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Carbon-fibre composite boom for concrete pump truck

A technology for concrete pump trucks and composite materials, which is applied in the processing of building materials, construction, and building construction. It can solve problems such as heavy weight, poor mobility, and corrosion, and achieve high specific modulus, superior performance, and high specific strength. Effect

Inactive Publication Date: 2012-05-16
WEIHAI GUANGWEI COMPOSITES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the boom frame of the pump truck is mostly made of high-strength steel, which is heavy, has high requirements on the frame and chassis, high fuel consumption, and poor maneuverability; at the same time, the working condition of the pump truck is always under the action of dynamic load. There is still a coupling effect between the components of the frame structure, which is prone to local deformation and cracking due to fatigue damage; in addition, the working environment of the pump truck is relatively harsh, and corrosion problems are prone to occur

Method used

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  • Carbon-fibre composite boom for concrete pump truck
  • Carbon-fibre composite boom for concrete pump truck
  • Carbon-fibre composite boom for concrete pump truck

Examples

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Embodiment

[0015] Such as figure 1 , figure 2 As shown, the present invention is provided with a main body box girder 4, the inner layer of the main body box girder 4 is covered with a carbon fiber cloth prepreg 3 at an angle of 90°, and the middle layer of the main body box girder 4 is covered with ±45° angle carbon fiber Cloth prepreg 2, the outer layer of the main box beam 4 is covered with carbon fiber cloth prepreg 1 at an angle of 0°, the root of the main box beam 4 is provided with a splint 5 connected as a whole, and the splint 5 has pins on it Holes, pin holes are inlaid with wear-resistant metal bushings 6, the inside of the metal bushing 6 is a circular hole, and the outside is a square or a regular hexagon or a regular octagon. The manufacturing process of this embodiment is as follows: firstly pave the mandrel with a 90° angle carbon fiber cloth prepreg, or wrap a 0° angle carbon fiber cloth prepreg with a smaller width on the mandrel at a smaller pitch, Lay to the requir...

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Abstract

The invention relates to a carbon-fibre composite boom for a concrete pump truck, belonging to the field of composites. A main body box girder is arranged, wherein a 90-degree angled carbon fiber cloth pre-impregnation material is laid on the inner layer of the main body box girder, and a 45-degree angled carbon fiber cloth pre-impregnation material is laid on the middle layer of the main body box girder, and a 0-degree angled carbon fiber cloth pre-impregnation material is laid on the outer layer of the main body box girder; the root of the main body box girder is provided with a plywood connected in an integrated way. The beneficial effects of the invention are as follows: the carbon-fibre composite boom gives full play of the higher specific strength, bigger specific modulus, fatigue resistance and corrosion resistance of the carbon-fibre reinforced epoxy resin composite so as to obtain a boom of a pump truck with excellent performances and reduce weight of the boom by 40-60%. At the same time, the carbon-fibre composite boom can also be applied in fields like fire engine booms, lifting arms of lifting appliances and power transmission and communication poles.

Description

technical field [0001] The invention relates to the field of composite materials, in particular to a carbon fiber composite arm frame for a concrete pump truck. Background technique [0002] As we all know, the boom is one of the most important key components of the concrete pump truck, and its safety, reliability and advancement are the keys to determine the core competitiveness of the pump truck. At present, the boom frame of the pump truck is mostly made of high-strength steel, which is heavy, has high requirements on the frame and chassis, high fuel consumption, and poor maneuverability; at the same time, the working condition of the pump truck is always under dynamic load. There is still a coupling effect between the components of the frame structure, which is prone to local deformation and cracking due to fatigue damage; in addition, the working environment of the pump truck is relatively harsh, and corrosion problems are prone to occur. Contents of the invention ...

Claims

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Application Information

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IPC IPC(8): E04G21/02
CPCE04G21/0445E04G21/0436
Inventor 王朝辉段成金夏向欣
Owner WEIHAI GUANGWEI COMPOSITES
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