Utility model content
For the defect that prior art exists, the utility model provides a kind of breakaway-element independent suspension back axle assembly of horizontal multi-disc leaf spring, can effectively solve the problem.
The technical solution adopted in the utility model is as follows:
The utility model provides a kind of breakaway-element independent suspension back axle assembly of horizontal multi-disc leaf spring, comprising: rear axle support assembly (1), trammel beam assembly (2), rear plate spring assembly (3), left back goat's horn (4), right back goat's horn (5), left damper (6) and right damper (7);
Described left back goat's horn (4) and described right back goat's horn (5) are symmetrical arranged, the lower end of described left back goat's horn (4) is horizontally arranged with 4-1 attaching parts, and the upper end of described left back goat's horn (4) is horizontally arranged with 4-2 attaching parts; The lower end of described right back goat's horn (5) is horizontally arranged with 5-1 attaching parts, and the upper end of described right back goat's horn (5) is horizontally arranged with 5-2 attaching parts;
Described rear plate spring assembly (3) is arranged between described left back goat's horn (4) and described right back goat's horn (5), and, the left end of described rear plate spring assembly (3) is fixedly connected with the 4-1 attaching parts of described left back goat's horn (4), and the right-hand member of described rear plate spring assembly (3) is fixedly connected with the 5-1 attaching parts of described right back goat's horn (5);
The middle part of the fixing plate spring assembly (3) in the rear of base plate of described rear axle support assembly (1); Described trammel beam assembly (2) is fixed on the top of described rear axle support assembly (1); The left side of described rear axle support assembly (1) and right side are respectively arranged with the 1st mounting rail (1-1) and the 2nd mounting rail (1-2); Described 1st mounting rail (1-1) and described 2nd mounting rail (1-2) are for being fixed to vehicle body or chassis by rear axle support assembly (1);
Described trammel beam assembly (2) is four segment structures, is followed successively by leaf spring (2-4) on leaf spring (2-1) on left back bridge, left shift fork (2-2), right shift fork (2-3) and right back bridge from left to right; Wherein, on described left back bridge, the left end of leaf spring (2-1) is left leaf spring steel bushing assembly (2-5), and this left leaf spring steel bushing assembly (2-5) is fixed to the 4-2 attaching parts of described left back goat's horn (4); On described left back bridge, the right-hand member of leaf spring (2-1) is rotatably connected by the left end of the 1st S. A. (2-6) with described left shift fork (2-2); The left end of described right shift fork (2-3) is the groove (2-7) suitable with the left end of described left shift fork (2-2); The left end of described left shift fork (2-2) is positioned at described groove (2-7), when described left shift fork (2-2) is rotated, drives described right shift fork (2-3) to rotate backward by friction force; The right-hand member of described right shift fork (2-3) is rotatably connected by the 2nd S. A. (2-8) and the left end of leaf spring (2-4) on described right back bridge, on described right back bridge, the right-hand member of leaf spring (2-4) is right panel spring steel bushing assembly (2-9), and this right panel spring steel bushing assembly (2-9) is fixed to the 5-2 attaching parts of described right back goat's horn (5);
In addition, described 1st S. A. (2-6) through being opened in the left mounting hole of described rear axle support assembly (1), described trammel beam assembly (2) through the right mounting hole being opened in described rear axle support assembly (1), thus is fixed to described rear axle support assembly (1) by described 2nd S. A. (2-8);
The bottom of described left damper (6) is fixed to the 4-1 attaching parts of described left back goat's horn (4), and the top of described left damper (6) is fixed to vehicle body; The bottom of described right damper (7) is fixed to the 5-1 attaching parts of described right back goat's horn (5), and the top of described right damper (7) is fixed to vehicle body.
Preferably, described left damper (6) and described right damper (7) are piston rod.
Preferably, described rear plate spring assembly (3) is superposed by least two rear leaf spring bottom sheet and forms, and is bolted together.
The breakaway-element independent suspension back axle assembly of the horizontal multi-disc leaf spring that the utility model provides has the following advantages:
(1) coil spring in original independent suspension and swing arm unite two into one by transversal spring, both there is the travelling comfort of independent suspension, have both again have structure simple, take up room little, part is few, cost is low, take up room little and high reliability, is beneficial to the manufacturing in later stage.
(2) realized the performance of breakaway-element back axle by multi-disc leaf spring and damper, ensureing that structure is simple while, realize good riding stability and travelling comfort.
(3) by a kind of trammel beam assembly of special construction, make automobile have excellent anti-dumping effect, improve driving safety.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in detail:
With reference to figure 1-Fig. 5, the utility model provides a kind of breakaway-element independent suspension back axle assembly of horizontal multi-disc leaf spring, comprising: rear axle support assembly 1, trammel beam assembly 2, rear plate spring assembly 3, left back goat's horn 4, right back goat's horn 5, left damper 6 and right damper 7; Below respectively each parts are described in detail:
(1) left back goat's horn and right back goat's horn
Left back goat's horn 4 and right back goat's horn 5 are symmetrical arranged, and the lower end of left back goat's horn 4 is horizontally arranged with 4-1 attaching parts, and the upper end of left back goat's horn 4 is horizontally arranged with 4-2 attaching parts; The lower end of right back goat's horn 5 is horizontally arranged with 5-1 attaching parts, and the upper end of right back goat's horn 5 is horizontally arranged with 5-2 attaching parts;
Wherein, each attaching parts can be bolt hole, by each attaching parts, trammel beam assembly, rear plate spring assembly, left damper and right damper is fixed on goat's horn.
(2) plate spring assembly afterwards
Rear plate spring assembly 3 is arranged between left back goat's horn 4 and right back goat's horn 5, and the left end of rear plate spring assembly 3 is fixedly connected with the 4-1 attaching parts of left back goat's horn 4, and the right-hand member of rear plate spring assembly 3 is fixedly connected with the 5-1 attaching parts of right back goat's horn 5;
Adopt the steel spring of said structure form, effectively can play damping effect, improve road-ability.
In addition, improve as one, with reference to figure 1, the rear plate spring assembly that the utility model provides, is superposed by least two rear leaf spring bottom sheet and forms, and in FIG, is 5 rear leaf spring bottom sheet superposition compositions, and is bolted together at middle part.The advantage of this kind of version is: when driving, and because steel spring is elastic element, therefore, phase mutual friction between adjacent steel laminated spring, plays certain shock damping action, thus increases travelling comfort; In addition, rear plate spring assembly horizontal cross is arranged, can strengthen vehicle bridge entirety antitorque simultaneously, increases safety.
(3) rear axle support assembly
The base plate of rear axle support assembly 1 is fixed on the middle part of rear plate spring assembly 3; The top stable equilibrium bar assembly 2 of rear axle support assembly 1; The left side of rear axle support assembly 1 and right side are respectively arranged with the 1st mounting rail 1-1 and the 2nd mounting rail 1-2; 1st mounting rail 1-1 and the 2nd mounting rail 1-2 is used for rear axle support assembly 1 to be fixed to vehicle body or chassis;
(4) trammel beam assembly
Trammel beam assembly belongs to the core innovative part of the back axle assembly that the utility model provides, with reference to figure 6, for the structural representation of trammel beam assembly, trammel beam assembly 2 is four segment structures, is followed successively by leaf spring 2-4 on leaf spring 2-1 on left back bridge, left shift fork 2-2, right shift fork 2-3 and right back bridge from left to right; Wherein, on left back bridge, the left end of leaf spring 2-1 is left leaf spring steel bushing assembly 2-5, and this left leaf spring steel bushing assembly 2-5 is fixed to the 4-2 attaching parts of left back goat's horn 4; On left back bridge, the right-hand member of leaf spring 2-1 is rotatably connected by the left end of the 1st S. A. 2-6 and left shift fork 2-2; The left end of right shift fork 2-3 is the groove 2-7 suitable with the left end of left shift fork 2-2; The left end of left shift fork 2-2 is positioned at groove 2-7, when left shift fork 2-2 rotates, drives right shift fork 2-3 to rotate backward by friction force; The right-hand member of right shift fork 2-3 is rotatably connected by the left end of leaf spring 2-4 on the 2nd S. A. 2-8 and right back bridge, and on right back bridge, the right-hand member of leaf spring 2-4 is right panel spring steel bushing assembly 2-9, and this right panel spring steel bushing assembly 2-9 is fixed to the 5-2 attaching parts of right back goat's horn 5;
In addition, the 1st S. A. 2-6 through being opened in the left mounting hole of rear axle support assembly 1, trammel beam assembly 2 through the right mounting hole being opened in rear axle support assembly 1, thus is fixed to rear axle support assembly 1 by the 2nd S. A. 2-8;
The trammel beam assembly that the utility model provides, for carrying the trammel beam assembly of elastic swing arm, its two ends are connected on the rear goat's horn of vehicle respectively, middle trammel beam attaching parts is fixed on vehicle body or chassis by rear axle support, therefore, when vehicle is turned or the larger change of body gesture generation in the process of moving, when being such as tilted to the left, left side wheel can be forced down, goat's horn is driven then to drag down the outer end of leaf spring 2-1 on the left back bridge in left side, and then drive left shift fork 2-2 to rotate on the 1st axial rotary, and when left shift fork 2-2 upwards rotates, right-hand member due to left shift fork is positioned at the groove by right shift fork, therefore, left shift fork drives right shift fork to rotate to same direction by friction, and when right shift fork upwards rotates, leaf spring 2-4 on the right back bridge on the right side of forcing down, finally forces right side wheels to follow left side wheel and moves in the same way.Thus impel left-leaning vehicle body rebalancing, reach the object of anti-dumping.Advantage to play the effect of anti-dumping, also can participate in the structure of suspension, takes on the effect of part swing arm.
(5) damper
The bottom of left damper 6 is fixed to the 4-1 attaching parts of left back goat's horn 4, and the top of left damper 6 is fixed to vehicle body; The bottom of right damper 7 is fixed to the 5-1 attaching parts of right back goat's horn 5, and the top of right damper 7 is fixed to vehicle body.Left and right damper all can adopt piston rod, and when driving, when wheel tyre bob, band fluctuation dampers which carries out expanding-contracting action simultaneously, realizes damping effect.Such as, when left side tire is upwards beated, left damper is made to carry out contractive action; When left side tire is beated, left damper is made to carry out elongation action downwards.
In the utility model, steel spring and damper form bumper, and, by the design to steel spring and damper structure form, improve the damping effect of bumper.
As can be seen here, the breakaway-element independent suspension back axle assembly of the horizontal multi-disc leaf spring that the utility model provides, has the following advantages:
(1) coil spring in original independent suspension and swing arm unite two into one by transversal spring, both there is the travelling comfort of independent suspension, have both again have structure simple, take up room little, part is few, cost is low, take up room little and high reliability, is beneficial to the manufacturing in later stage.
(2) realized the performance of breakaway-element back axle by multi-disc leaf spring and damper, ensureing that structure is simple while, realize good riding stability and travelling comfort.
(3) by a kind of trammel beam assembly of special construction, make automobile have excellent anti-dumping effect, improve driving safety.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should look protection domain of the present utility model.