Search

CN-121990191-A - Unfolding testing device under thermal vacuum environment

CN121990191ACN 121990191 ACN121990191 ACN 121990191ACN-121990191-A

Abstract

The invention relates to the technical field of aerospace, in particular to a unfolding testing device in a thermal vacuum environment, which comprises a supporting mechanism, a sliding mechanism and a compression release mechanism, wherein the supporting mechanism is arranged on a fixed surface, the sliding mechanism is arranged on the upper surface of the supporting mechanism, a lifting mechanism is arranged at one end of the supporting mechanism and is connected with the sliding mechanism, the sliding mechanism is used for guiding the lifting mechanism when being unfolded, the compression release mechanism is at least provided with one compression release mechanism and is arranged on the supporting mechanism and is communicated with a power supply, and the compression release mechanism is used for compressing the lifting mechanism in the initial stage and releases the lifting mechanism after being electrified. The unfolding testing device in the thermal vacuum environment provided by the invention obviously improves the accuracy and reliability of the testing result, and provides a powerful guarantee for the effectiveness of on-orbit unfolding of the solar wing.

Inventors

  • ZHANG DEJUN
  • GUO JIANYU
  • YUAN ZIXIN
  • MA MEI
  • DONG LIQING
  • CHEN GAOLEI
  • Miao shanshan

Assignees

  • 东升宇航(北京)科技有限公司

Dates

Publication Date
20260508
Application Date
20260227

Claims (10)

  1. 1. The unfolding testing device under the thermal vacuum environment is used for testing a lifting mechanism (100) of a solar wing and is characterized by comprising a supporting mechanism (200), a sliding mechanism (300) and a compression release mechanism (400); The supporting mechanism (200) is placed on a fixed surface, the sliding mechanism (300) is arranged on the upper surface of the supporting mechanism (200), the lifting mechanism (100) is arranged at one end of the supporting mechanism (200) and is connected with the sliding mechanism (300), and the sliding mechanism (300) is used for guiding the lifting mechanism (100) when being unfolded; The compression release mechanism (400) is at least provided with one and is arranged on the supporting mechanism (200) and is communicated with a power supply, and the compression release mechanism (400) is used for compressing the lifting mechanism (100) in the initial stage, and the compression release mechanism (400) releases the lifting mechanism (100) after the lifting mechanism (100) is electrified.
  2. 2. The unfolding testing device under a thermal vacuum environment according to claim 1, characterized in that the supporting mechanism (200) comprises a base (201) and a fixing plate (202) which are arranged vertically to each other, and the compression release mechanism (400) comprises a force bearing cylinder (401), a memory metal cylinder (402) and a torsion spring (403); the sliding mechanism (300) is arranged on the upper surface of the base (201), and one end of the lifting mechanism (100) along the self-unfolding direction is fixedly arranged on the side wall of the fixed plate (202); One end of the bearing cylinder (401) is fixedly arranged on the side wall of the fixed plate (202), the axis of the bearing cylinder (401) is parallel to the unfolding direction of the lifting mechanism (100), the other end of the bearing cylinder (401) is connected with the memory metal cylinder (402), a first hinge plate (404) is arranged on the side wall of the bearing cylinder (401), a second hinge plate (405) is arranged at the bottom of the memory metal cylinder (402), the first hinge plate (404) and the second hinge plate (405) are hinged through a pin shaft (406), and the torsion spring (403) is sleeved on the outer side of the pin shaft (406); the memory metal cylinder (402) is communicated with the power supply through a lead-out wire (407), and initially, one end of the second hinge plate (405) deviating from the first hinge plate (404) is attached to the outer wall surface of the lifting mechanism (100), after the memory metal cylinder (402) is electrified, the memory metal cylinder (402) is disconnected with the bearing cylinder (401), the torsion spring (403) drives the second hinge plate (405) to overturn, and the second hinge plate (405) releases the lifting mechanism (100).
  3. 3. The thermal vacuum environment deployment test apparatus as defined in claim 2, wherein the compression release mechanism (400) further comprises a locking screw (408) and a grooving bolt (409), the grooving bolt (409) being located in the memory metal cylinder (402) and having one end passing through the second hinge plate (405), one end of the locking screw (408) passing through the fixing plate (202) and the force-bearing cylinder (401) and then being connected to the grooving bolt (409); The diameter of the end face of the grooving bolt (409) at the joint of the memory metal cylinder (402) and the bearing cylinder (401) is smaller than that of the other parts.
  4. 4. The thermal vacuum environment unfolding testing device according to claim 2, wherein the supporting mechanism (200) comprises a vertical beam (203), the vertical beam (203) is vertically arranged at one end of the base (201), and the fixing plate (202) is fixedly arranged on one surface of the vertical beam (203) facing the base (201).
  5. 5. The thermal vacuum environment deployment test device of claim 4, wherein the base (201) comprises a support beam (204) and a connection beam (205); At least two supporting beams (204) are distributed at intervals and are parallel to each other, a plurality of connecting beams (205) are arranged between two adjacent supporting beams (204), the connecting beams (205) are distributed at intervals along the extending direction of the supporting beams (204), and the connecting beams (205) are fixed with the supporting beams (204) and the vertical beams (203) and the supporting beams (204) through angle steels (206).
  6. 6. The thermal vacuum environment unfolding testing device according to claim 4, wherein the fixing plate (202) is provided with two positioning grooves (207), the positioning grooves (207) extend along the length direction of the vertical beams (203), nuts are arranged on the vertical beams (203), and fixing bolts penetrate through the positioning grooves (207) and are in threaded connection with the nuts to fix the fixing plate (202) and the vertical beams (203).
  7. 7. The thermal vacuum environment deployment test device of claim 5, wherein the sliding mechanism (300) comprises a slide rail (301) and a sled (302); The sliding rail (301) is arranged on the upper surface of the supporting beam (204) along the extending direction of the supporting beam, the sliding plate (302) is arranged above the sliding rail (301), the sliding plate (302) can move along the extending direction of the sliding rail (301), and one end, deviating from the fixed plate (202), of the lifting mechanism (100) is fixedly arranged on the upper surface of the sliding plate (302).
  8. 8. The thermal vacuum environment deployment test apparatus as defined in claim 7, wherein the sliding mechanism (300) further comprises a slider (303), the slider (303) is disposed at the bottom of the sliding plate (302), and the slider (303) is slidably connected with the sliding rail (301) to drive the sliding plate (302) to move along the extending direction of the sliding rail (301).
  9. 9. The device according to claim 2, wherein the fixing plate (202) is provided with a connecting concave hole (208), and the end of the lifting mechanism (100) is provided with a flange plate, and the flange plate is fixedly connected with the connecting concave hole (208) through a countersunk bolt.
  10. 10. The thermal vacuum environment deployment test device of any one of claims 1-9, further comprising a thermal vacuum tank, wherein the support mechanism (200), the slide mechanism (300), the compression release mechanism (400), and the lifting mechanism (100) are all located within the thermal vacuum tank.

Description

Unfolding testing device under thermal vacuum environment Technical Field The invention relates to the technical field of aerospace, in particular to a unfolding testing device under a thermal vacuum environment. Background Solar wings are devices that collect solar energy and power satellite vehicles, i.e., the source of energy for satellite vehicles is primarily supplied by the sun. Therefore, whether the solar wing can be deployed and locked simultaneously while in orbit is extremely important to the efficient operation of the satellite spacecraft. The lifting mechanism type solar wing is partially unfolded in place, at present, the existing lifting mechanism is hung by using a truss matching rope, then unfolded, whether the unfolding direction of the lifting mechanism is in the preset straight line direction or not cannot be guaranteed due to the fact that the truss hanging mode is used for testing, and the unfolding speed, the unfolding stability and the like cannot be guaranteed, the result obtained by verification is inaccurate, and the reliability of the follow-up use of the solar wing cannot be effectively guaranteed. Disclosure of Invention The invention solves the technical problems that the existing lifting mechanism for the solar wing is tested in a truss hanging mode, whether the unfolding direction of the lifting mechanism is in the preset straight line direction or not cannot be guaranteed, the unfolding speed, the unfolding stability and the like cannot be guaranteed, the obtained result of verification is inaccurate, and the reliability of the subsequent use of the solar wing cannot be effectively guaranteed. (II) technical scheme In order to solve the technical problems, the embodiment of the invention provides a unfolding testing device under a thermal vacuum environment, which is used for testing a lifting mechanism of a solar wing and comprises a supporting mechanism, a sliding mechanism and a compression release mechanism; The supporting mechanism is arranged on the fixed surface, the sliding mechanism is arranged on the upper surface of the supporting mechanism, the lifting mechanism is arranged at one end of the supporting mechanism and is connected with the sliding mechanism, and the sliding mechanism is used for guiding the lifting mechanism when being unfolded; the compressing and releasing mechanism is at least provided with one and is arranged on the supporting mechanism and is communicated with the power supply, and the compressing and releasing mechanism is used for compressing the lifting mechanism in the initial stage and releasing the lifting mechanism after being electrified. Further, the supporting mechanism comprises a base and a fixed plate which are arranged vertically, and the compression release mechanism comprises a bearing cylinder, a memory metal cylinder and a torsion spring; The sliding mechanism is arranged on the upper surface of the base, and one end of the lifting mechanism along the self-unfolding direction is fixedly arranged on the side wall of the fixed plate; One end of the bearing cylinder is fixedly arranged on the side wall of the fixed plate, the axis of the bearing cylinder is parallel to the unfolding direction of the lifting mechanism, the other end of the bearing cylinder is connected with the memory metal cylinder, a first hinge plate is arranged on the side wall of the bearing cylinder, a second hinge plate is arranged at the bottom of the memory metal cylinder, the first hinge plate and the second hinge plate are hinged through a pin shaft, and the torsion spring is sleeved on the outer side of the pin shaft; The memory metal cylinder is communicated with the power supply through a lead-out wire, one end of the second hinge plate, which is away from the first hinge plate, is attached to the outer wall surface of the lifting mechanism, after the memory metal cylinder is electrified, the memory metal cylinder is disconnected with the bearing cylinder, the torsion spring drives the second hinge plate to overturn, and the second hinge plate releases the lifting mechanism. Further, the compression release mechanism further comprises a locking screw and a grooving bolt, wherein the grooving bolt is positioned in the memory metal cylinder, one end of the grooving bolt penetrates through the second hinge plate, and one end of the locking screw penetrates through the fixing plate and the bearing cylinder and then is connected with the grooving bolt; the diameter of the end face of the grooving bolt, which is positioned at the joint of the memory metal cylinder and the bearing cylinder, is smaller than that of the other parts. Further, the supporting mechanism comprises a vertical beam, the vertical beam is vertically arranged at one end of the base, and the fixing plate is fixedly arranged on one surface of the vertical beam, which faces the base. Further, the base comprises a support beam and a connecting beam; At least two supporting beams are dist