Helicopter wheel undercarriage sled

A landing gear, helicopter technology, applied in the direction of sleds/skis, etc., can solve problems such as restrictions, and achieve the effect of increasing the ground contact area

Inactive Publication Date: 2015-06-24
HARBIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when the helicopter needs to be used in snowy areas, it is very limited

Method used

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  • Helicopter wheel undercarriage sled
  • Helicopter wheel undercarriage sled
  • Helicopter wheel undercarriage sled

Examples

Experimental program
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Embodiment Construction

[0009] A helicopter wheeled landing gear sled, such as figure 1 , 2 , 3, including skid plate 4, bushing 7, threaded shaft 8, rubber buffer rope 9, wherein, skid plate 4 is installed on the axle of landing gear through bushing 7, threaded shaft 8, and can rotate freely, 4 One end of root rubber buffer rope 9 is connected on the joint 5 of skid plate 4, and the other end is connected on the joint of fuselage, and liner 6 is pre-embedded on skid plate 4.

[0010] The reaction point of the snow on the sled basically passes through the installation shaft. On the wheel shaft of the landing gear there is a screw thread matched with the threaded shaft 8, the sledge is hinged to the wheel shaft by the threaded shaft 8, and before the buffer rope 9 is connected, the sledge rotates unconstrained. The front and rear joints of the sled 4 are respectively connected to the joints on the fuselage by two rubber buffer ropes. When the helicopter is flying, the sled can maintain a certain ang...

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Abstract

The invention relates to the field of helicopter design, and provides a helicopter wheeled undercarriage sled, including a skid plate, a bushing, a threaded shaft and rubber buffer ropes, the skid plate is arranged at the position of an undercarriage wheel shaft by the bushing and the threaded shaft, and can freely rotate, one ends of the four rubber buffer ropes are connected with a connector of the skid plate, and the other ends are connected to a connector of the fuselage, and the skid plate is pre embedded with the bushing. Before the installation of the sled, the helicopter main wheel ground contact area is smaller; after the installation of the sled, the ground contact area is increased, so that the helicopter can take off and land on soft snow land without sinking down.

Description

technical field [0001] The invention relates to the field of helicopter design, in particular to a sled for a helicopter wheeled landing gear. Background technique [0002] The helicopters currently in service in China have no record of using ski lifts. Therefore, when the helicopter needs to be used in snow-covered areas, it is very limited. Contents of the invention [0003] The technical problem to be solved by the present invention is to design a helicopter wheeled landing gear sled which is easy to install and disassemble, and can be used for taking off and landing on paved runways and snow-covered ground. [0004] The technical scheme of the present invention: a skid for a helicopter wheeled landing gear, including a skid plate, a bush, a threaded shaft, and a rubber buffer rope, wherein the skid plate is installed on the wheel shaft of the landing gear through the bushing and the threaded shaft, and can be Free rotation, one end of four rubber buffer ropes is conn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C25/52
Inventor 宋宪龙
Owner HARBIN
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