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Recoverable rocket leg type buffering device with time-share series triggering function

A buffer and leg-type technology, applied in the aerospace field, can solve the problems of large load fluctuation, low energy absorption efficiency, and inability to apply to rocket soft landing, and achieve the effect of improving buffer energy absorption performance and meeting vertical recovery requirements.

Active Publication Date: 2019-04-16
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention solves the problem that the existing landing buffers are generally made of aluminum honeycomb single material, which has low energy absorption efficiency and large load fluctuations, and cannot be applied to rocket soft landings in harsh environments.

Method used

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  • Recoverable rocket leg type buffering device with time-share series triggering function
  • Recoverable rocket leg type buffering device with time-share series triggering function
  • Recoverable rocket leg type buffering device with time-share series triggering function

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specific Embodiment approach 1

[0022] Specific implementation mode one: combine Figure 1 to Figure 5 Description of this embodiment, a recoverable rocket leg buffer with time-sharing serial trigger function, it includes a primary buffer structure, it also includes a secondary buffer structure, the primary buffer structure includes a piston push rod 1, an end cover 2. Cylindrical piston 3, isolation circular tube 10, metal honeycomb A11, base 9 and buffer housing 14; The tube 10 is inserted on the base 9 in the buffer shell 14, the metal honeycomb A11 is filled in the isolation circular tube 10, the cylindrical piston 3 can be slidably installed in the isolation circular tube 10 and offset against the metal honeycomb A11, the piston push rod 1 One end extends into the isolation circular tube 10 and is connected with the cylindrical piston 3 as a whole, and the end cover 2 is installed on the upper end of the buffer shell 14; the secondary buffer structure includes a locking assembly, a metal honeycomb B12 a...

specific Embodiment approach 2

[0033] Specific implementation mode two: combination Figure 1 to Figure 3 This embodiment will be described. A transmission boss 4 is processed on the cylindrical piston 3 of this embodiment. Such an arrangement is convenient for providing an installation position for the locking component, and in addition, it can also realize the transition between the first-level buffer and the second-level buffer. Other compositions and connections are the same as in the first embodiment.

[0034] The transmission boss 4 in this embodiment has a solid cuboid structure, and is fixedly connected to the left and right sides of the cylindrical piston 3 .

specific Embodiment approach 3

[0035] Specific implementation mode three: combination Figure 1 to Figure 3 Describe this embodiment, the locking assembly of this embodiment includes buffer piston 8, spring 7, pin shaft 6 and trapezoidal pin 5, and the middle part of trapezoidal pin 5 is provided with square through hole 5-1, and the upper end of trapezoidal pin 5 and transmission convex The table 4 is connected, the buffer piston 8 is set on the metal honeycomb B12, the pin shaft 6 is installed on the buffer piston 8 to move left and right in the longitudinal direction, the spring 7 is installed on the buffer piston 8 and is fixedly connected with the pin shaft 6, and the cylindrical piston 3 drives When the trapezoidal pin 5 moves upward, the trapezoidal pin 5 is inserted into the buffer piston 8 and locked by the pin shaft 6 . With such an arrangement, the structure is simple, and it is convenient to quickly realize the docking transition between the first-level buffer and the second-level buffer. Other...

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Abstract

The invention provides a recoverable rocket leg type buffering device with a time-share series triggering function, relates to a recoverable rocket leg type buffering device, and aims at solving the problems that an existing landing buffering device is normally composed of aluminum honeycomb single material, the energy absorbing efficiency is low, the load fluctuation is large, and existing landing buffering device cannot adapt to rocket soft landing in a severe environment. The buffering device is characterized in that a base is clamped at the bottom of the housing of a buffering device, an isolation circular pipe is inserted on the base in the housing of the buffering device, a metal honeycomb A fills the isolation circular pipe, a cylindrical piston can be slidably installed in the isolation circular pipe, one end of a piston push rod extends into the isolation circular pipe, and the upper end of the housing of the buffering device is covered with an end cap; a buffering metal pipesleeves the isolation circular pipe, the diameter of the buffering metal pipe is gradually increased in the direction from the base to the end cover direction, a metal honeycomb B is installed in a cavity between the outer wall of the isolation circular pipe and the inner wall of the buffering metal pipe, and locking assemblies are installed on the metal honeycomb B and the cylindrical piston respectively. The buffering device is applied to the technical field of aerospace.

Description

technical field [0001] The invention relates to a recoverable rocket-leg buffer, in particular to a recoverable rocket-leg buffer with a time-sharing serial trigger function, belonging to the aerospace field. Background technique [0002] Recoverable rockets achieve soft landing through the landing buffer mechanism, and realize the reuse of the rocket through simple maintenance, which can save a lot of launch costs, and the landing buffer device is a key component to ensure the smooth and safe landing of the rocket and realize recovery. Due to the unstable state of the rocket during the landing process, sometimes there will be a bad landing state, that is, a more stable soft landing is needed to meet the smooth landing of the rocket, otherwise it is easy to cause bad situations such as rocket crashes. However, the existing landing buffers are generally made of a single material of aluminum honeycomb, which has low energy absorption efficiency and large load fluctuations, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64G1/62
CPCB64G1/62
Inventor 高海波于海涛闫振刘振丁亮李楠邓宗全
Owner HARBIN INST OF TECH
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