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Rubber-plastic composite bush

A bushing, rubber-plastic technology, used in springs, bearing elements, springs/shock absorbers, etc. made of plastic materials, can solve the problem of large torque and wear, uneven stress on the rubber layer, and poor shock absorption performance and other problems, to achieve the effect of small friction coefficient, light weight and low wear

Active Publication Date: 2009-07-08
DONGFENG MOTOR CORP HUBEI
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the existing defects and deficiencies of the rubber layer of the bushing, such as uneven stress, large torsion and wear, poor damping performance, and short service life, and propose a bushing that is uniform in stress and wear, and has a shock-absorbing effect. Better, long-life rubber-plastic composite bushing

Method used

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  • Rubber-plastic composite bush
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Embodiment Construction

[0026] The present invention will be described in further detail below in conjunction with accompanying drawing description and specific embodiment:

[0027] see figure 1 , a rubber-plastic composite bushing, including a rubber sleeve body 1 and a steel sleeve 2, the rubber sleeve body 1 is fixed on the outer cylindrical surface of the steel sleeve 2, and a plastic bushing 5 is fixed in the inner hole of the steel sleeve 2. The rubber sleeve body 1 is vulcanized and bonded on the outer layer of the steel sleeve 2, that is, the surface of the outer cylinder, to form a rubber bushing. The plastic bushing 5 is pressed into the inner hole of the steel bushing 2 with a certain amount of interference to form a rubber-plastic composite bushing assembly. Install the metal shaft pin 4 that cooperates with it in the plastic bushing 5 inner holes then.

[0028] see figure 1 , Figure 6 , the outer cylindrical surface of the middle part of the rubber sleeve 1 is provided with at least...

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Abstract

A rubber-plastic composite bush, which belongs to a shock absorbing device or a sliding bearing used for connecting auto parts, the rubber bushing body (1) is fixed on the outer cylindrical surface of the steel bushing (2), and the inner hole of the steel bushing (2) A plastic bushing (5) is fixed in it. At least one ring-shaped groove (6) is arranged on the outer cylindrical surface of the middle part of the rubber sleeve (1), and conical chamfers (7) are formed on both ends of the rubber sleeve (1). Favorable interference fit and variable stiffness design. It overcomes the "accumulation" of the rubber layer of the bushing, "axial retraction" and "insufficient press fit", as well as the deviation, inclination, and partial wear of the bushing. The plastic bushing (5) is made of oil-containing nylon or polyoxymethylene material, which is suitable for heavy-duty working conditions. It has the characteristics of low wear, light weight, corrosion resistance, simple manufacture, small friction coefficient, stable performance, etc., and good sealing performance. Maintenance free.

Description

technical field [0001] The invention relates to a damping device used for connecting automobile parts, and also relates to a sliding bearing. Specifically, it relates to a rubber-plastic composite bushing. Background technique [0002] Harsh operating conditions shorten the service life of the major assemblies of the car, and the use of flexible connections between the assemblies can control the transmission of vibrations and reduce the excitation force of the seismic source. to ease the situation. Rubber bushings are often used in the flexible connection between automobile assemblies and rod systems. There are three types of structure: one is pure rubber bushing, which is used when the load is small, and the cost is low; the other is bonding metal inner cylinder type. The rubber bushing is used when the load is moderate, and the cost is moderate; but these two bushings avoid the phenomenon of "axial retraction" and "not pressing in place" of the rubber layer during use. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F1/38F16C33/22
Inventor 陈谦刘伟杨丹上官岳
Owner DONGFENG MOTOR CORP HUBEI
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