CN206406711U - A kind of independent rear suspension with transmission agency - Google Patents

Abstract

The utility model discloses an independent rear suspension with transmission function. The rear suspension mainly includes three parts: a shock absorber, a coil spring, and a swing arm, wherein the swing arm includes a transmission shaft sleeve connected to a gearbox, a connecting Driveshaft bushing for the wheel, inner sprocket chain drive and outer cover shell. One end of the shock absorber is connected to the fixed connection seat on the swing arm, and the other end is connected to the fixed connection seat on the frame to achieve shock absorption; the coil spring is sleeved outside the shock absorber to achieve load-bearing and buffering functions; the big end of the swing arm The side is connected to the wheel, the small head is connected to the gearbox, and the rear wheel is driven by the sprocket chain transmission mechanism inside. A set of this device is respectively connected to the left and right sides of the rear vehicle frame of the vehicle to form a complete independent rear suspension system. The device has simple and reliable structure, excellent shock absorption performance, excellent stability and driving comfort, and is more suitable for vehicles emphasizing off-road performance.

Description

An independent rear suspension with transmission function

technical field

The utility model relates to a vehicle rear suspension device, in particular to an independent rear suspension device with transmission function.

Background technique

At present, the rear suspension of motor vehicles on the market is either a non-independent suspension structure in the form of a single trailing arm, or an independent suspension structure, and the most used are double A-arm and multi-link independent suspensions. It is mainly carried and buffered by coil springs, the damping effect is realized by damping shock absorbers, and the force transmission, support and guiding functions of the suspension are realized by double A arms or various connecting rods. The effect is good, but the disadvantage is that the structure is complex and occupies The space is large, the cost is high, the positioning is difficult, and the inclination angle of the rear wheel changes at any time, which affects the life of the tire.

In addition, for vehicles requiring excellent off-road performance such as four-wheeled motorcycles, go-karts, farm vehicles, ATVs, and golf carts, many previous rear suspensions cannot be adjusted according to the road conditions when the heights of the two rear wheels are inconsistent. With proper adjustment, the vehicle body will tilt severely, making the comfort and safety of the vehicle unsatisfactory. At the same time, although some independent suspension structures have effectively improved the comfort of the vehicle, the transmission system is complicated and increases the cost.

Contents of the invention

In order to solve the shortcomings in the above-mentioned background technology, the utility model provides an independent rear suspension with simple and reliable structure, excellent shock absorption performance and transmission function.

The utility model is realized through the following technical solutions: the rear suspension of the vehicle mainly includes three parts: a shock absorber, a coil spring, and a swing arm, wherein the swing arm includes a transmission shaft sleeve connected to the gearbox, and a transmission shaft connected to the wheel. Shaft sleeve, internal sprocket chain transmission mechanism and outer cover shell. At the same time, the upper side of the swing arm is provided with the connection seat of the shock absorber, and the drive shaft sleeve of the gearbox and the drive shaft sleeve connected to the wheel are provided with ribs plate to strengthen the stability of the drive shaft. One end of the shock absorber is connected to the fixed connection seat on the swing arm, and the other end is connected to the fixed connection seat on the frame. When the rear wheel is impacted, the entire swing arm will rotate around the center line of the transmission shaft sleeve connected to the gearbox. , and then transmitted to the shock absorber to achieve the purpose of shock absorption; the coil spring is sleeved outside the shock absorber to achieve load-bearing and buffering functions; the large end of the swing arm is connected to the wheel, and the small end is connected to the gearbox, and there is a chain inside The wheel and chain transmission mechanism transmits the power transmitted by the gearbox to the rear wheels through the sprocket and chain transmission mechanism, so as to realize the driving of the rear wheels. The left and right sides of the rear frame of the vehicle are respectively connected with one set of this device to form a complete independent rear suspension system.

Compared with the prior art, the utility model has the following beneficial effects: the independent rear suspension of the vehicle is connected to the fixed connection seat on the swing arm through the shock absorber at one end, and the other end is connected to the structure of the fixed connection seat on the vehicle frame, so that when the rear When the wheel is impacted, the entire swing arm will rotate with the centerline of the transmission shaft sleeve connected to the gearbox as the central axis, and then transmit it to the shock absorber to achieve the purpose of shock absorption; in addition, this device drives the rear wheel through the The device is built into the swing arm, which simplifies the entire suspension structure, and the connection is simpler and more reliable, and the positioning is more accurate; at the same time, when the heights of the two rear wheels are inconsistent, it can reduce the tilt of the body and keep the body stable, thereby improving the stability of the vehicle. comfort and safety; compared with the general independent suspension structure, the vehicle rear suspension structure of the utility model has simple structure, convenient manufacture and low cost. The vehicle rear suspension structure is particularly suitable for use on vehicles such as four-wheeled motorcycles, go-karts, farmer vehicles, ATVs, golf carts, etc. that often run on uneven roads.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the utility model.

Fig. 2 is a schematic diagram of the external structure of the swing arm of the utility model.

Fig. 3 is a schematic diagram of the internal transmission structure of the swing arm of the utility model.

Fig. 4 is a schematic diagram of the internal sprocket chain transmission mechanism of the swing arm of the utility model.

Fig. 5 is a partial structural diagram of an all-terrain vehicle to which the utility model is applied.

Among them: 1. Shock absorber; 2. Coil spring; 3. Swing arm; 4. Transmission shaft sleeve connected to the gearbox; 5. Drive shaft sleeve connected to the wheel; 6. Outer cover shell; 7. On the swing arm 8, rib plate; 9, circular cover; 10, fixed connection seat on the vehicle frame; 31, driving wheel; 32, driven wheel; 33, chain; 41, driving wheel; 42, driven wheel; 43. Chain.

detailed description

1, 2, 3, and 4, the vehicle rear suspension structure of this embodiment mainly includes three parts: a shock absorber 1, a coil spring 2, and a swing arm 3, wherein the swing arm 3 includes a connecting gear The transmission shaft casing 4 of the box, the transmission shaft casing 5 connected to the wheel, the internal sprocket chain transmission mechanism (Fig. 4) and the outer cover shell 6. At the same time, the upper side of the swing arm 3 is provided with a shock absorber connection seat 7, Ribs 8 are provided around the drive shaft sleeve 4 of the gearbox and the drive shaft sleeve 5 connected to the wheels to strengthen the stability of the drive shaft. In addition, in order to see the internal structure or facilitate maintenance later, the outer cover shell Specially designed circular cover 9 on the 6, there is respectively one on the big head side and the little head side.

One end of the shock absorber 1 is connected to the fixed connection seat 7 on the swing arm, and the other end is connected to the fixed connection seat 10 on the vehicle frame. The center line is the rotation of the central axis, and then it is transmitted to the shock absorber 1, and the purpose of shock absorption is realized under the damping force of the shock absorber 1; the coil spring 2 is set outside the shock absorber 1, when the rear wheel and the swing arm 3 It can be buffered when it is subjected to up and down forces, so as to realize the bearing function of the coil spring 2; the large end of the swing arm 3 is connected to the rear wheel, and the small end is connected to the gearbox, and there is a sprocket chain transmission mechanism inside, as shown in Figure 3 and Figure 3. 4 (31 in Figure 3 represents 41 in Figure 4, which is a driving wheel; 32 in Figure 3 represents 42 in Figure 4, which is a driven wheel; 33 in Figure 3 represents 43 in Figure 4, which is a chain), The power transmitted from the gearbox is transmitted to the rear wheels through the sprocket chain transmission mechanism, so as to realize the driving of the rear wheels. A set of this device is respectively connected to the left and right sides of the rear frame of the vehicle to form a complete independent rear suspension system, as shown in Figure 5.

Claims (3)

1. a kind of independent rear suspension device with transmission agency, mainly includes three parts：Damper（1）, helical spring（2）、 Swing arm（3）, it is characterised in that：Swing arm（3）Drive-shaft tunnel including connecting gearbox（4）, connection wheel drive-shaft tunnel （5）, internal sprockets chain drive and outer covering shell（6）, meanwhile, swing arm（3）Upside is provided with the connecting seat of damper （7）, the drive-shaft tunnel of gearbox（4）With the drive-shaft tunnel of connection wheel（5）Around be provided with floor（8）, and whole Outer covering shell（6）It is provided with circular lid（9）, big rostral and small rostral respectively have one.

2. a kind of independent rear suspension device with transmission agency according to claim 1, it is characterised in that：Damper （1）Fixed connecting seat in the connection swing arm of one end（7）, the fixed connecting base on other end connecting vehicle frame（10）, when trailing wheel by Whole swing arm during impact（3）Understand to connect the drive-shaft tunnel of gearbox（4）Center line centered on axle rotate, and transmit therewith To damper（1）, and in damper（1）Damping force effect under realize damping purpose.

3. a kind of independent rear suspension device with transmission agency according to claim 1, it is characterised in that：Swing arm（3） Big rostral connection rear wheel, small rostral connects gearbox, and there is sprocket wheel chain drive inside, gearbox is passed over Power passes to rear wheel by sprocket wheel chain drive, and the driving of rear wheel is realized with this.