CN102248881A

CN102248881A - Automobile engine suspension

Info

Publication number: CN102248881A
Application number: CN2011101291481A
Authority: CN
Inventors: 苏俊龙; 冯光仪; 彭红; 刘进; 周继学; 李凤琴
Original assignee: Chongqing Changan Automobile Co Ltd
Current assignee: Chongqing Changan Automobile Co Ltd
Priority date: 2011-02-22
Filing date: 2011-05-18
Publication date: 2011-11-23

Abstract

The invention discloses an automobile engine suspension. In the suspension, a suspension framework consists of a sleeve, and an upper support arm and a lower support arm which are connected with the outer wall of the sleeve; the upper support arm and the lower support arm are distributed in a splayed shape; a first mounting hole and a second mounting hole are formed on the end part of the upper support arm; a third mounting hole is formed on the end part of the lower support arm; the central line of the first mounting hole is parallel to the central line of the second mounting hole; the central line of the third mounting hole is vertical to the central lines of the first mounting hole and the second mounting hole; a central shaft is matched with the inner wall of an inner sleeve through a vulcanized rubber sleeve; and the outer wall of the inner sleeve is in interference fit with the inner wall of the sleeve of the suspension framework. In the invention, the upper and lower support arms are distributed in the splayed shape, and the upper support arm is locally provided with a reinforcing rib, so that the rigidity of the upper support arm is greatly improved; the lower support arm is locally provided with a shallow slot, so that the weight of the lower support arm is reduced; and an aluminum alloy material casting process and a one-time molding production method are used for manufacturing the suspension, so that the suspension meets the requirements of noise, vibration and harshness (NVH), and has high production speed.

Description

A kind of automotive engine suspends

Technical field

The present invention relates to automobile component, be specifically related to a kind of automotive engine and suspend.

Background technology

Suspension system plays important effect as the parts of driving engine and body contact for reducing the transmission of driving engine to operator's compartment internal vibration noise; The rigidity of the metallic framework part of suspension system is high more, just is not easy the exciting frequency resonance with driving engine more.Along with developing of automobile industry, on the one hand: people require more and more higher to the vibration of automobile, noise etc.; On the other hand: under the prerequisite that can satisfy performance requriements, each parts of car load all need carry out light-weight design.In addition, in mass production, require the productive temp of parts very fast.It is more that the vehicle that has adopts the panel beating class to suspend, and can make various labyrinths and suspend; But shortcoming is also apparent in view: owing to need anchor clamps location welding, cause anchor clamps more, operation is more, the weld corrosion that gets rusty easily simultaneously; In addition,, need the extra panel beating of welding, cause weight to increase, do not meet the car load lightweight requirements sometimes in order to satisfy higher rigidity requirement.

Summary of the invention

The purpose of this invention is to provide a kind of automotive engine suspends, its rigidity is higher, weight is lighter, can satisfy the abbreviation of NVH(Noise, Vibration, Harshness, the Chinese title is noise, vibration, smooth-going traveling comfort) needs, and the production efficiency height can adapt to the requirement of mass production beat.

A kind of automotive engine of the present invention suspends, and comprises the skeleton that suspends, and it is characterized in that: the described skeleton that suspends is made of a sleeve and the upper branch arm and the lower branch arm that are connected on its outer wall, and upper branch arm and lower branch arm are " eight " font and distribute; Be provided with first mounting hole and second mounting hole in the end of upper branch arm, be provided with the 3rd mounting hole in the end of lower branch arm; The line of centers of first mounting hole is parallel with the line of centers of second mounting hole, and the line of centers of the 3rd mounting hole is vertical with the line of centers of second mounting hole with the line of centers of first mounting hole; One mandrel cooperates with the inwall of inner sleeve by the polysulphide rubbers cover, and the inwall interference fit of the sleeve of the outer wall of inner sleeve and the skeleton that suspends is provided with the 4th mounting hole in the end of mandrel.

Described a kind of automotive engine suspends, and is respectively equipped with reinforced rib in the both sides of upper branch arm, is provided with a plurality of shallow slots at a sidewall of lower branch arm.To alleviate own wt, meet the requirement of car load weight-saving.

Described a kind of automotive engine suspends, and its described skeleton that suspends adopts aluminum alloy by the casting method moulding.

The present invention has following beneficial effect:

(1) suspends skeleton through topological optimization, adopt " eight " font structure, the line of centers of two mounting holes is vertical with another one mounting hole line of centers simultaneously, the mounting hole distance is far away in the space, fixed range is broad, improves a lot with respect to the rigidity of tradition welding part to whole suspension system;

(2) the local strengthening rib structure that adopts of the upper branch arm metallic framework that suspends has improved rigidity;

(3) the lower branch arm metallic framework that suspends is local to have reduced casting shrinking hole, shrinkage defect by grooving, has saved raw MAT'L simultaneously, has alleviated own wt, meets the requirement of car load weight-saving;

(4) adopt aluminum alloy materials foundry technique one-shot forming production method to make, satisfied the needs of NVH; Weld the corrosion phenomenon that the formula skeleton has reduced the solder joint place with respect to traditional panel beating, saved welding jig, need not welding sequence simultaneously, productive temp is fast.。

Description of drawings

Fig. 1 is the cooperation scheme drawing of each parts of the present invention;

Fig. 2 is a structural representation of the present invention;

Fig. 3 is the A-A cutaway view of Fig. 2;

Fig. 4 is the left view of Fig. 2;

Fig. 5 is the general assembly scheme drawing of the present invention and chassis welding support and change-speed box.

The specific embodiment

The present invention is further illustrated below in conjunction with accompanying drawing.

Suspend 2 referring to Fig. 1, Fig. 2, Fig. 3 and a kind of automotive engine shown in Figure 4, its skeleton 8 that suspends is made of a sleeve and the upper branch arm 14 and the lower branch arm 16 that are connected on this sleeve outer wall, and upper branch arm 14 and lower branch arm 16 are " eight " font and distribute; Be provided with first mounting hole 12 and second mounting hole 13 in the end of upper branch arm 14, be provided with the 3rd mounting hole 17 in the end of lower branch arm 16; The line of centers of first mounting hole 12 is parallel with the line of centers of second mounting hole 13, and the line of centers of the 3rd mounting hole 17 is vertical with the line of centers of second mounting hole 13 with the line of centers of first mounting hole 12; Be respectively equipped with reinforced rib 15 in the both sides of upper branch arm 14, be provided with a plurality of shallow slots 18 at a sidewall of lower branch arm 16; The skeleton 8 that suspends adopts aluminum alloy by the casting method moulding; One mandrel 11 cooperates with the inwall of inner sleeve 9 by polysulphide rubbers cover 10, and the inwall interference fit of the sleeve of the outer wall of inner sleeve 9 and the skeleton 8 that suspends is provided with the 4th mounting hole 19 in the end of mandrel 11.

When using referring to Fig. 5, originally the 4th mounting hole 19 of 2 mandrel 11 ends of suspending is connected with chassis welding support 1 by bolt 7, originally suspend 2 first mounting hole 12, second mounting hole 13 is connected with change-speed box 3 by bolt 4,5,6 respectively with the 3rd mounting hole 17, so that the supporting motive force assembly.

Claims

1. an automotive engine suspends, comprise the skeleton that suspends (8), it is characterized in that: the described skeleton that suspends (8) is made of a sleeve and the upper branch arm (14) and the lower branch arm (16) that are connected on its outer wall, and upper branch arm (14) and lower branch arm (16) are " eight " font and distribute; Be provided with first mounting hole (12) and second mounting hole (13) in the end of upper branch arm (14), be provided with the 3rd mounting hole (17) in the end of lower branch arm (16); The line of centers of first mounting hole (12) is parallel with the line of centers of second mounting hole (13), and the line of centers of the 3rd mounting hole (17) is vertical with the line of centers of second mounting hole (13) with the line of centers of first mounting hole (12); One mandrel (11) cooperates by the inwall of polysulphide rubbers cover (10) with inner sleeve (9), and the inwall interference fit of the sleeve of the outer wall of inner sleeve (9) and the skeleton (8) that suspends is provided with the 4th mounting hole (19) in the end of mandrel (11).

2. a kind of automotive engine according to claim 1 suspends, and it is characterized in that: be respectively equipped with reinforced rib (15) in the both sides of upper branch arm (14), be provided with a plurality of shallow slots (18) at a sidewall of lower branch arm (16).

3. a kind of automotive engine according to claim 1 and 2 suspends, and it is characterized in that: the described skeleton that suspends (8) adopts aluminum alloy by the casting method moulding.