Aircraft door opening or locking drive mechanism
A technology for driving mechanisms and aircraft doors, applied in the direction of power control mechanisms, aircraft accessories, wing leaf control mechanisms, etc., can solve the problems of many transmission stages, reliability impact, weight increase, etc., and achieve high transmission precision and compact layout , the effect of reducing the number of parts
Inactive Publication Date: 2011-05-25
XIAN AIRCRAFT IND GROUP
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Problems solved by technology
[0002] The driving part of the opening and locking mechanism used in the current aircraft door adopts the combination of spur gear and planetary gear. The transmission ratio of this driving method is relatively small, and the transmission ratio of each gear combination is generally 3-5. In the case of a large transmission ratio, the number of gears used is large, the number of connecting parts and supporting parts increases accordingly, and the weight will increase a lot; the number of transmission stages is large, and the overall reliability is also affected. These shortcomings are all bad factors for the aircraft.
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[0014] For the specific design of the aircraft door, the drive of the door opening mechanism is as follows: figure 1 As shown, the opening mechanism is required to achieve the requirement of turning 100 degrees in one minute. In practice, the motor 1 uses a motor power of 1500 rpm, and the time it takes for the output to rotate 100 degrees is 0.82 minutes. The specific transmission process is that the motor 1 drives the worm 2, the worm 2 drives the worm gear 3, the worm gear 3 drives the worm 4, the worm 4 drives the worm gear 5, the worm gear 5 drives the planetary gear system 6, and the planetary gear system 6 drives the torque output shaft 7 to achieve the purpose of deceleration drive . Two-stage worm transmission is adopted. Since the transmission torque of the first stage is small, the number of 3 teeth of the worm gear is 80, the number of worm heads is 1, and the transmission ratio is 80; the transmission torque of the second stage is 80 times that of the first stage...
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The invention discloses an aircraft door opening or locking drive mechanism. A drive form of the combination of a worm, a gear and a planetary gear train is adopted; speed reduction is realized by adopting worm gear and worm drive; a drive ratio is adjusted by gear drive; suitable parameters are selected; the planetary gear train is adopted for drive; and the requirement on large torque is met. The mechanism has the advantages that: the number of drive series is less; the number of parts is reduced; and the weight of the used parts is relatively low, which is a primary consideration factor for aircraft performance.
Description
technical field [0001] It is used in the field of aviation and is suitable for the occasion of a large reduction ratio and booster mechanism, especially an aircraft door opening or locking drive mechanism. Background technique [0002] The driving part of the opening and locking mechanism used in the current aircraft door adopts the combination of spur gear and planetary gear. The transmission ratio of this driving method is relatively small, and the transmission ratio of each gear combination is generally 3-5. In the case of a large transmission ratio, the number of gears used is large, the number of connecting parts and supporting parts increases accordingly, and the weight will increase a lot; the number of transmission stages is large, and the overall reliability is also affected. These shortcomings are all bad factors for the aircraft. . The motor drive deceleration booster part of the upward opening mechanism of the aircraft door requires about 1 minute to open about ...
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Login to View More IPC IPC(8): E05F15/10B64C1/14E05F15/603
Inventor 郑永罡
Owner XIAN AIRCRAFT IND GROUP