A bushing for an automobile engine suspension cushion assembly
A technology for automobile engines and suspension cushions, which is applied in power units, vehicle components, jet propulsion units, etc., can solve the problem that vehicle NVH performance and product reliability cannot be taken into account at the same time, so as to improve NVH performance and ensure product reliability. The effect of high durability and fatigue reliability
Active Publication Date: 2016-08-24
CHONGQING CHANGAN AUTOMOBILE CO LTD
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Problems solved by technology
However, with the continuous development of the automobile industry and the increasing individual needs of consumers, people have higher and higher requirements for vehicle NVH performance and product reliability. There is a problem that the vehicle NVH performance and product reliability cannot be taken into account at the same time
Method used
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[0015] The present invention will be further explained below in conjunction with the drawings.
[0016] Such as Figure 2~Figure 5 As shown, the bushing of an automobile engine suspension cushion assembly includes an outer sleeve, an inner sleeve 7 arranged in the center of the outer sleeve, and a vulcanized vibration isolation between the inner sleeve and the outer sleeve The rubber layer 6. The outer sleeve is a composite structure, which is composed of a rigid outer tube 4 and an elastic inner tube 5 that are welded together; two symmetrical rectangular holes 41 are provided on the rigid outer tube, and the height of the rectangular holes is greater than that of the elastic The height of the inner tube, and the upper and lower ends of the elastic inner tube have gaps 8 with the upper and lower sides of the rectangular hole respectively.
[0017] The vibration isolation rubber layer 6 is divided into a deforming part 61 and two limiting parts 62 along the axial direction. There...
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The invention relates to a bushing of a vehicle engine suspended cushion assembly. The bushing comprises an outer tube, an inner tube arranged in the center of the outer tube and a vibration isolation rubber layer vulcanized between the outer tube and the inner tube. The bushing is characterized in that the outer tube is in a composite structure and is composed of a rigid outer tube unit and an elastic inner tube unit in fitted and welded manners; the rigid outer tube unit is provided with two transversely-symmetric rectangular holes, the height of the rectangular holes is larger than that of the elastic inner tube unit, and gaps are formed between the upper and lower ends of the elastic inner tube unit and the upper and lower edges of the rectangular holes respectively. The fine vibration isolation effect can be achieved, the entire vehicle NVH performance can be optimized, and the reliability can be guaranteed.
Description
Technical field [0001] The invention relates to a component of an automobile engine suspension cushion assembly, in particular to a bushing of an automobile engine suspension cushion assembly. Background technique [0002] At present, the rubber bushing of automobile engine suspension mostly adopts single-stage vibration isolation structure, such as figure 1 As shown, the existing bushing is composed of the original outer tube 1, the original inner tube 2, and the original vibration isolation rubber pad 3 vulcanized between the original outer tube and the original inner casing. When the vibration of the automobile powertrain or body is transmitted to the lining When it is put on, the inner sleeve and outer tube of the bushing do not deform, but the vibration-isolating rubber between the inner sleeve and the outer tube is deformed to play a role of flexible support and vibration isolation. This type of traditional single-stage vibration isolation structure rubber bushing is widely...
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IPC IPC(8): B60K5/12
Inventor 熊维林冯光仪彭红闵龙
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD