A load-carrying rod device
A technology of tie rod device and inner tie rod, which is applied in the field of aircraft landing gear, can solve the problems of not meeting simple, fast, safe and low-cost maintainability requirements, long maintenance inspection preparation time, and high maintenance inspection cost, so as to simplify maintenance preparation Process, easy maintenance, time and cost reduction effect
Active Publication Date: 2021-12-03
LANDING GEAR ADVANCED MFG
View PDF9 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] ① Remove the connecting fasteners such as connecting bolts and nuts between the tie rod and the hatch door, so that the tie rod is disconnected from the hatch door, and the hatch door is fully opened by its own weight, but it is not fixed.
These two methods of opening the hatch for inspection and maintenance require a long time to prepare for maintenance and inspection, and the process is very troublesome. Special tools and equipment are required. The cost of maintenance and inspection is high, and there are unsafe factors, which are not in line with the simplicity, speed and safety of modern aircraft. , low cost maintenance requirements
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0039] The present invention will be described in detail below with reference to the accompanying drawings and examples. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. For the convenience of description, if the words "up", "down", "left" and "right" appear in the following, it only means that the directions of up, down, left and right are consistent with the drawings themselves, and do not limit the structure.
[0040] Such as figure 1 As shown, a loadable tie rod device provided in this embodiment includes an outer tie rod assembly 1 , an inner tie rod assembly 2 and a lock mechanism assembly 3 .
[0041] Such as figure 2 As shown, the outer tie rod assembly 1 includes an outer tie rod 7 and an earring joint 4 , the earring joint 4 is threadedly connected to one end of the outer tie rod 7 and locked by a nut 5 . And between the outer tie rod 7 and the earrin...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a loadable pull rod device. The tie rod device includes an outer tie rod assembly, an inner tie rod assembly and a lock mechanism assembly, the inner tie rod assembly is sleeved in the outer tie rod assembly and can expand and contract along the outer tie rod assembly; the lock mechanism assembly is connected with the inner tie rod assembly The low secondary contact locks the inner tie rod assembly at the corresponding position on the outer tie rod assembly; the inner tie rod assembly is in an unlocked state during the process of extending and contracting the outer tie rod assembly. Compared with the related technology, the actuating device of the present invention solves the problem that the existing aircraft door pull rod cannot complete the fast, safe and simple opening and closing of the door, and realizes the rapid, safe and convenient maintenance, maintenance and repair of the aircraft. There is no need to disassemble and assemble the tie rod and the hinge of the hatch door, as well as subsequent installation.
Description
technical field [0001] The invention belongs to the technical field of aircraft landing gear, and in particular relates to a loadable pull rod device for opening and closing aircraft landing gear doors and cargo doors. Background technique [0002] The aerodynamics and maintainability of the aircraft are important indicators of modern aircraft design. The aircraft landing gear door is usually divided into two parts. The small door is opened and closed independently by the hydraulic system, and the large door and the landing gear are opened and closed through the pull rod. . [0003] After the landing gear is lowered, in order to improve the aerodynamic performance of the aircraft, the large hatch of the landing gear fixedly connected with the landing gear will be in a closed state. After the aircraft lands and stops, because the large hatch of the landing gear is closed, it is impossible to inspect and maintain the landing gear system and other components and devices in the...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): B64C25/16B64C1/14
CPCB64C1/1407B64C25/16
Inventor 张健全程国良马颖黄立新邓晓山金军路红伟陈永卿田晓波林潇
Owner LANDING GEAR ADVANCED MFG