A kind of single trailing arm type independent suspension that has hydro-pneumatic spring
Technical field
The invention belongs to the automotive suspension technical field, be specifically related to a kind of single trailing arm type independent suspension that has hydro-pneumatic spring.
Background technology
Automotive suspension is elasticity bonded assembly parts between vehicle frame and the vehicle bridge, mainly is made up of elastic element, guide piece and three essential parts of shock absorber.The parts that can comprise some specific functions in addition are like bump rubber and stabilizer rod etc.According to the classification of guiding mechanism pattern, automotive suspension can be divided into independent suspension and dependent suspension two big classes.The wheel of independent suspension links to each other with vehicle frame through suspension separately, and the left and right wheel of dependent suspension is contained on the integral shaft, links to each other with vehicle frame through its suspension again.Independent suspension has following several kinds of patterns: single swing arm type, single trailing arm type, single oblique arm type, trailing arm torsion girder-like, double wish-bone arm type, multi-rod, MacPherson type.The single trailing arm type independent suspension is the suspension pattern that wheel is connected to ground with a trailing arm, and hinge point adopts axle sleeve.This when being suspended in wheel bounce, camber angle is with prenex constant, and single trailling arm type suspension is simple in structure, quality is little.Under a lot of situation, single trailling arm type suspension adopts hydro pneumatic suspension, and hydro pneumatic suspension is a Special Category of air suspension, and its elastic element adopts hydro-pneumatic spring.Hydro-pneumatic spring is with respect to other elastic element, has that volume is little, light weight, load-carrying capacity be strong, realizes the bodywork height adjustment easily and has characteristics such as damping shock absorption and self-lubricating concurrently but traditional single longitudenal arm independent suspension; Car load is to be passed to wheel through vehicle frame, causes the vehicle frame own wt to increase, because trailing arm and vehicle frame adopt quill shaft to the mounting structure that limits; Wheel tilts with vehicle frame; Can not adapt to the road surface and swing, cause tire force inhomogeneous, wear on tyres is very fast.
Summary of the invention
Technical matters to be solved by this invention provides a kind of single trailing arm type independent suspension that has hydro-pneumatic spring that wheel is stressed evenly, reduce the vibration of vehicle frame that makes.
For solving the problems of the technologies described above, technical scheme of the present invention is:
A kind of single trailing arm type independent suspension that has hydro-pneumatic spring; Comprise single longitudenal arm and hydro-pneumatic spring, said single longitudenal arm comprises connection bearing, trailing arm, butt flange, spring bearing, axle box, and said trailing arm is a four sides tapered arm structure; One end on the taper top of said trailing arm connects with the said bearing that is connected; One end of the conical bottom of said trailing arm is connected with said axle box, welds said butt flange in said axle box both ends of the surface, welds said spring bearing at said axle box rear side; Said connection bearing is the monaural ring structure, and plain radial bearing is installed in the earrings; The cylinder barrel end of said hydro-pneumatic spring is the ears ring structure.
In the ears ring of said hydro-pneumatic spring, copper bush is installed.
Between the hydro-pneumatic spring cylinder barrel of said hydro-pneumatic spring and piston rod, be provided with orienting sleeve.
Gas spring rod end at said hydro-pneumatic spring adopts the monaural ring structure, and plain radial bearing is installed in the ear handle.
The invention has the beneficial effects as follows wheel relatively about the vehicle frame, swing, wheel is stressed evenly, improves tire and carries, the adhesive ability of vehicle also is utilized; Secondly can compensate of the impact of abominable road conditions, reduce the vibration of vehicle frame, improve stability and ride comfort that car load goes vehicle frame.The application of ears hydro-pneumatic spring has changed the bang path of traditional power, and the side force that vehicle receives can be passed to vehicle body through hydro-pneumatic spring, and vehicle frame does not receive side force, the antitorque requirement of vehicle frame is reduced, and then make body frame structure for automotive design lightweight; Band ears hydro-pneumatic spring collection elastic element, damping element, director element are one, make the suspension frame structure design simplification, have reduced the vehicle nonspring carried mass.
Description of drawings
Below in conjunction with the accompanying drawing and the specific embodiment technical scheme of the present invention is further specified.
Fig. 1 has the single trailing arm type independent suspension single longitudenal arm structural front view of hydro-pneumatic spring for the embodiment of the invention;
Fig. 2 has the single trailing arm type independent suspension single longitudenal arm structure birds-eye view of hydro-pneumatic spring for the embodiment of the invention;
Fig. 3 has the single trailing arm type independent suspension hydro-pneumatic spring structural front view of hydro-pneumatic spring for the embodiment of the invention;
Fig. 4 has the single trailing arm type independent suspension hydro-pneumatic spring structure birds-eye view of hydro-pneumatic spring for the embodiment of the invention;
Fig. 5 is the single trailing arm type independent suspension mounting structure assembly drawing that the embodiment of the invention has hydro-pneumatic spring;
Fig. 6 be the embodiment of the invention have hydro-pneumatic spring single trailing arm type independent suspension mounting structure A to view;
Fig. 7 is the single trailing arm type independent suspension mounting structure birds-eye view that the embodiment of the invention has hydro-pneumatic spring.
The specific embodiment
A kind of single trailing arm type independent suspension that has hydro-pneumatic spring comprises single longitudenal arm 9 and hydro-pneumatic spring 10, and is as depicted in figs. 1 and 2, and single longitudenal arm comprises connection bearing 1, trailing arm 2, butt flange 3, spring bearing 4, axle box 5.Trailing arm 2 is a four sides tapered arm structure, an end on the taper top of trailing arm 2 with is connected bearing 1 connection, an end of the conical bottom of trailing arm 2 is connected with axle box 5, is welded to connect flange 3 in axle box 5 both ends of the surface, welds spring bearing 4 at axle box 5 rear sides.Like Fig. 7, connect bearing 1 and adopt the monaural ring structure, plain radial bearing 13 is installed in the earrings.Like this wheel relatively about the vehicle frame, swing.
Like Fig. 3 and shown in Figure 4, the cylinder barrel end of hydro-pneumatic spring is an ears ring structure 7, and copper bush 6 is installed in ears ring 7, between hydro-pneumatic spring cylinder barrel and piston rod, is provided with orienting sleeve 8.Like Fig. 7, the hydro-pneumatic spring rod end is the monaural ring structure, and plain radial bearing 11 is installed in the earrings.
Like Fig. 5, Fig. 6 and shown in Figure 7; When the single trailing arm type independent suspension that has hydro-pneumatic spring of present embodiment being used on the electric drive wheel quarry tipper of 110 tons of a kind of diaxons, back-wheel drive, front-wheel steering, carrying; Above-mentioned band oscillating axle single longitudenal arm 9 vertically is arranged in dumping car wheel 15 the place aheads, connects bearing 1 and be connected through vehicle frame bearing pin 14 with vehicle frame.Reductor 19 is installed on the butt flange 3 at axle box 5 two ends, and reductor 19 is connected with wheel 15, and reductor rotating band motor-car wheel rotates.Band ears hydro-pneumatic spring 10 is arranged in wheel 15 rears, and the ears handle of hydro-pneumatic spring 10 and vehicle frame journal stirrup 18 are hinged through upper pin 17 with the two journal stirrups 16 of container, and hydro-pneumatic spring 10 is hinged through lower bearing pin 12 with the spring bearing 4 on the axle box.
In hydro-pneumatic spring 10 structures, adopted widened ears structure and extended type orienting sleeve structure can improve the hydro-pneumatic spring resistance to bending, transmitted side force, played guiding and stabilization to vehicle body.
It should be noted last that; The above specific embodiment is only unrestricted in order to technical scheme of the present invention to be described; Although with reference to preferred embodiment the present invention is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement technical scheme of the present invention; And not breaking away from the spirit and the scope of technical scheme of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.