Locking device for propeller beta tube
A technology for locking devices and propellers, which is applied in the direction of propellers, transportation and packaging, blade support elements, etc., can solve the problems of cumbersome operation, complex locking structure, poor stability, etc., and achieve simple overall structure, convenient operation and stable operation sex high effect
Active Publication Date: 2022-02-11
AVIC HUIYANG AVIATION PROPELLER
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The existing locking structure is complicated, the operation is cumbersome, and the stability is poor under the variable pitch operation of the mechanical hydraulic variable pitch actuator, which reduces the pitch variable flexibility of the propeller
Method used
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Embodiment Construction
[0019] 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.
[0020] The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0021] This embodiment relates to a locking device for a propeller beta tube, consisting of figure 1 As shown, a locking device for a propeller beta tube according to an embodiment of the present invention includes a beta tube 100, a dial sleeve 200, and a gear collar 300;
[0022] The outer circumferential side of the beta tube 100 is provided with a first protrusion 110; the dial sleeve 200 is set on the circumferential outer side of the beta tube, and the circumferential inner side of the dial sleeve is provided with a first groove matching the first protrusion 110 210, the circumferential outer side of the dial sleeve is the second groove 240; one end of the set tooth collar 300 abu...
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The invention provides a locking device for a beta tube of a propeller, which comprises a beta tube, a dial sleeve and a set collar. The outer circumferential side of the beta tube is provided with a first protrusion; the dial sleeve is fitted on the outer circumferential side of the beta tube, and the inner circumferential side of the dial sleeve is provided with a first groove matching the first protrusion. The circumferential outer side is a second groove; and one end of the set collar abuts against the circumferential outer side of the beta tube, and the circumferential inner side of the other end of the set collar is provided with a second groove matching the second groove. raised. The locking device of the present invention enables the beta tube and the dial sleeve to be clamped and fixed together, so that the beta tube and the dial sleeve can realize the variable pitch of the small-pitch oil circuit and the large-pitch oil circuit with the operation of the mechanical hydraulic distance variable actuator Operation, the locking device has a simple overall structure, convenient operation and high operational stability.
Description
technical field [0001] The invention relates to the technical field of propeller pitch change, in particular to a locking device for a propeller beta tube. Background technique [0002] The pitch changing device of the propeller is to control the propeller to work at the best blade angle under various working conditions of the engine and the aircraft, so as to achieve the best working efficiency of the propeller. For automatic variable pitch propellers, the blade angle is required to change with factors such as engine power, flight altitude, speed, attitude, and ambient temperature to maintain a constant propeller speed (high aerodynamic efficiency). The propeller pitch change device includes an adjustment control mechanism and a pitch change actuator. The main function of the variable pitch actuator is to convert the reciprocating motion of the piston in the linear direction into the swing of the blade, so that the propeller reaches a balanced speed. [0003] The beta tub...
Claims
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IPC IPC(8): F01D5/32B64C11/38
CPCF01D5/32B64C11/38
Inventor 秦卫周欣荣李桃郝丽蔡猛李媛媛
Owner AVIC HUIYANG AVIATION PROPELLER