Shaft mounted brake disk of SiC granule enhanced aluminium based composite material

A particle-reinforced aluminum and composite material technology, applied in the direction of brake discs, brake types, brake components, etc., can solve the problems of weakened heat dissipation effect and large wind resistance loss, etc., to eliminate internal casting defects, increase wind resistance loss, and improve ventilation. The effect of heat dissipation

Inactive Publication Date: 2006-06-14
BEIJING JIAOTONG UNIV
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Problems solved by technology

[0003] Some literature shows that when the speed of the train is lower than 160km / h, the heat dissipation ribs of the steel brake discs currently adopt a plate structure to enhance the ventilation and heat dissipation effect, but this structure has the disadvantage of large wind resistance loss; when the train speed is high At 200km / h, the heat dissipation ribs mostly adopt a columnar structure to reduce wind resistance loss, but at the same time the heat dissipation effect is weakened

Method used

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  • Shaft mounted brake disk of SiC granule enhanced aluminium based composite material
  • Shaft mounted brake disk of SiC granule enhanced aluminium based composite material
  • Shaft mounted brake disk of SiC granule enhanced aluminium based composite material

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Embodiment Construction

[0019] The present invention will be further described in conjunction with accompanying drawing:

[0020] A shaft-mounted SiC particle reinforced aluminum matrix composite brake disc Figure 1 , including the upper and lower friction disc surfaces 1, 2, heat dissipation ribs 3, 4, 5, 6, 7, 8 and flange 9.

[0021] The thickness of the upper and lower friction discs 1 and 2 is 32mm, the outer diameter is Φ640mm, and the inner diameter is Φ334mm;

[0022] There are 6 types of cooling ribs, T-shaped cooling ribs 3, columnar cooling ribs 4, columnar cooling ribs 5, plate-shaped cooling ribs 6, plate-shaped cooling ribs 7 and arc-shaped cooling ribs 8, all of which are 46mm in height:

[0023] Five T-shaped cooling ribs 3 are evenly distributed on the outer ring of the brake disc. The central symmetry line of the T-shaped cooling ribs 3 is radially distributed, and the centroid of the section is located on a circle of Φ600mm. The cross-sectional profile of the T-shaped cooling rib...

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Abstract

The invention consists of upper and lower friction disks, cooling fins and a flange. The cooling fins have six shapes. Five T-shaped cooling columns are uniformly distributed on the circle phi 600 mm of the friction disk and between two T-shaped cooling columns are uniformly distributed five cylindrical cooling fins. Ten plate cooling fins located on the circle phi 420 mm is divided into five groups with two fins each distributed uniformly along circumference and twenty plate cooling fins located on the circle phi 454 mm is divided into five groups with four fins each distributed uniformly along circumference. Five arc cooling fins are uniformly distributed along the inner ring of the friction disk. The flange of the brake disk is connected with the arc cooling column.

Description

technical field [0001] The invention relates to a shaft-mounted aluminum-based composite material brake disc, which is suitable for 200km / h high-speed trains. technical background [0002] Disc brake is one of the important braking methods of trains. The development of high-speed trains puts forward higher requirements for the material quality, life and safety and reliability of brake discs. At present, the large-scale use of brake discs is made of steel materials, which have the inherent disadvantages of high density and poor thermal conductivity, resulting in large thermal stress and high temperature rise during the braking process of the brake disc, and hot spots are prone to occur on the disc surface. ; The brake disc made of vermicular iron material, alloy cast iron or vermicular iron material is very noisy during braking. At present, in order to overcome the above-mentioned shortcomings, Japan, France, Germany, the United Kingdom, and the United States are all develop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D65/847F16D65/12
Inventor 韩建民杨智勇谢基龙李卫京王文静吴召玲沙镇嵩陈怀君徐向阳李荣华刘元富王金华
Owner BEIJING JIAOTONG UNIV
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