A follow-up gravity balance device
A technology of gravity balance and counterweight chain, which is applied to the simulation device of space navigation conditions, transportation and packaging, space navigation equipment, etc., which can solve the problems of complex structure of the balance system, high manufacturing cost, and large space requirements, and achieve operability Strong performance, simple structural composition, and small space occupation
Active Publication Date: 2020-11-10
SHANGHAI AEROSPACE SYST ENG INST
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Problems solved by technology
On the one hand, the structure of the balance system is complicated, the site requirements are large, and the manufacturing cost is high; on the other hand, it cannot be used in environments where human participation is inconvenient, such as high and low temperature tests
Method used
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Embodiment Construction
[0021] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0022] Such as Figure 1~4 As shown, a follow-up gravity balance device includes a plate support 1, a support leg 2, a winding wheel 3, a counterweight chain 4, a take-up reel 5, a pulling rope 6, and a connecting joint 7. The plate support 1 is the mounting seat of the gravity balance device, and the supporting legs 2 are fixed on both sides of the lower surface of the plate support 1; two winding wheels 3 are arranged along the axial direction of itself, and are respectively connected with the supporting legs 2 on both sides; The heavy chain 4 is wound along the helical direction of the spiral groove on the surface of the chain wheel 3, one end is fixed to the edge of the chain wheel 3, and the other end is freely suspended outside the spiral groove of the chain wheel 3; the pulling rope 6 is wound on the take-up reel 5 , the free hanging end is connected ...
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A follow-up gravity balancing device comprises a plate-type supporting frame and the like. Supporting legs are installed on the two sides of the plate-type supporting frame and jointly serve as an installation foundation of the chain wheel and the take-up reel. The winding chain wheel is arranged in the axial direction of the winding chain wheel and connected with the two supporting legs. One endof the counterweight chain is fixedly connected with the edge of the winding wheel, and the other end of the counterweight chain is freely suspended outside the winding wheel groove. And the take-up reel is arranged between the two winding chain wheels and is connected in series through the connecting joint. And the traction rope is wound on the take-up reel, and the free suspension end is connected with equipment with balanced gravity. The device can be used for the follow-up gravity balance function of gravity-free unfolding or folding of the one-dimensional stretching mechanism in the ground vertical direction, and the reliability of ground unfolding and folding function verification of the stretching mechanism is improved.
Description
technical field [0001] The invention relates to the technical field of retractable mechanisms for aerospace vehicles, in particular to a follow-up gravity balance device. Background technique [0002] The trend of large-scale spacecraft is becoming more and more obvious, and the size of the deployment mechanism for deploying solar cell arrays or antennas on spacecraft is getting larger and larger. In order to improve the reliability of on-orbit deployment, it is necessary to simulate the deployment without gravity on the ground. As one of the core components of large-area solar wings, the stretching mechanism has a large deployment length and precise coordination of moving parts. The test of its ground deployment and retraction function requires a weight balance device that can move with the deployment and retraction direction and accurately counterweight. [0003] The existing gravity balance device mainly balances the gravity of the stretching mechanism through a horizonta...
Claims
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IPC IPC(8): B64G7/00
CPCB64G7/00
Inventor 罗海军崔琦峰彭志龙王治易张雷
Owner SHANGHAI AEROSPACE SYST ENG INST