Winding forming based preparation method of composite material plate spring body and plate spring body
A composite material sheet, winding forming technology, applied in elastic suspension, vehicle parts, transportation and packaging, etc., can solve the problem of high time cost and mold loss cost
Pending Publication Date: 2021-11-23
西安联瑞科技实业有限责任公司
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Problems solved by technology
The molding process can form components with complex structures, but because the molding process is one-time molding, the time cost of production and the cost of mold loss are too high
Method used
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[0050] The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.
[0051] The leaf spring can be placed vertically or horizontally on the car. The latter must be provided with an additional guiding force transmission device to transmit the longitudinal force, which makes the structure complex and the quality increased, so it is only used in a small number of light and miniature vehicles. Vertical leaf springs can transmit various forces and moments, have a guiding function, and have a simple structure, so they are widely used in automobiles.
[0052] figure 1 The installation diagram of the leaf spring assembly provided for this application.
[0053] Such as figure 1 As shown, the leaf spring assembly includes a leaf spring body 13, and the middle part of the leaf spring body 13 is provided with two U-shaped bolts 14, which are used to fix the leaf spring body 13 on the axle 15, and the leaf sp...
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Abstract
The invention provides a winding forming based preparation method of a composite material plate spring body and the plate spring body. The method comprises the steps that fibers penetrate through a solution formed based on a thermosetting resin material or a thermoplastic resin material so as to obtain fibers soaked through the solution; the fibers soaked through the solution are wound in winding space matched with the size of a plate spring in a mold so as to form a preformed plate spring; in the winding process, after at least one layer of fibers is wound every time, a layer of fiber felt is laid on the surface of the at least one layer of fibers, and the two ends of a fiber section in the layer of fiber felt are embedded into the at least one layer of fibers in an arch form through needle heads with barbs; and the preformed plate spring is cured, and the composite material plate spring body is obtained. According to the method, the plate spring meeting the performance requirement can be produced on the basis of controlling the time cost and the mold loss cost.
Description
technical field [0001] The invention relates to a suspension for automobiles, more specifically, to a method for preparing a composite leaf spring body based on winding molding and the leaf spring body for automobiles. Background technique [0002] With the increasing consumption of global fossil energy and people's increasing attention to environmental issues, the innovation speed of new materials and new technologies in the automotive industry is also increasing day by day. The lightweight of automobiles can not only greatly reduce people's consumption of fossil energy, but also increase the cargo capacity of automobiles and increase the efficiency of automobile use. In addition to the characteristics of light weight and high strength, composite materials also have good shock absorption and fatigue life. Therefore, composite materials have been widely used in the automotive field. [0003] Composite materials, as leaf spring materials for automobiles, have been extensivel...
Claims
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IPC IPC(8): B29C70/30B29C70/54B60G11/02B60G11/113
CPCB29C70/30B29C70/54B60G11/02B60G11/113B60G2206/81B60G2206/71
Inventor 董轩诚
Owner 西安联瑞科技实业有限责任公司