RU125933U1 - VEHICLE WHEEL SUSPENSION - Google Patents

Abstract

A vehicle wheel suspension comprising a cross member mounted on a vehicle body, upper and lower wishbones, a swing arm, a spring, a shock absorber inside the spring, rebound and compression buffers, anti-roll bars, steering gear with steering rods, characterized in that the suspension with steering gear and tie rods, combined into a single unit, allowing you to adjust the angles of the wheels before installing it on the vehicle, upper and lower levers connected Nena with swiveling using non-separable ball bearings with reduced torque resistance and swing rotation of the ball stud, the arms are connected to the cross bar via buffer blocks increased durability, in the hub node unregulated used, maintenance-free, double-row tapered roller bearings.

Description

The utility model relates to the field of engineering, in particular, to the suspension of wheels of vehicles.

Known suspension of the wheels of a vehicle, comprising a cross member mounted on a vehicle body, upper and lower wishbones, a swing arm connected to the levers by means of ball joints. The inner joints of the upper and lower suspension arms are welded rubber-metal joints without an outer cage. To adjust the camber and the longitudinal inclination of the axis of rotation between the axis of the upper arms and the bracket of the suspension cross member, adjusting shims are installed. The wheel hub is mounted on the axle of the suspension strut on 2 conical single row roller bearings. Wheel brakes are mounted on the suspension strut. A steering drive is installed on the suspension cross member, consisting of a longitudinal link, two lateral links, a lateral link and two pendulum arms [1].

The disadvantages of this design of the vehicle suspension are:

- low durability of welded rubber-metal hinges without an external clip;

- the need for periodic adjustment of the axial clearance of the bearings of the hub unit;

- the need for periodic replenishment and replacement of the grease of the bearings of the hub unit;

- poor self-return of the steered wheels when exiting the turn, caused by the presence of eight ball joints of the steering rods, 2 cylindrical joints of the pendulum arms and 4 ball joints of the suspension with a large total resistance to returning the wheels.

- increased complexity of adjusting the installation angles of the steered wheels due to the need to hang the vehicle to install or remove shims;

- reduction in the parameters of stability, controllability and braking properties due to the large running-in arm.

The technical result achieved by the claimed solution is to increase the reliability and reduce the complexity of the maintenance of the vehicle suspension, as well as improve the stability and controllability of the car and its braking properties:

The specified result is achieved due to:

- the use of reliable high-quality ball bearings of the suspension, which do not require adjustment and replenishment of lubricant during the entire life of the hinge, with a reduced moment of resistance to swing and rotation of the ball pin relative to the housing;

- the use of unregulated, maintenance-free, double-row, tapered wheel bearing;

- the use of welded silent blocks with an outer and inner metal sleeve, the durability of which is significantly increased due to the compression of the outer sleeve after vulcanization of the silent block;

- the use of smooth adjustment and eliminating the need to hang the vehicle when changing camber angles and the angle of the longitudinal tilt of the steering axle

- reduction of the running-in shoulder, which made it possible to apply a more progressive diagonal circuit separation circuit of the brake system and reduced the load on the steering gear when the vehicle is moving;

- application of 4 ball joints in the steering drive.

The inventive design solution is illustrated by drawings, where:

Figure 1 - Suspension of the wheels of the vehicle (rear view)

Figure 2 - Suspension of the wheels of the vehicle (top view)

Figure 3 - Suspension of the wheels of the vehicle (section AA)

Figure 4 - Suspension of the wheels of the vehicle (section BB)

Figure 5 - Suspension of the wheels of the vehicle (section bb)

6 - Suspension of the wheels of the vehicle (section GG)

7 - Suspension of the wheels of the vehicle (prototype)

The suspension of the vehicle’s wheels is independent, on wishbones, with coil springs, double-acting hydraulic telescopic shock absorbers, anti-roll bar, integrated into a single unit with steering gear and steering rods.

The front suspension consists of the following main parts: cross member 1 of struts 8, lower 18 and upper 6 levers, front wheel hubs 11 with brake discs 10 and bearings 12, wheel brakes 9, spring 5, and shock absorbers 3 with compression and rebound buffers.

The front suspension strut is connected to the upper and lower levers by ball joints 7 and 14. of a non-separable design with a reduced moment of swing of the ball finger.

The suspension arms swing relative to their axles on the silent blocks 23 and 24.

The upper arms 6 are stamped, with welded bushings under the silent blocks. The silent blocks of the upper arm are installed in the brackets of the cross member using the adjusting eccentric bolts 22.

The lower levers 18 are a welded box part consisting of upper and lower stamped shells, a forged tip, 2 bushings and an anti-roll bar bracket.

The spring 5 is supported by the upper support coil through the rubber gasket 4 on the cross member bracket, and the lower coil through the gasket 4 on the lower lever.

Shock absorbers 3 with a recoil buffer integrated in the housing and a compression buffer mounted on the rod are installed inside the suspension springs. The lower end of the shock absorber with a pressed rubber-metal hinge 16 is attached to the lower arm. The upper end of the shock absorber rod is attached using rubber cushions 2 to the cross member bracket.

The stabilizer bar 17 is attached with the middle part to the cross member, and the ends to the lower levers with the help of pillows 25 and brackets 26.

The steering mechanism 19 is rigidly attached to the left bracket 20 of the cross member, and through the rubber cushion 27 with a clamp 28 to the right bracket 21 of the cross member.

The steering rod 15 is connected to the rotary lever 13 of the rack 8 of the front suspension.

The suspension installed in a special device allows you to adjust the angle of the camber, the angle of the longitudinal inclination of the axis of rotation and the angle of convergence of the wheels before installing the suspension on the vehicle, which significantly reduces the complexity of the vehicle assembly.

Source of information taken into account when preparing the application:

[1] Certificate for utility model of the Russian Federation No. 12810 dated 07/19/1999 - a prototype.

Claims (1)

A vehicle wheel suspension comprising a cross member mounted on a vehicle body, upper and lower wishbones, a swing arm, a spring, a shock absorber inside the spring, rebound and compression buffers, anti-roll bar, steering gear with steering rods, characterized in that the suspension with steering gear and tie rods, combined into a single unit, allowing you to adjust the angles of the wheels before installing it on the vehicle, upper and lower levers connected Nena with swiveling nondemountable via ball joints with reduced swing moment of resistance and the rotation of the ball stud, the arms are connected to the cross bar via buffer blocks enhanced durability, in the hub node unregulated used, maintenance-free, double-row tapered roller bearings.

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