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Adjustable centrifugal speed limiting device

A speed limiting device and adjustable technology, applied in transmission, clutch, transportation and packaging, etc., can solve problems such as boarding gate free fall, overspeed protection and torque limitation

Active Publication Date: 2020-08-14
QINGAN GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention: to provide an adjustable centrifugal speed limiting device, which effectively solves the failure of the actuator (hydraulic or mechanical) of the boarding door It can also be applied to the overspeed protection and torque limitation of various flip-out hatches and other mechanisms

Method used

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  • Adjustable centrifugal speed limiting device
  • Adjustable centrifugal speed limiting device
  • Adjustable centrifugal speed limiting device

Examples

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Embodiment Construction

[0039] figure 1 The structure schematic diagram of the adjustable centrifugal velocity limiting device provided for the embodiment of the present invention, such as figure 1 As shown, the adjustable centrifugal speed-limiting device includes: a planetary gear speed-up mechanism 100, a spur gear speed-up mechanism 200 and a centrifugal speed-limiting mechanism 300; the centrifugal speed-limiting mechanism 300 includes: a housing 8, a rotating shaft 9, a slider 10. Centering bolt 11; the slider 10 is provided with a steel ball 13, a spring II 14, and an adjusting screw 15; wherein,

[0040] The input end of the planetary gear speed-up mechanism 100 is spline-connected to the rotating shaft at the handrail of the boarding door; the output end of the planetary gear speed-up mechanism 100 is connected to the input spur gear of the spur gear speed-up mechanism 200;

[0041] The output spur gear of described spur gear speed-up mechanism 200 is connected with described rotating shaf...

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PUM

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Abstract

The invention provides an adjustable centrifugal speed limiting device. The adjustable centrifugal speed limiting device comprises a planetary gear speed increasing mechanism (100), a straight gear speed increasing mechanism (200) and a centrifugal speed limiting mechanism (300), wherein the centrifugal speed limiting mechanism (300) comprises a shell body (8), rotating shafts (9), sliding blocks(10) and centering bolts (11); and steel balls (13), springs II (14) and adjusting screws (15) are arranged in the sliding blocks (10). The problem that a boarding gate falls freely when an actuator (hydraulic or mechanical) breaks down is effectively solved, and the adjustable centrifugal speed limiting device can be applied to overspeed protection and torque limitation of various outward-turningcabin doors and other mechanisms.

Description

technical field [0001] The invention belongs to the field of mechanical structures, and in particular relates to an adjustable centrifugal speed limiting device. Background technique [0002] The boarding doors of existing small airliners basically adopt a door-ladder integrated structure, which is turned outward to realize the lowering of the boarding door. The door is usually equipped with a hydraulic actuator or a torsion bar spring as a damper for the door to fall by gravity. When the hydraulic actuator or the torsion bar spring fails, the door is prone to over-speed falling, and the over-speed protection is realized by setting speed limiting devices on both sides of the door shaft. [0003] At present, most speed limiting devices are implemented in the form of one-way clutch, through the frictional locking effect of friction plate or friction body and the friction parts to achieve the effect of overspeed braking, while the traditional centrifugal speed limiting device r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H37/04F16D43/18B64C1/14B64C1/24E05F3/04E05F3/18
CPCF16H37/041F16D43/18B64C1/1423B64C1/24E05F3/04E05F3/18
Inventor 智文静宣源鹏
Owner QINGAN GRP
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