阅读说明：本技术 一种舱门关闭限位弹性结构 (Elastic structure for closing and limiting cabin door ) 是由 董晓莉 赵小龙 陶金库 毛磊凯 马爽 张秀丽 于 2020-12-17 设计创作，主要内容包括：本发明属于民用客机舱门与机身界面设计领域,提供了一种舱门关闭限位弹性结构,其可多点布置在门周结构上。本发明涉及一种舱门关闭限位弹性结构,可以同时解决常规设计方案中的两个问题。一是螺旋作动器推动舱门至关闭位置时是弹性的,不但在达到关闭位置前存在一定的结构缓冲行程,同时,对服役期间舱门气动力引起的震动也有所缓解,最终减小对螺旋作动器刚性冲击,可延长螺旋作动器寿命；二是舱门总装时可通过结构变形量设计提高装配效率,降低成本,并且满足界面密封压缩量要求。本发明结构简洁,传力路径清晰,不仅可以减轻螺旋作动器硬碰硬带来的损伤,延长其使用寿命,同时也可以降低装配成本,提高装配效率。(The invention belongs to the field of design of interfaces between a cabin door and a fuselage of a civil airliner, and provides a cabin door closing limiting elastic structure which can be arranged on a door peripheral structure in multiple points. The invention relates to a cabin door closing limiting elastic structure which can simultaneously solve two problems in a conventional design scheme. Firstly, the spiral actuator is elastic when pushing the cabin door to the closing position, so that a certain structural buffer stroke exists before the cabin door reaches the closing position, and meanwhile, the vibration caused by aerodynamic force of the cabin door during service is relieved, the rigid impact on the spiral actuator is finally reduced, and the service life of the spiral actuator can be prolonged; secondly, the assembly efficiency can be improved through the structural deformation design during the cabin door final assembly, the cost is reduced, and the requirement of interface sealing compression amount is met. The invention has simple structure and clear force transmission path, can reduce the damage caused by hard touch of the spiral actuator, prolong the service life of the spiral actuator, reduce the assembly cost and improve the assembly efficiency.)

1. A hatch door closes spacing elastic construction, it can arrange on door peripheral structure (2) in multiple points; it is characterized in that one end of the cabin door closing limiting elastic structure is a solid structure and is mechanically connected with the door peripheral structure (2); the other end of the cabin door closing limiting elastic structure is a cavity structure, the section of the cavity structure is an inner cavity deformable section and is divided into an external limiting section (4) and an internal deformable section (5); the cabin door (3) is opened, and when the cabin door is not contacted with the door peripheral structure (2), the limiting section (4) and the deformation section (5) of the cabin door closing limiting elastic structure are in a separated state; when the cabin door (3) is just contacted with the door peripheral structure (2), the deformation section (5) of the cabin door closing limiting elastic structure begins to deform; after the cabin door (3) is contacted with the door peripheral structure (2), the deformation section (5) of the cabin door closing limiting elastic structure starts to deform, which is an initial limiting value and meets the interface sealing requirement; and adjusting the deformation of the deformation section (5) by combining the operation position of the spiral actuator and the manufacturing and assembling tolerance accumulation condition of the cabin door, and finally pressing the limiting section (4) to reach the limiting maximum value and simultaneously reach the maximum value of the compression amount of the interface sealing element.

2. The door closure restrictor resilient structure of claim 1, wherein the door closure restrictor resilient structure is a metal profile member.

Technical Field

The invention relates to a cabin door closing limiting elastic structure, belonging to the field of interface design of a cabin door and a fuselage of a civil airliner.

Background

Generally, a cabin door of a civil airliner and a peripheral structure of a door of a fuselage are positioned through a plurality of rigid stoppers, a bolt is manually adjusted during the assembly of the cabin door so as to meet the requirement of the assembly step difference of the cabin door and the peripheral structure of the door of the fuselage, and the cabin door pushes the cabin door to an opening or closing position through a spiral actuator. In the conventional scheme, the spiral actuator is rigid when pushing the cabin door to a closed position, the spiral actuator and a connecting structure are easily damaged, and in addition, the spiral actuator is also damaged due to vibration caused by aerodynamic force of the cabin door during service, so that the service life of the spiral actuator is reduced; the bolt is manually adjusted for multiple times to meet the requirement of pneumatic appearance step difference during cabin door assembly, the efficiency is low, and the assembly period is long. At present, the domestic cabin door positioning has no better design experience, and the problems are solved by the need of new technology innovation and optimization.

Disclosure of Invention

The invention aims to provide a cabin door closing limiting elastic structure which can simultaneously solve two problems in the conventional design scheme. Firstly, the spiral actuator is elastic when pushing the cabin door to the closing position, so that a certain structural buffer stroke exists before the cabin door reaches the closing position, and meanwhile, the vibration caused by aerodynamic force of the cabin door during service is relieved, the rigid impact on the spiral actuator is finally reduced, and the service life of the spiral actuator can be prolonged; secondly, the assembly efficiency can be improved through the structural deformation design during the cabin door final assembly, the cost is reduced, and the requirement of interface sealing compression amount is met.

In order to solve the above problems, the specific technical scheme of the invention is as follows:

a hatch door closes spacing elastic construction, it can arrange on door peripheral structure 2 in multiple points; one end of the cabin door closing limiting elastic structure is a solid structure and is mechanically connected with the door peripheral structure 2; the other end of the cabin door closing limiting elastic structure is a cavity structure, and the section of the cavity structure is an inner cavity deformable section and is divided into an external limiting section 4 and an internal deformable section 5; the cabin door 3 is opened, and when the cabin door is not contacted with the door peripheral structure 2, the limiting section 4 and the deformation section 5 of the cabin door closing limiting elastic structure are in a separated state; when the cabin door 3 just contacts with the door peripheral structure 2, the deformation section 5 of the cabin door closing limiting elastic structure begins to deform; after the cabin door 3 is contacted with the door peripheral structure 2, the deformation section 5 of the cabin door closing limiting elastic structure starts to deform, which is an initial limiting value and meets the interface sealing requirement; and adjusting the deformation of the deformation section 5 by combining the operation position of the spiral actuator and the accumulated condition of the manufacturing and assembling tolerance of the cabin door, and finally pressing the limiting section 4 to reach the limiting maximum value and simultaneously reach the maximum value of the compression amount of the interface sealing element.

The cabin door closing limiting elastic structure is a metal section bar.

The invention has the beneficial effects that: the invention has simple structure and clear force transmission path, can reduce the damage caused by hard touch of the spiral actuator, prolong the service life of the spiral actuator, reduce the assembly cost and improve the assembly efficiency.

Drawings

Fig. 1 is a sectional view showing a state where a hatch door is just in contact with a door peripheral structure.

Fig. 2 is a cross-sectional view of the door and the door periphery structure in a compressed state.

Figure 3 is an isometric view of a door closure limiting spring arrangement.

In the figure: 1, a cabin door closing limiting elastic structure; 2, a door peripheral structure; 3, a cabin door; 4, limiting the cross section; 5 deformed cross section.

Detailed Description

The following further describes a specific embodiment of the present invention with reference to the drawings and technical solutions.

As shown in fig. 1, a hatch door closing limit elastic structure 1 can be arranged on a door peripheral structure 2 at multiple points, the closing limit elastic structure 1 is a metal profile, one end of the closing limit elastic structure is mechanically connected with the door peripheral structure 2, and the other end of the closing limit elastic structure is an inner cavity deformable section which comprises a limit section 4 and a deformable section 5. When the cabin door 3 is opened and is not contacted with the door peripheral structure 2, the limiting section 4 and the deformation section 5 of the inner cavity of the cabin door closing limiting elastic structure 1 are in a separated state; when the cabin door 3 is just contacted with the door peripheral structure 2, the deformation section 5 of the inner cavity of the cabin door closing limiting elastic structure 1 begins to deform;

as shown in fig. 2, after the door 3 contacts the door peripheral structure 2, the deformation section 5 of the inner cavity of the door closing limit elastic structure 1 begins to deform, which is an initial limit value and meets the interface sealing requirement; adjusting the deformation of the deformation section 5 by combining the operation position of the spiral actuator and the accumulated condition of the manufacturing and assembling tolerance of the cabin door, and finally pressing the limiting section 4 to reach the limiting maximum value and simultaneously reach the maximum value of the compression amount of the interface sealing element; the invention has the following advantages and beneficial effects: 1. the life of the screw actuator is prolonged. The invention provides a safer structural design concept of the cabin door closing limiting elastic structure, which can reduce the damage of rigid impact on a spiral actuator through structural detail design on the basis of meeting the function of the spiral actuator.

3. The assembly cost of the cabin door is reduced. The invention considers the design concept of structural compensation, replaces the manual adjusting process, greatly improves the assembly efficiency and reduces the assembly cost.