬架均采用板簧悬架，板簧悬架制造容易、维修方便、性能可靠，但其平顺性很差。前悬架采用横置钢板弹簧作为弹性元件，车架左右纵梁两侧安装减振器总成；后悬架采用纵置钢板弹簧作为弹性元件，且后板簧悬架匹配笨重的后桥部件，不仅底盘笨重，而且占用空间大。Both the front and rear suspensions of traditional three-wheeled vehicles use leaf spring suspensions. The leaf spring suspensions are easy to manufacture, easy to maintain, and reliable in performance, but their ride comfort is poor. The front suspension uses horizontal leaf springs as elastic elements, and shock absorber assemblies are installed on both sides of the left and right longitudinal beams of the frame; the rear suspension uses longitudinal leaf springs as elastic elements, and the rear leaf spring suspension matches the heavy rear axle components , not only the chassis is bulky, but also takes up a lot of space.
现有的独立悬架机构，单侧只有一个弹性元件，弹性元件往往使用螺旋弹簧或扭杆弹簧，这些机构结构复杂、重量大、占用空间大、加工成本高、维修也比较难；同时，货车等三轮汽车空载或满载轴荷相差很大，因此，现有的独立悬架机构的承载能力和成本一直使其不能在轴荷较大的三轮汽车上使用。Existing independent suspension mechanisms have only one elastic element on one side, and the elastic elements often use coil springs or torsion bar springs. These mechanisms are complex in structure, heavy in weight, large in space, high in processing costs, and difficult to maintain; at the same time, trucks Etc. tricycle no-load or fully loaded axle load differ greatly, therefore, the carrying capacity and cost of existing independent suspension mechanism make it can not be used on the bigger tricycle of axle load always.
轴荷较大的三轮汽车，空载或满载轴荷相差很大，施加到弹性元件的作用力也很大，同时空满载轴荷相差很大，如果悬架单侧使用单一弹性元件，要满足空载时的平顺性，满载时承载能力就减弱；同样保证满载时承载能力时，空载的平顺性就较差。因此，无论现有板簧悬架和独立悬架都不能同时满足三轮汽车后悬架的承载能力和平顺性等要求。For a three-wheeled vehicle with a large axle load, there is a large difference between the no-load and full-load axle loads, and the force applied to the elastic element is also large. At the same time, the empty and full-load axle loads vary greatly. The ride comfort at no-load is weakened at full load; when the load capacity at full load is ensured, the ride comfort at no-load is poor. Therefore, no matter existing leaf spring suspension and independent suspension all can not satisfy requirements such as load-carrying capacity and ride comfort of three-wheel automobile rear suspension simultaneously.
发明内容Contents of the invention
本发明提供一种三轮汽车底盘装置，以解决上述背景技术中存在的问题。The present invention provides a chassis device of a three-wheeled automobile to solve the problems in the above-mentioned background technology.
为了实现上述目的，本发明采取的技术方案为：一种三轮汽车底盘装置，包括前悬架***、车架、后独立悬架***和轮毂，In order to achieve the above object, the technical solution adopted by the present invention is: a chassis device for a three-wheeled vehicle, comprising a front suspension system, a vehicle frame, a rear independent suspension system and a wheel hub,
所述车架前端对称设有前支架固定板，所述车架前方下端设有限位梁和前加 强横梁，所述限位梁和前加强横梁中间焊接螺旋弹簧减振器下支架，所述车架后方两侧设有副车架安装板，所述车架后方下端设有后稳定杆横梁；The front end of the vehicle frame is symmetrically provided with a front bracket fixing plate, and the lower end of the front of the vehicle frame is provided with a limit beam and a front reinforcing beam, and the lower bracket of a coil spring shock absorber is welded between the limit beam and the front reinforcing beam. Sub-frame mounting plates are provided on both sides of the rear of the frame, and a rear stabilizer bar beam is provided at the lower end of the rear of the frame;
所述前悬架***与前支架固定板转动连接，所述后独立悬架***与副车架安装板紧固连接，所述轮毂与后独立悬架***连接。The front suspension system is rotatably connected to the front bracket fixing plate, the rear independent suspension system is fastened to the sub-frame mounting plate, and the wheel hub is connected to the rear independent suspension system.
优选的，所述前悬架***包括摇臂式前悬架杆、转轴、前悬组件、前螺旋弹簧减振器总成和前板簧限位块，所述摇臂式前悬架杆中间通过转轴与前支架固定板转动连接，所述摇臂式前悬架杆的前端通过转向器连接转向连杆***，所述转向连杆***与前悬组件连接，所述前螺旋弹簧减振器总成的上端通过一根螺栓和一个法兰面锁紧螺母与摇臂式前悬架杆后端连接，所述前螺旋弹簧减振器总成的下端通过一根螺栓和一个法兰面锁紧螺母与螺旋弹簧减振器下支架连接，所述前板簧限位块与限位梁连接。Preferably, the front suspension system includes a rocker-type front suspension rod, a rotating shaft, a front suspension assembly, a front coil spring damper assembly and a front leaf spring limit block, and the middle of the rocker-type front suspension rod The front end of the rocker-type front suspension rod is connected to the steering linkage system through the steering gear, and the steering linkage system is connected to the front suspension assembly. The front coil spring shock absorber The upper end of the assembly is connected to the rear end of the rocker-type front suspension rod through a bolt and a flange lock nut, and the lower end of the front coil spring shock absorber assembly is connected through a bolt and a flange lock nut. The tight nut is connected with the lower bracket of the coil spring shock absorber, and the front leaf spring limit block is connected with the limit beam.
优选的，所述后独立悬架***包括副车架、上前连杆总成、转向节、下摆臂总成、上后连杆总成和稳定杆吊杆；Preferably, the rear independent suspension system includes a subframe, an upper front link assembly, a steering knuckle, a lower swing arm assembly, an upper rear link assembly and a stabilizer bar hanger;
所述副车架与副车架安装板连接；The subframe is connected to the subframe mounting plate;
所述上前连杆总成为三角形结构，且三角形结构的一侧与副车架上端铰接，所述上前连杆总成的另外一侧与转向节铰接；The upper front link assembly has a triangular structure, and one side of the triangular structure is hinged to the upper end of the subframe, and the other side of the upper front link assembly is hinged to the steering knuckle;
所述上后连杆总成一侧与副车架上端铰接，另外一侧与转向节铰接；One side of the upper and rear link assembly is hinged to the upper end of the subframe, and the other side is hinged to the steering knuckle;
所述下摆臂总成为U叉形结构，且U叉形结构的一侧与副车架下端铰接，所述下摆臂总成的另外一侧与转向节铰接；The lower swing arm assembly is a U-fork structure, and one side of the U-fork structure is hinged to the lower end of the subframe, and the other side of the lower swing arm assembly is hinged to the steering knuckle;
所述稳定杆吊杆与下摆臂总成连接；The stabilizer bar hanger is connected with the lower swing arm assembly;
所述上前连杆总成和上后连杆总成之间设有后螺旋弹簧减振器总成和副簧，所述后螺旋弹簧减振器总成上端与副车架上端铰接，下端与下摆臂总成铰接；所述副簧上端与副车架上端连接。A rear coil spring damper assembly and a secondary spring are arranged between the upper front link assembly and the upper rear link assembly, the upper end of the rear coil spring damper assembly is hinged to the upper end of the sub-frame, and the lower end It is hinged with the lower swing arm assembly; the upper end of the auxiliary spring is connected with the upper end of the auxiliary frame.
优选的，两侧的稳定杆吊杆上通过球销连接有稳定杆，所述稳定杆上套设有稳定杆包耳衬套，所述稳定杆包耳衬套外侧套设有稳定杆包耳，所述稳定杆包耳与后稳定杆横梁纵梁下端连接。Preferably, the stabilizer bar suspenders on both sides are connected with stabilizer bars through ball pins, the stabilizer bar is provided with a stabilizer bar ear bush, and the outer side of the stabilizer bar ear bush is provided with a stabilizer bar ear , the stabilizer bar lug is connected to the lower end of the rear stabilizer bar crossbeam longitudinal beam.
优选的，所述副簧包括副簧本体、副簧金属骨架和副簧连接螺栓，所述副簧本体的上端设有限位孔，所述副簧金属骨架上设有安装孔，所述副簧金属骨架与副簧本体硫化在一起，所述副簧连接螺栓穿过安装孔，且与副簧金属骨架焊接在 一起，所述副簧连接螺栓的头部与副簧本体上端的限位孔硫化在一起。Preferably, the auxiliary spring includes an auxiliary spring body, an auxiliary spring metal skeleton and an auxiliary spring connecting bolt, the upper end of the auxiliary spring body is provided with a limit hole, and the auxiliary spring metal skeleton is provided with a mounting hole, and the auxiliary spring The metal skeleton is vulcanized together with the auxiliary spring body, the auxiliary spring connecting bolt passes through the installation hole, and is welded together with the auxiliary spring metal skeleton, the head of the auxiliary spring connecting bolt is vulcanized with the limit hole on the upper end of the auxiliary spring body together.
优选的，所述副簧金属骨架为碗形状，所述副簧本体与副簧金属骨架之间设有间隙。Preferably, the secondary spring metal frame is bowl-shaped, and a gap is provided between the secondary spring body and the secondary spring metal frame.
优选的，所述转向节上端与副簧接触的面设计为凹槽型结构。Preferably, the surface where the upper end of the steering knuckle is in contact with the auxiliary spring is designed as a groove-shaped structure.
采用以上技术方案的有益效果是：The beneficial effect of adopting above technical scheme is:
1、本发明的三轮汽车底盘装置，使用时,前悬组件安装在前轮,通过前悬架***进行减震,并将前轮震动通过与前支架固定板铰接处传递到摇臂式前悬架杆后端,通过摇臂式前悬架杆后端和前螺旋弹簧减振器总成来实现减震效果。将驾驶室正下方用前螺旋弹簧减振器总成替代传统的横置钢板弹簧和减振器总成，结构紧凑，底盘质量小，簧下振动小，提高了驾驶员的乘坐舒适性。螺旋弹簧相比于钢板弹簧悬架吸收冲击能力好、噪音小、平顺性好。前螺旋弹簧减振器总成垂直安装，减振效果好，很好的避免了减振器倾斜安装产生的减振差，避免发生漏油和断裂的早期失效风险。1. When the three-wheeled automobile chassis device of the present invention is in use, the front suspension assembly is installed on the front wheel, and the shock absorption is performed through the front suspension system, and the vibration of the front wheel is transmitted to the rocker-arm front wheel through the hinge joint with the front bracket fixing plate. The rear end of the suspension rod realizes the shock absorption effect through the rear end of the rocker-type front suspension rod and the front coil spring shock absorber assembly. The front coil spring shock absorber assembly is used directly below the cab to replace the traditional horizontal leaf spring and shock absorber assembly. The structure is compact, the chassis mass is small, and the unsprung vibration is small, which improves the ride comfort of the driver. Compared with the leaf spring suspension, the coil spring has better impact absorption ability, less noise and better ride comfort. The front coil spring shock absorber assembly is installed vertically, which has a good damping effect, and well avoids the vibration damping difference caused by the inclined installation of the shock absorber, and avoids the risk of early failure of oil leakage and fracture.
2、本发明的两级刚度的后独立悬架***，通过上前连杆总成、转向节、下摆臂总成、上后连杆总成和后螺旋弹簧减振器总成构成的连杆结构对轮毂的约束，使车轮绕着与汽车纵轴线成一定角度的轴线内摆动，使车轮保持在一个合理的跳动范围内。车轮上跳时，轮胎接地点向外增大，车轮下落时，轮胎接地点向内减小，有利于车辆行驶稳定性，并减小车轮异常磨损。2. The rear independent suspension system with two-stage rigidity of the present invention is a connecting rod composed of the upper front connecting rod assembly, the steering knuckle, the lower swing arm assembly, the upper rear connecting rod assembly and the rear coil spring shock absorber assembly The restraint of the structure on the wheel hub makes the wheel swing around the axis at a certain angle with the longitudinal axis of the car, so that the wheel can be kept within a reasonable runout range. When the wheel jumps up, the contact point of the tire increases outward, and when the wheel falls, the contact point of the tire decreases inward, which is beneficial to the driving stability of the vehicle and reduces abnormal wear of the wheel.
3、本发明的两级刚度的后独立悬架***，通过副簧与后螺旋弹簧减振器总成的组合，实现了后独立悬架***的两级刚度，使弹性元件本身呈现一定的非线性，在空载或满载，前轴荷相差很大的二种状态下，使车辆平顺性变化不大，解决了现有三轮汽车前悬架一侧单一弹性元件，空载和满载时的平顺性相差过大的问题。3. The two-stage rigidity rear independent suspension system of the present invention realizes the two-stage rigidity of the rear independent suspension system through the combination of the auxiliary spring and the rear coil spring shock absorber assembly, so that the elastic element itself presents a certain Linear, under the conditions of no-load or full-load, the front axle load is very different, so that the ride comfort of the vehicle does not change much. The problem of excessive difference in smoothness.
4、本发明的两级刚度的后独立悬架***，零部件都集成安装在副车架上，占用空间相对以往的独立悬架和板簧悬架都小，结构简单、经济实用、结实耐久。4. The rear independent suspension system with two-stage rigidity of the present invention, the parts are all integrated and installed on the sub-frame, the occupied space is smaller than that of the previous independent suspension and leaf spring suspension, and the structure is simple, economical and practical, strong and durable .
5、本发明的两级刚度的后独立悬架***，底盘质量减小，簧下振动小，提高了整车的乘坐舒适性、安全性和稳定性；另外，后轮各自独立运动互不影响，减少车身的倾斜和振动，在不平的路面上获得很好的地面附着力，具有良好乘坐舒适性及货物的隔振性能；而且，车轮跳动时，轮距和前束几乎没有变化，不管 汽车是在驱动、制动状态都可以依照司机的操作方式进行平稳的转向。5. The rear independent suspension system with two-stage rigidity of the present invention reduces the mass of the chassis and reduces unsprung vibration, which improves the ride comfort, safety and stability of the vehicle; in addition, the independent movements of the rear wheels do not affect each other , reduce the inclination and vibration of the body, obtain good ground adhesion on uneven roads, have good ride comfort and vibration isolation performance of the cargo; moreover, when the wheels jump, the wheelbase and toe-in hardly change, regardless of the car It can turn smoothly according to the driver's operation mode in both driving and braking states.
附图说明Description of drawings
图1是本发明的三轮汽车底盘装置装配图；Fig. 1 is the assembly drawing of three-wheeled automobile chassis device of the present invention;
图2是本发明的三轮汽车底盘装置满载时主视图；Fig. 2 is the front view when the three-wheeled automobile chassis device of the present invention is fully loaded;
图3是本发明的三轮汽车底盘装置俯视图；Fig. 3 is a top view of the tricycle chassis device of the present invention;
图4是车架结构示意图；Fig. 4 is a schematic view of the frame structure;
图5是后独立悬架***装配图；Fig. 5 is an assembly drawing of the rear independent suspension system;
图6是副簧剖视图；Fig. 6 is a sectional view of the secondary spring;
其中：in:
1、前悬架***；2、车架；3、后独立悬架***；4、轮毂；1. Front suspension system; 2. Frame; 3. Rear independent suspension system; 4. Wheel hub;
11、摇臂式前悬架杆；12、转轴；13、前悬组件；14、前螺旋弹簧减振器总成；15、前板簧限位块；11. Rocker arm type front suspension rod; 12. Rotating shaft; 13. Front suspension assembly; 14. Front coil spring shock absorber assembly; 15. Front leaf spring limit block;
21、前支架固定板；22、限位梁；23、螺旋弹簧减振器下支架；24、前加强横梁；25、副车架安装板；26、后稳定杆横梁；21. Front bracket fixing plate; 22. Limiting beam; 23. Lower bracket of coil spring shock absorber; 24. Front reinforcing beam; 25. Subframe mounting plate; 26. Rear stabilizer bar beam;
31、副车架；32、上前连杆总成；33、转向节；34、下摆臂总成；35、上后连杆总成；36、稳定杆吊杆；37、稳定杆；38、稳定杆包耳衬套；39、稳定杆包耳；310、后螺旋弹簧减振器总成；311、副簧；31. Subframe; 32. Upper front link assembly; 33. Steering knuckle; 34. Lower swing arm assembly; 35. Upper rear link assembly; 36. Stabilizer bar boom; 37. Stabilizer bar; 38. Stabilizer bar lug bushing; 39. Stabilizer bar lug; 310. Rear coil spring shock absorber assembly; 311. Secondary spring;
71、副簧本体；72、副簧金属骨架；73、副簧连接螺栓。71, auxiliary spring body; 72, auxiliary spring metal skeleton; 73, auxiliary spring connecting bolts.
具体实施方式Detailed ways
下面对照附图，通过对实施例的描述，对本发明的具体实施方式作进一步详细的说明，目的是帮助本领域的技术人员对本发明的构思、技术方案有更完整、准确和深入的理解，并有助于其实施。The specific embodiment of the present invention will be described in further detail by describing the embodiments below with reference to the accompanying drawings, the purpose is to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solutions of the present invention, and contribute to its implementation.
如图1至图6所示，本发明是一种三轮汽车底盘装置，提高了驾驶员的乘坐舒适性；螺旋弹簧相比于钢板弹簧悬架吸收冲击能力好、噪音小、平顺性好；解决了现有三轮汽车前悬架一侧单一弹性元件，空载和满载时的平顺性相差过大的问题。As shown in Figures 1 to 6, the present invention is a three-wheeled automobile chassis device, which improves the driver's riding comfort; compared with the leaf spring suspension, the coil spring has better impact absorption capacity, less noise and better ride comfort; The invention solves the problem that there is a large difference in ride comfort between no-load and full-load conditions due to a single elastic element on one side of the front suspension of the existing three-wheeled vehicle.
具体的说，如图1至图6所示，一种三轮汽车底盘装置，包括前悬架***1、车架2、后独立悬架***3和轮毂4，Specifically, as shown in Fig. 1 to Fig. 6, a kind of three-wheel automobile chassis device comprises front suspension system 1, vehicle frame 2, rear independent suspension system 3 and wheel hub 4,
所述车架2前端对称设有前支架固定板21，所述车架2前方下端设有限位梁22和前加强横梁24，所述限位梁22和前加强横梁24中间焊接螺旋弹簧减振器下支架23，所述车架2后方两侧设有副车架安装板25，所述车架2后方下端设有后稳定杆横梁26；The front end of the vehicle frame 2 is symmetrically provided with a front bracket fixing plate 21, and the lower end of the front of the vehicle frame 2 is provided with a limit beam 22 and a front reinforcing beam 24, and the middle of the limit beam 22 and the front reinforcing beam 24 is welded with a coil spring for vibration reduction. The lower bracket 23, the two sides behind the frame 2 are provided with sub-frame mounting plates 25, and the rear lower end of the frame 2 is provided with a rear stabilizer bar beam 26;
所述前悬架***1与前支架固定板21转动连接，所述后独立悬架***3与副车架安装板25紧固连接，所述轮毂4与后独立悬架***3连接。The front suspension system 1 is rotatably connected to the front bracket fixing plate 21 , the rear independent suspension system 3 is firmly connected to the sub-frame mounting plate 25 , and the wheel hub 4 is connected to the rear independent suspension system 3 .
所述前悬架***1包括摇臂式前悬架杆11、转轴12、前悬组件13、前螺旋弹簧减振器总成14和前板簧限位块15，所述摇臂式前悬架杆11中间通过转轴12与前支架固定板21转动连接，所述摇臂式前悬架杆11的前端通过转向器连接转向连杆***，所述转向连杆***与前悬组件13连接，所述前螺旋弹簧减振器总成14的上端通过一根螺栓和一个法兰面锁紧螺母与摇臂式前悬架杆11后端连接，所述前螺旋弹簧减振器总成14的下端通过一根螺栓和一个法兰面锁紧螺母与螺旋弹簧减振器下支架23连接，所述前板簧限位块15与限位梁22连接。The front suspension system 1 includes a rocker type front suspension rod 11, a rotating shaft 12, a front suspension assembly 13, a front coil spring shock absorber assembly 14 and a front leaf spring limit block 15, and the rocker type front suspension The middle of the frame rod 11 is rotationally connected with the front bracket fixing plate 21 through the rotating shaft 12, and the front end of the rocker-arm type front suspension rod 11 is connected to the steering linkage system through the steering gear, and the steering linkage system is connected to the front suspension assembly 13, The upper end of the front coil spring damper assembly 14 is connected to the rear end of the rocker-type front suspension rod 11 through a bolt and a flange lock nut, and the front coil spring damper assembly 14 The lower end is connected with the coil spring shock absorber lower bracket 23 through a bolt and a flange surface lock nut, and the front leaf spring limit block 15 is connected with the limit beam 22 .
所述后独立悬架***3包括副车架31、上前连杆总成32、转向节33、下摆臂总成34、上后连杆总成35和稳定杆吊杆36；The rear independent suspension system 3 includes a subframe 31, an upper front link assembly 32, a steering knuckle 33, a lower swing arm assembly 34, an upper rear link assembly 35 and a stabilizer bar boom 36;
所述副车架31与副车架安装板25连接；The subframe 31 is connected to the subframe mounting plate 25;
所述上前连杆总成32为三角形结构，且三角形结构的一侧与副车架31上端铰接，所述上前连杆总成32的另外一侧与转向节33铰接；The upper front link assembly 32 has a triangular structure, and one side of the triangular structure is hinged to the upper end of the subframe 31, and the other side of the upper front link assembly 32 is hinged to the steering knuckle 33;
所述上后连杆总成35一侧与副车架31上端铰接，另外一侧与转向节33铰接；One side of the upper and rear link assembly 35 is hinged to the upper end of the subframe 31, and the other side is hinged to the steering knuckle 33;
所述下摆臂总成34为U叉形结构，且U叉形结构的一侧与副车架31下端铰接，所述下摆臂总成34的另外一侧与转向节33铰接；The lower swing arm assembly 34 is a U fork structure, and one side of the U fork structure is hinged to the lower end of the subframe 31, and the other side of the lower swing arm assembly 34 is hinged to the steering knuckle 33;
所述稳定杆吊杆36与下摆臂总成34连接；The stabilizer bar hanger 36 is connected with the lower swing arm assembly 34;
所述上前连杆总成32和上后连杆总成35之间设有后螺旋弹簧减振器总成310和副簧311，所述后螺旋弹簧减振器总成311上端与副车架31上端铰接，下端与下摆臂总成34铰接；所述副簧311上端与副车架31上端连接。A rear coil spring damper assembly 310 and a secondary spring 311 are arranged between the upper front link assembly 32 and the upper rear link assembly 35, and the upper end of the rear coil spring damper assembly 311 is connected to the auxiliary vehicle The upper end of the frame 31 is hinged, and the lower end is hinged with the lower swing arm assembly 34; the upper end of the auxiliary spring 311 is connected with the upper end of the auxiliary frame 31.
两侧的稳定杆吊杆36上通过球销连接有稳定杆37，所述稳定杆37上套设有稳定杆包耳衬套38，所述稳定杆包耳衬套38外侧套设有稳定杆包耳39，所述稳定杆包耳39与后稳定杆横梁26纵梁下端连接。The stabilizer bar suspenders 36 on both sides are connected with a stabilizer bar 37 through a ball pin, and the stabilizer bar 37 is provided with a stabilizer bar ear bush 38, and the outer side of the stabilizer bar ear bush 38 is provided with a stabilizer bar. Ears 39, the stabilizer bar ear 39 is connected to the lower end of the rear stabilizer bar beam 26 longitudinal beam.
所述副簧311包括副簧本体71、副簧金属骨架72和副簧连接螺栓73，所述副簧本体71的上端设有限位孔，所述副簧金属骨架72上设有安装孔，所述副簧金属骨架72与副簧本体71硫化在一起，所述副簧连接螺栓73穿过安装孔，且与副簧金属骨架72焊接在一起，所述副簧连接螺栓73的头部与副簧本体71上端的限位孔硫化在一起。The auxiliary spring 311 includes an auxiliary spring body 71, an auxiliary spring metal frame 72 and an auxiliary spring connecting bolt 73. The upper end of the auxiliary spring body 71 is provided with a limit hole, and the auxiliary spring metal frame 72 is provided with a mounting hole. The secondary spring metal frame 72 is vulcanized together with the secondary spring body 71, the secondary spring connecting bolt 73 passes through the mounting hole, and is welded together with the secondary spring metal frame 72, the head of the secondary spring connecting bolt 73 is connected to the secondary spring The limiting holes at the upper end of the spring body 71 are vulcanized together.
所述副簧金属骨架72为碗形状，所述副簧本体71与副簧金属骨架72之间设有间隙。The secondary spring metal frame 72 is bowl-shaped, and a gap is provided between the secondary spring body 71 and the secondary spring metal frame 72 .
所述转向节33上端与副簧311接触的面设计为凹槽型结构。The surface where the upper end of the steering knuckle 33 is in contact with the auxiliary spring 311 is designed as a groove-shaped structure.
以下用具体实施例对具体工作方式进行阐述：The specific working method is set forth below with specific embodiments:
实施例1：Example 1:
本发明的三轮汽车底盘装置，使用时,前悬组件13安装在前轮,通过前悬架***1进行减震,并将前轮震动通过与前支架固定板21铰接处传递到摇臂式前悬架杆11后端,通过摇臂式前悬架杆11后端和前螺旋弹簧减振器总成14来实现减震效果。将驾驶室正下方用前螺旋弹簧减振器总成14替代传统的横置钢板弹簧和减振器总成，结构紧凑，底盘质量小，簧下振动小，提高了驾驶员的乘坐舒适性。螺旋弹簧相比于钢板弹簧悬架吸收冲击能力好、噪音小、平顺性好。前螺旋弹簧减振器总成14垂直安装，减振效果好，很好的避免了减振器倾斜安装产生的减振差，避免发生漏油和断裂的早期失效风险。In the three-wheeled automobile chassis device of the present invention, when in use, the front suspension assembly 13 is installed on the front wheel, and the shock absorption is performed through the front suspension system 1, and the vibration of the front wheel is transmitted to the rocker arm type through the hinge joint with the front bracket fixing plate 21. The rear end of the front suspension rod 11 realizes the shock absorption effect through the rear end of the rocker type front suspension rod 11 and the front coil spring shock absorber assembly 14. The front coil spring shock absorber assembly 14 is used to replace the traditional horizontal leaf spring and shock absorber assembly directly below the cab, which has a compact structure, a small chassis mass, and small unsprung vibration, which improves the driver's ride comfort. Compared with the leaf spring suspension, the coil spring has better impact absorption ability, less noise and better ride comfort. The front coil spring shock absorber assembly 14 is vertically installed, and the vibration damping effect is good, and the vibration damping difference caused by the inclined installation of the shock absorber is well avoided, and the risk of early failure of oil leakage and fracture is avoided.
实施例2：Example 2:
本发明的两级刚度的后独立悬架***3，通过上前连杆总成32、转向节33、下摆臂总成34、上后连杆总成35和后螺旋弹簧减振器总成310构成的连杆结构对轮毂4的约束，使车轮绕着与汽车纵轴线成一定角度的轴线内摆动，使车轮保持在一个合理的跳动范围内。车轮上跳时，轮胎接地点向外增大，车轮下落时，轮胎接地点向内减小，有利于车辆行驶稳定性，并减小车轮异常磨损。The rear independent suspension system 3 of the two-stage rigidity of the present invention, through the upper front link assembly 32, the steering knuckle 33, the lower swing arm assembly 34, the upper rear link assembly 35 and the rear coil spring shock absorber assembly 310 The constraint of the formed connecting rod structure to the wheel hub 4 makes the wheel swing around the axis forming a certain angle with the longitudinal axis of the vehicle, so that the wheel remains within a reasonable range of jump. When the wheel jumps up, the contact point of the tire increases outward, and when the wheel falls, the contact point of the tire decreases inward, which is beneficial to the driving stability of the vehicle and reduces abnormal wear of the wheel.
本发明的两级刚度的后独立悬架***，通过副簧311与后螺旋弹簧减振器总成310的组合，实现了后独立悬架***3的两级刚度，使弹性元件本身呈现一定的非线性，在空载或满载，前轴荷相差很大的二种状态下，使车辆平顺性变化不大，解决了现有三轮汽车前悬架一侧单一弹性元件，空载和满载时的平顺性相差 过大的问题。The rear independent suspension system with two-stage rigidity of the present invention realizes the two-stage rigidity of the rear independent suspension system 3 through the combination of the auxiliary spring 311 and the rear coil spring shock absorber assembly 310, so that the elastic element itself presents a certain Non-linearity, under the condition of no-load or full-load, the front axle load is very different, so that the ride comfort of the vehicle does not change much. The smoothness difference is too large.
本发明的两级刚度的后独立悬架***3，零部件都集成安装在副车架31上，占用空间相对以往的独立悬架和板簧悬架都小，结构简单、经济实用、结实耐久。In the rear independent suspension system 3 with two-stage rigidity of the present invention, the parts are all integrated and installed on the sub-frame 31, and the occupied space is smaller than that of the previous independent suspension and leaf spring suspension, and the structure is simple, economical, practical, strong and durable .
本发明的两级刚度的后独立悬架***3，底盘质量减小，簧下振动小，提高了整车的乘坐舒适性、安全性和稳定性；另外，后轮各自独立运动互不影响，减少车身的倾斜和振动，在不平的路面上获得很好的地面附着力，具有良好乘坐舒适性及货物的隔振性能；而且，车轮跳动时，轮距和前束几乎没有变化，不管汽车是在驱动、制动状态都可以依照司机的操作方式进行平稳的转向。The rear independent suspension system 3 with two-stage rigidity of the present invention reduces the mass of the chassis and reduces the unsprung vibration, which improves the ride comfort, safety and stability of the vehicle; in addition, the independent movements of the rear wheels do not affect each other, Reduce the inclination and vibration of the body, obtain good ground adhesion on uneven roads, have good ride comfort and vibration isolation performance of the cargo; moreover, when the wheels jump, there is almost no change in the wheelbase and toe-in, no matter whether the car is Steering can be performed smoothly according to the driver's operation mode in both driving and braking states.
以上结合附图对本发明进行了示例性描述，显然，本发明具体实现并不受上述方式的限制，只要是采用了本发明的方法构思和技术方案进行的各种非实质性的改进；或未经改进，将本发明的上述构思和技术方案直接应用于其它场合的，均在本发明的保护范围之内。The present invention has been exemplarily described above in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above methods, as long as various insubstantial improvements are made by adopting the method concept and technical solutions of the present invention; or not After improvement, the above-mentioned ideas and technical solutions of the present invention are directly applied to other occasions, all within the protection scope of the present invention.

Claims (7)

  1. 一种三轮汽车底盘装置，其特征在于：包括前悬架***(1)、车架(2)、后独立悬架***(3)和轮毂(4)，A kind of three-wheel automobile chassis device, it is characterized in that: comprise front suspension system (1), vehicle frame (2), rear independent suspension system (3) and wheel hub (4),
    所述车架(2)前端对称设有前支架固定板(21)，所述车架(2)前方下端设有限位梁(22)和前加强横梁(24)，所述限位梁(22)和前加强横梁(24)中间焊接螺旋弹簧减振器下支架(23)，所述车架(2)后方两侧设有副车架安装板(25)，所述车架(2)后方下端设有后稳定杆横梁(26)；The front end of the vehicle frame (2) is symmetrically provided with a front bracket fixing plate (21), the front lower end of the vehicle frame (2) is provided with a limit beam (22) and a front reinforcing crossbeam (24), and the limit beam (22 ) and the middle of the front reinforcement beam (24) are welded with the lower support (23) of the coil spring shock absorber, and the two sides behind the frame (2) are provided with sub-frame mounting plates (25), The lower end is provided with a rear stabilizer beam (26);
    所述前悬架***(1)与前支架固定板(21)转动连接，所述后独立悬架***(3)与副车架安装板(25)紧固连接，所述轮毂(4)与后独立悬架***(3)连接。The front suspension system (1) is rotatably connected to the front bracket fixing plate (21), the rear independent suspension system (3) is firmly connected to the sub-frame mounting plate (25), and the wheel hub (4) is connected to the The rear independent suspension system (3) is connected.
  2. 根据权利要求1所述的一种三轮汽车底盘装置，其特征在于：所述前悬架***(1)包括摇臂式前悬架杆(11)、转轴(12)、前悬组件(13)、前螺旋弹簧减振器总成(14)和前板簧限位块(15)，所述摇臂式前悬架杆(11)中间通过转轴(12)与前支架固定板(21)转动连接，所述摇臂式前悬架杆(11)的前端通过转向器连接转向连杆***，所述转向连杆***与前悬组件(13)连接，所述前螺旋弹簧减振器总成(14)的上端通过一根螺栓和一个法兰面锁紧螺母与摇臂式前悬架杆(11)后端连接，所述前螺旋弹簧减振器总成(14)的下端通过一根螺栓和一个法兰面锁紧螺母与螺旋弹簧减振器下支架(23)连接，所述前板簧限位块(15)与限位梁(22)连接。A kind of three-wheel automobile chassis device according to claim 1, it is characterized in that: described front suspension system (1) comprises rocker type front suspension rod (11), rotating shaft (12), front suspension assembly (13 ), the front coil spring shock absorber assembly (14) and the front leaf spring limit block (15), the middle of the rocker type front suspension rod (11) passes through the rotating shaft (12) and the front bracket fixing plate (21) The front end of the rocker-arm type front suspension rod (11) is connected to the steering linkage system through the steering gear, and the steering linkage system is connected to the front suspension assembly (13). The front coil spring shock absorber is generally The upper end of the assembly (14) is connected to the rear end of the rocker type front suspension rod (11) through a bolt and a flange lock nut, and the lower end of the front coil spring shock absorber assembly (14) is connected through a A root bolt and a flange lock nut are connected with the coil spring shock absorber lower bracket (23), and the front leaf spring limit block (15) is connected with the limit beam (22).
  3. 根据权利要求1所述的一种三轮汽车底盘装置，其特征在于：所述后独立悬架***(3)包括副车架(31)、上前连杆总成(32)、转向节(33)、下摆臂总成(34)、上后连杆总成(35)和稳定杆吊杆(36)；A kind of three-wheel automobile chassis device according to claim 1, it is characterized in that: described rear independent suspension system (3) comprises subframe (31), upper front link assembly (32), steering knuckle ( 33), lower swing arm assembly (34), upper rear link assembly (35) and stabilizer bar suspension rod (36);
    所述副车架(31)与副车架安装板(25)连接；The subframe (31) is connected with the subframe mounting plate (25);
    所述上前连杆总成(32)为三角形结构，且三角形结构的一侧与副车架(31)上端铰接，所述上前连杆总成(32)的另外一侧与转向节(33)铰接；The upper front link assembly (32) is a triangular structure, and one side of the triangular structure is hinged to the upper end of the subframe (31), and the other side of the upper front link assembly (32) is connected to the steering knuckle ( 33) Articulation;
    所述上后连杆总成(35)一侧与副车架(31)上端铰接，另外一侧与转向节(33)铰接；One side of the upper rear link assembly (35) is hinged with the upper end of the sub-frame (31), and the other side is hinged with the steering knuckle (33);
    所述下摆臂总成(34)为U叉形结构，且U叉形结构的一侧与副车架(31)下端铰接，所述下摆臂总成(34)的另外一侧与转向节(33)铰接；The lower swing arm assembly (34) is a U fork structure, and one side of the U fork structure is hinged to the lower end of the subframe (31), and the other side of the lower swing arm assembly (34) is connected to the steering knuckle ( 33) Articulation;
    所述稳定杆吊杆(36)与下摆臂总成(34)连接；The stabilizer bar suspension rod (36) is connected with the lower swing arm assembly (34);
    所述上前连杆总成(32)和上后连杆总成(35)之间设有后螺旋弹簧减振器总成(310)和副簧(311)，所述后螺旋弹簧减振器总成(311)上端与副车架(31)上端铰接，下端与下摆臂总成(34)铰接；所述副簧(311)上端与副车架(31)上端连接。A rear coil spring shock absorber assembly (310) and an auxiliary spring (311) are arranged between the upper front link assembly (32) and the upper rear link assembly (35). The upper end of the device assembly (311) is hinged with the upper end of the subframe (31), and the lower end is hinged with the lower swing arm assembly (34); the upper end of the auxiliary spring (311) is connected with the upper end of the subframe (31).
  4. 根据权利要求3所述的一种三轮汽车底盘装置，其特征在于：两侧的稳定杆吊杆(36)上通过球销连接有稳定杆(37)，所述稳定杆(37)上套设有稳定杆包耳衬套(38)，所述稳定杆包耳衬套(38)外侧套设有稳定杆包耳(39)，所述稳定杆包耳(39)与后稳定杆横梁(26)下端连接。The chassis device of a three-wheeled automobile according to claim 3, characterized in that: the stabilizer rods (36) on both sides are connected with stabilizer rods (37) through ball pins, and the stabilizer rods (37) are covered with A stabilizer bar ear bushing (38) is provided, and the outer side of the stabilizer bar ear bushing (38) is provided with a stabilizer bar ear (39), and the stabilizer bar ear (39) is connected with the rear stabilizer bar beam ( 26) The lower end is connected.
  5. 根据权利要求3所述的一种三轮汽车底盘装置，其特征在于：所述副簧(311)包括副簧本体(71)、副簧金属骨架(72)和副簧连接螺栓(73)，所述副簧本体(71)的上端设有限位孔，所述副簧金属骨架(72)上设有安装孔，所述副簧金属骨架(72)与副簧本体(71)硫化在一起，所述副簧连接螺栓(73)穿过安装孔，且与副簧金属骨架(72)焊接在一起，所述副簧连接螺栓(73)的头部与副簧本体(71)上端的限位孔硫化在一起。A kind of three-wheel automobile chassis device according to claim 3, it is characterized in that: described auxiliary spring (311) comprises auxiliary spring body (71), auxiliary spring metal frame (72) and auxiliary spring connecting bolt (73), The upper end of the secondary spring body (71) is provided with a limit hole, and the secondary spring metal frame (72) is provided with a mounting hole, and the secondary spring metal frame (72) is vulcanized together with the secondary spring body (71). The secondary spring connecting bolt (73) passes through the installation hole and is welded together with the secondary spring metal skeleton (72). The limit position between the head of the secondary spring connecting bolt (73) and the upper end of the secondary spring body (71) The pores are vulcanized together.
  6. 根据权利要求5所述的一种三轮汽车底盘装置，其特征在于：所述副簧金属骨架(72)为碗形状，所述副簧本体(71)与副簧金属骨架(72)之间设有间隙。The chassis device of a three-wheeled automobile according to claim 5, characterized in that: the secondary spring metal frame (72) is bowl-shaped, and the secondary spring body (71) and the secondary spring metal frame (72) are There is a gap.
  7. 根据权利要求3所述的一种三轮汽车底盘装置，其特征在于：所述转向节(33)上端与副簧(311)接触的面设计为凹槽型结构。The chassis device of a three-wheeled vehicle according to claim 3, characterized in that: the surface where the upper end of the steering knuckle (33) contacts with the secondary spring (311) is designed as a groove-shaped structure.
PCT/CN2021/120515 2021-09-16 2021-09-26 Tricar chassis device WO2023039928A1 (en)

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