Undercarriage strut shrinking mechanism

Abstract

The invention relates to an undercarriage strut shrinking mechanism. The undercarriage strut shrinking mechanism comprises a shrinking actuator cylinder, an oil liquid compensator and an undercarriage; the shrinking actuator cylinder provides the oil liquid required by the undercarriage for shrinkage, the oil liquid compensator provides the oil liquid supplementary when the undercarriage 1 is in landing impact on the ground; the shrinking actuator cylinder, the oil liquid compensator and the undercarriage are communicated through a hydraulic pipe, wherein the hydraulic pipe is a tee conduit respectively connected with an oil nozzle, a compensation oil inlet nozzle and a shrinking cavity. Compared with the existing undercarriage, the strut length is shortened after the undercarriage disclosed by the invention is folded, the occupied undercarriage compartment space is small, the tolerance of an equipment compartment and a missile compartment of the airplane can be effectively improved, and the fighting capacity of the airplane is improved. Compared with the prior art, the undercarriage shrinking mechanism is provided with an automatic shrinking locking structure, the undercarriage can be reliably locked at the shrinking location under the hydraulic is invalid, the automatic elongation is avoided, the undercarriage and airplane structure cannot be damaged. The undercarriage strutshrinking mechanism disclosed by the invention is simple in structure, less in occupancy of the shrinking mechanism, and light in weight.

Description

technical field [0001] The invention belongs to the structural design technology, and relates to a shrinking mechanism of a landing gear strut. Background technique [0002] Compared with conventional land-based aircraft, the landing gear of carrier-based aircraft has the biggest difference because the landing speed of the aircraft is twice as high as that of land-based aircraft, and the energy is nearly four times greater. It is much longer. If the landing gear strut buffer does not adopt shrinking technology, the landing gear compartment will occupy a large space when the landing gear is retracted. This will inevitably affect the overall layout of the aircraft, such as occupying space for weapons or important equipment compartments. [0003] The existing carrier-based aircraft landing gear strut retraction technology is commonly used to shrink the connecting rod mechanism. This form takes up a lot of space, the structure and mechanism are complicated, and more weight will ...

AI Technical Summary

Problems solved by technology

[0002] Compared with conventional land-based aircraft, the landing gear of carrier-based aircraft has the biggest difference because the landing speed of the aircraft is twice as high as that of land-based aircraft, and the energy is nearly four times larger, so the stroke of the landing gear buffer of carrier-based aircraft is longer It is much longer. If the landing gear strut buffer does not adopt shrinking technology, the landing gear compartment will occupy a large space when the landing gear is retracted, which will inevitably affect the overall layout of the aircraft, such as occupying space for weapons or important equipment compartments.

[0003] The existing carrier-based aircraft landing gear strut shrinkage technology is commonly used to shrink the connecting rod mechanism. This form takes up a lot of space, the structure and mechanism are complicated, and it will increase a lot of weight

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