CN102358128A

CN102358128A - Front suspension assembly

Info

Publication number: CN102358128A
Application number: CN2011102257967A
Authority: CN
Inventors: 班景能
Original assignee: HEFEI AUTOMOBILE AXLE CO Ltd
Current assignee: HEFEI AUTOMOBILE AXLE CO Ltd
Priority date: 2011-08-08
Filing date: 2011-08-08
Publication date: 2012-02-22

Abstract

The invention relates to a front suspension assembly. The front suspension assembly comprises a secondary vehicle frame (3), coil spring assemblies (5), shock absorbers (1) and lower swinging arm assemblies (2), wherein the two sides of the secondary vehicle frame (3) are respectively connected with left and right lower swinging arm (2) assemblies in a matching way; the front suspension assembly is characterized in that: a spring seat (31) positioned above the lower swinging arm (2) is respectively arranged on the two sides of the secondary vehicle frame; a coil spring assembly (5) is embedded into each spring seat (31); each coil spring assembly (5) is connected with the corresponding lower swinging arm (2) assembly; a steering knuckle (9) is arranged outside each lower swinging arm assembly (2); and a shock absorber (1) is arranged on each steering knuckle (9). The front suspension assembly has the advantages that: by using the structure that the coil springs and the shock absorbers are arranged separately, namely the springs are arranged below the secondary vehicle frame and the shock absorbers are arranged on the side surfaces of the secondary vehicle frame, the space occupation of a front suspension is reduced, and enough space is reserved for the arrangement of an engine; and the springs and the shock absorbers work separately so as to avoid mutual interference, reasonably play respective roles, and improve the stability and the smoothness of an overall vehicle.

Description

A kind of front suspension assembly

Technical field

The present invention relates to a kind of front suspension assembly that can be widely applied to the middle-size and small-size high-end multi-functional commercial vehicle/comm..vehicle of 14T～1.8T and high-end light card, microcaloire vehicle.

Background technology

Be suspended in when car body weight supported, buffering, absorb the wheel up-down vibration that road shocks etc. causes, prevent that vibration from directly reaching car body.Thereby improve driver and crew's comfort, protection goods, reduction car body dynamic stress partly, actv. reduces the unbalancing value in the wheel movement, thereby suppresses the vibration of wheel, improves riding stability.The tradition independent suspension structure is complicated, cost is high, keep in repair and transport inconvenience, and the space hold of existing double wishbone suspension is big, directly has influence on the layout of driving engine and steering swivel system.

Summary of the invention

The object of the invention is exactly big in order to overcome the space hold that has suspension now, directly has influence on the defective of the layout of driving engine and steering swivel system, and a kind of front suspension assembly is provided.

The technical solution adopted for the present invention to solve the technical problems is:

A kind of front suspension assembly; Comprise subframe, coil spring assembly, bumper, bottom arm assembly; The subframe both sides are connected with left and right bottom arm assembly respectively; It is characterized in that: the both sides of subframe have respectively a spring perch be positioned at down swing arm above, inlay a coil spring assembly in each spring perch, each coil spring assembly is connected with cooresponding bottom arm assembly; On each bottom arm assembly outside, be provided with a steering swivel, a bumper is installed on each steering swivel.

On the basis of above-mentioned main technical schemes, can increase following further perfect technical scheme:

Also be provided with a lateral connecting rod on the subframe, the two ends of lateral connecting rod are connected with left and right swing arm down respectively.

Tie bolt, nut were connected with subframe after swing arm was passed through one under each, simultaneously, also were connected with subframe through preceding tie bolt, a nut.

On the fastening end of preceding tie bolt, be provided with a taper pad.

The invention has the beneficial effects as follows that coil spring and bumper are arranged apart, spring arrangement is below subframe, and bumper is arranged in the structure of subframe side, has reduced taking of front overhang space, a lot of spaces of staying for the layout of driving engine; Spring and bumper be work separately, avoids mutual interference, has reasonably brought into play effect separately, has improved the stability of car load, ride comfort; Lateral connecting rod increases the roll rate of car load, reduces vehicle and crosses body roll curved or that concavo-convex road surface causes, increases stability and traveling comfort; The taper pad can prevent down the swing arm horizontal looseness; And the commonality of this suspension is high, applies to simultaneously on high-end light card, the microcaloire car.

Below in conjunction with accompanying drawing and embodiment the present invention is further specified.

Description of drawings:

Fig. 1 is the front view of present embodiment;

Fig. 2 is the birds-eye view of present embodiment;

Fig. 3 is the A-A cutaway view of present embodiment Fig. 1;

Fig. 4 is that the B of present embodiment Fig. 2 is to view;

Fig. 5 is the C-C cutaway view of present embodiment Fig. 2.

The specific embodiment

As shown in Figure 1, a kind of front suspension assembly of the present invention comprises subframe 3, and subframe 3 can promote the coupling stiffness of whole bridge, and to car load, all the other parts can be connected on the subframe 3 subframe 3 through bolted connection.

Subframe 3 both sides are connected with left and right bottom arm assembly 2 respectively, and each bottom arm assembly 2 has two place's point of connection with subframe 3, and is as shown in Figure 5; At first place, bottom arm assembly 2 has on first connecting arm, 21, the first connecting arms 21 that cross out and has connecting bore; Be inlaid with rubber bush 15 in the connecting bore,, have a pair of coaxial through hole on the connection support at the connection support that subframe 3 has a u shape; First connecting arm 21 can stretch into u shape and connect in the support, is connected with subframe 3 through tie bolt 4, nut after one, and is as shown in Figure 4; At second place, bottom arm assembly 21 has on second connecting arm, 22, the second connecting arms 22 that vertically stretch out and has connecting bore; Have a support at subframe 3, have through hole on the support, be inlaid with rubber bush 12 in the through hole of support; Second connecting arm 22 of following swing arm and subframe support are cascaded through a preceding tie bolt 14, nut, on the fastening end of preceding tie bolt 14, are provided with a taper pad 13, are used for the locking effect; Prevent bottom arm assembly 2 horizontal looseness, bottom arm assembly 2 was connected Rubber Parts, bolted connection with subframe 3, and Rubber Parts plays cushioning effect; When wheel bore the Uneven road impact, bottom arm assembly 2 car load was relatively swung separately;

As shown in Figure 3, the both sides of subframe 3 have respectively a spring perch 31 be positioned at bottom arm assembly 2 above, arrange coil spring assembly 5 between following swing arm and subframe; In spring perch 31, also be provided with cushion 10 and cooperate, play and alleviate to impact, damping and bear vertical load with coil spring assembly 5; In spring perch 31, has the spring column; The front end of spring column is provided with preceding bump rubber 11, can avoid subframe 3 and bottom arm assembly 2 rigid shocks, makes the body vibrations decay; According to the force analysis at each position of car load, coil spring assembly 5 structures can be designed to the asymmetric setting in the left and right sides;

As shown in Figure 2; On each bottom arm assembly 2 outside, be provided with a steering swivel 9; Steering swivel 9 is connected on the bottom arm assembly 2 through following swing arm ball pin assembly 7, and a bumper 1 is installed on each steering swivel 9, and an end of bumper 1 is fixed on the steering swivel 9; The other end is fixed on the vehicle body, and bumper 1 plays damping bradyseism effect;

Also be provided with a lateral connecting rod 16 on the subframe 3; The two ends of lateral connecting rod 16 are through a preceding Panhard rod pipe link assembly and a left side; Bottom right swing arm assembly 2 connects; Lateral connecting rod 16 centre portions are connected on the subframe through antifriction rubber spare and blanked part bolted mode, and Panhard rod mainly is that the roll rate that strengthens suspension prevents the automobile sideways overturning and improves car load ride comfort, stability.

Claims

1. front suspension assembly; Comprise subframe (3), coil spring assembly (5), bumper (1), bottom arm assembly (2); Subframe (3) both sides are connected with left and right swing arm (2) assembly down respectively; It is characterized in that: have a spring perch (31) in the both sides of subframe (3) respectively and be positioned at the top of swing arm (2) down, inlay a coil spring assembly (5) in each spring perch (31), each coil spring assembly (5) is connected with cooresponding swing arm (2) assembly down; On each bottom arm assembly (2) outside, be provided with a steering swivel (9), a bumper (1) is installed on each steering swivel (9).

2. a kind of front suspension assembly according to claim 1 is characterized in that: also be provided with a lateral connecting rod on the subframe, the two ends of lateral connecting rod are connected with left and right swing arm down respectively.

3. a kind of front suspension assembly according to claim 1; It is characterized in that: a pair of back tie bolt (4) is passed through in swing arm down, nut is connected with subframe (3) for each; Simultaneously, also be connected with subframe (3) through tie bolt (14), nut before a pair of.

4. a kind of front suspension assembly according to claim 3 is characterized in that: on the fastening end of preceding tie bolt, be provided with a taper pad (13).