RU180518U1 - REAR BALANCING SUSPENSION OF A VEHICLE - Google Patents

Abstract

The utility model relates to the field of mechanical engineering, namely to the nodes of the stabilization systems of the rear air suspension of vehicles. The rear balancing suspension of the vehicle contains multi-leaf springs (1), longitudinal reaction rods (2), transverse reaction rods (3). The multi-leaf springs (1) are fixed with their central part on the supports (4) of the shoe (5) with the help of plates (6), step-ladders (7) and nuts (8), while the front and rear parts of the springs lie on the supports (9). Multi-leaf springs (1) hold the bridges with swing limiters (10). The longitudinal reaction rods (2) are pivotally attached to the lower parts of the bridges on the left and right at one end on the welded lower right and left levers (11), and the other to the ends of the coupler (12) of the brackets (13) using spacers (14), spacer sleeves (fifteen). The transverse reaction rods (3) are adjustable, pivotally attached at one end to the frame through the brackets (16), and the other to the bridges via levers (17) welded to the casings. U-shaped rods (18) are pivotally fixed to their lower parts of the bridges on the welded lower right and left levers (11) with their bent ends. U-shaped rods (18) are installed in the middle part on racks (19), which are mounted on the frame through brackets (20) and (21). On the outer sides of the lower shelves of the side members above the bridges, rubber compression buffers are fixed to the right and left (22). Between the middle and rear axles to the cross member, torsion-type rods (23) are hinged through the brackets (24) at one end, and the adjustable axle rods (3) perpendicular to the axles of the axles are adjusted vertically to the middle part, while the adjustable transverse reaction rods (3) and torsion-type rods (23) form a single T-shaped unit. A technical solution was developed that improved the stability of the car's suspension. 4 ill.

Description

The utility model relates to the field of mechanical engineering, namely to the nodes of the stabilization systems of the rear air suspension of vehicles.

A stabilizer bar is known, comprising a U-shaped torsion bar fixed in supports on a frame and earrings pivotally mounted on one side to the bridge beam, and on the other sides to the bent ends of the torsion bar (see aut. Certificate SU No. 1828813 A1, IPC ⁵ B60G 21/00, published July 23, 1993).

Known stabilizer bar of the vehicle, containing a rod made with a transverse section mounted on the axis of the wheels by means of elastic bushings, and longitudinal sections directed to the middle part of the frame and connected with it through the racks, while the longitudinal sections of the rod are made of a curved shape and are connected between by means of axles and elastic bushings (see utility model patent No. 157649 U1, IPC B60G 21/04 (2006.01), B60G 21/05 (2006.01), published on 12/10/2015).

A known vehicle suspension comprising a bridge beam, air springs mounted on brackets, shock absorbers, lower longitudinal reaction rods mounted symmetrically and parallel to the longitudinal axis, a transverse reaction rod, one end of which is pivotally connected to the frame, and the other end to the bridge beam, in addition , the suspension is equipped with a stabilizer and an upper longitudinal rod mounted parallel to the longitudinal axis and connected at one end to the frame, the other to the beam of the bridge, The upper and lower longitudinal rods to the bridge beam are made using one bracket, where the transverse rod is made curved and the transverse rod is installed above the bridge beam (see Utility Model Patent No. 158670 U1, IPC B60G 3/00 (2006.01), B60G 11/00 (2006.01), B60G 7/00 (2006.01), published on 01/20/2016).

Known suspension with a traverse containing a V-shaped reactive rod, lower reactive longitudinal rods and elastic elements made in the form of air springs mounted on the traverse on both sides of the continuous axis, the stabilizer side roll, fixed at the extreme point of the cross beam, and the mounting of the traverse to the continuous axis made using one-piece and detachable connections (see utility model patent No. 114000 U1, IPC B60G 21/04 (2006.01), published on 03/10/2012).

Known rear suspension containing springs with jet rods having rubber joints, anti-roll bar, buffers, balancing device, which is equipped with two axles, pressed into brackets and shoes with pressed bushings in them, the stabilizer bar, while the ends of the springs are welded to the axle beams , and in the middle part, springs are attached to the shoe by the steps, the shoes are fixed on the axles with nuts and bolts (see Fig. 95 at the Internet address: http://kama-avtodetal.ru/tehspravochnik/avtomobili-kamaz-6460-rukovodstvo -po-ustroj stvu-tehnicheskomu-obsluzhivaniyu-i-remontu / podveska /).

The prototype of the claimed technical solution in terms of the set of essential features and the technical result achieved is the rear balancer suspension of the vehicle used in KAMAZ-6520, 6460 vehicles, which contains multi-leaf springs fixed in the central part to the shoe supports using linings, ladders and nuts, where the front and the rear parts of the springs lie on supports welded on the middle and rear axles; jet rods, fixed at one end on the lower right and left levers, which are located on the lower parts of the bridges, at the other ends, to the ends of the tie brackets with bushings, bolts and nuts, U-shaped rods of lateral stability mounted in the middle part on racks that are fixed on the frame through the bracket with bolts and nuts, rubber compression buffers, is additionally equipped with guiding reaction rods, which are pivotally fixed at one end on the bridges through the brackets, and others - to the cross member of the frame through the bracket the chain with bolts, nuts and washers (see the rear suspension of KAMAZ-6520, 6460 cars at the Internet address: http://kama-avtodetal.ru/tehspravochnik/avtomobili-kamaz-6460-rukovodstvo-po-ustrojstvu-tehnicheskomu- obsluzhivaniyu-i-remontu / podveska /).

Known solutions in most cases do not allow to provide sufficient indicators of the stabilization system for dynamic and static stability. The middle and rear axles are suspended in such a way that when they move, they swing to the right and left, which affects negative stability indicators and the fast wear of the tires of the wheels of the car, and the required lateral stability of the car is not provided, since in most cases only guide elements are used: rocker rods and springs, which leads to insufficient rigidity. In addition, the separate arrangement of the upper rods forces the use of additional brackets and mounting parts, which adds complexity to the design.

The objective of this utility model is to improve vehicle suspension performance.

The task is achieved in that the rear balancing suspension of the vehicle, containing multi-leaf springs mounted with its central part on the shoe supports, the front and rear parts of the springs lying on the supports welded on the middle and rear axles, longitudinal reaction rods pivotally attached at one end to the lower parts of the bridges, and the other to the ends of the bracket ties, transverse reaction rods pivotally attached at one end to the frame through the brackets with bolts and nuts, and the other to the bridge cut welded levers, U-shaped rods mounted on racks, rubber compression buffers, is additionally equipped with torsion-type rods pivotally attached at one end to the cross between the middle and rear axles via brackets, the other at the middle of the transverse reaction rods, which are pivotally at one end fixed to the frame through brackets, to others - to the bridges through levers welded on the casings, while the transverse reaction rods and torsion-type rods form a single T-shaped unit. In the particular case of execution in the rear balancer suspension, the transverse reaction rods are made adjustable.

The set of distinctive features, namely, that the rear balancing suspension of the vehicle is additionally equipped with torsion bar rods pivotally attached at one end to the cross between the middle and rear axles via brackets, and the other to the middle part of the transverse reaction rods, which at one end are pivotally attached to the frame through brackets, and others - to bridges through levers welded on the casings, while the transverse reaction rods and torsion bar rods form a single T-shaped assembly, it helps to improve the stability improvements in vehicle suspension, as well as to eliminate oscillations of the bridge.

An analysis of the known technical solutions carried out according to the scientific, technical and patent documentation showed that the set of essential features of the claimed technical solution is not known from the prior art, therefore, it meets the patentability condition of the utility model “novelty”.

The utility model is illustrated by the following drawings:

FIG. 1 - rear balancing suspension of the transport, general view;

FIG. 2 - the same, top view;

FIG. 3 - the same in isometry.

The rear balancing suspension of the vehicle contains multi-leaf springs 1, longitudinal reaction rods 2, transverse reaction rods 3. The multi-leaf springs 1 are fixed with their central part to the supports 4 of the shoe 5 with the help of plates 6, stepladders 7 and nuts 8, while the front and rear parts of the springs lie on the supports 9, welded on the middle and rear axles. Multi-leaf springs 1 hold the bridges using swing limiters 10. To the lower parts of the bridges left and right, longitudinal reaction rods 2 are hinged at one end on the welded lower right and left levers 11 and to the ends of the tie 12 of the brackets 13 with spacers 14, spacers bushings 15, bolts and nuts. The transverse reaction rods 3 are adjustable, pivotally fixed at one end to the frame through brackets 16 with bolts and nuts, and the other to bridges through levers 17 welded to the casings using conical fingers, nuts and cotter pins.

U-shaped rods 18 are pivotally fixed to their lower parts of the bridges on the welded lower right and left levers 11. U-shaped rods 18 are mounted in the middle part on racks 19, which are mounted on the frame through brackets 20 and 21 with bolts and nuts. On the outer sides of the lower flanges of the side members above the bridges, rubber compression buffers 22 are fixed to the right and left. Between the middle and rear axles to the cross member, torsion-type rods 23 are pivotally mounted through brackets 24 and fixed with bolts and nuts, and the other to the middle part is adjustable reaction rods 3 perpendicular to the axis of the bridges, while the adjustable transverse reaction rods 3 and torsion rod 23 form a single T-shaped unit.

The device operates as follows.

When operating a car, there will inevitably be movement along bumps, sharp bumps into pits and ledges, turns, turns, reversing. In this case, the vehicle should maintain its position as much as possible, be resistant to lateral rolls. When you turn right, the car will roll to the left. In this case, the transverse reaction rod 3 through the lever 17 abuts against the middle bridge. When turning left, go to the rear axle. Simultaneously with the transverse reaction rods 3 in the same plane, they help to keep the car from overturning the torsion-type thrust 23, working on twisting when the axles are skewed.

The transverse reaction rods 3 exclude lateral vibrations of the bridge and ensure the stability of the bridge due to its retention from lateral moves, that is, they provide lateral stability of the vehicle and prevent it from tipping over.

During operation, as the tires wear out, the adhesion of the wheels to the road deteriorates, the likelihood of a car skidding increases. The implementation of the transverse reaction rods 3 adjustable, can also ensure the stability of the bridge due to its retention from transverse moves. In addition, with adjustable transverse reaction rods 3, their overall length can be changed, which allows to increase the radius of travel, reduce wear on the wheels and increase their grip, and generally increase the lateral stability of the car.

Torsion-type rods 23 are longitudinal guides and work together with adjustable transverse reaction rods 3, which ensures lateral stability of the vehicle.

The claimed combination of distinctive features allows to improve the stability of the suspension, as well as to exclude vibrations of the bridge.

The inventive utility model meets the requirement of industrial applicability, its implementation is possible on standard technological equipment using previously developed technologies.

Claims (2)

1. The rear balancing suspension of the vehicle, containing multi-leaf springs mounted with its central part on the shoe supports, the front and rear parts of the springs lying on the supports welded on the middle and rear axles, longitudinal reaction rods pivotally attached at one end to the lower parts of the axles, and to the other - to the ends of the bracket brackets, transverse reaction rods pivotally fixed at one end to the frame through the brackets with bolts and nuts, and to the other - to the bridge through the welded levers, U-shaped pants weights mounted on racks, rubber compression buffers, characterized in that it is additionally equipped with torsion-type rods pivotally attached at one end to a cross between the middle and rear axles through brackets, the other at the middle of transverse reaction rods, which at one end are pivotally attached to the frame through brackets, and others - to bridges through levers welded on the casings, while transverse reaction rods and torsion-type rods form a single T-shaped unit. 2. The rear balancer suspension according to claim 1, characterized in that the transverse reaction rods are adjustable.

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