Environment-resistant tachogenerator for aero-engine
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A technology for tachogenerators and aeroengines, applied in electromechanical devices, electrical components, measuring devices, etc., can solve the problems of harsh working environment, strength, temperature resistance, corrosion resistance and sealing failure, and reach the application temperature The effect of wide range, good sealing and high reliability
Pending Publication Date: 2020-03-27
沈阳兴华航空电器有限责任公司
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The tachogenerator used to monitor the rotational speed of the aeroengine has an extremely harsh working environment. The existing technology of the tachogenerator fails to give consideration to strength, temperature resistance, corrosion resistance and sealing. A tachogenerator capable of long-term and stable monitoring of the speed of an aeroengine
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[0029] refer to figure 1 and Figure 8 , a tachogenerator for an environment-resistant aeroengine, the tachogenerator includes a front housing 1, a rotor 2, a stator 3, a rear housing 4, a lock nut 5, a connecting nut 6, a ball 7, a sealing plug 8, Connector 9, shaft end nut 10, end sleeve 11, sealing assembly 12, gasket 14, back cover 15, cover 16;
[0030] The front housing 1 and the rear housing 4 are fixed by screws, the stator 3 is placed in the cavity formed after the front housing 1 and the rear housing 4 are installed; the rotor 2 is axially placed in the stator 3, and the rotor 2 includes connecting shaft rod 2-1, shaft 2-2, magnetic steel 2-3, and stop ring 2-4. 1 Axially placed inside the shaft 2-2, an annular groove 2-1-2-2 is provided at the end of the connecting shaft 2-1, and a stop ring is installed in the annular groove 2-1-2-2 2-4;
[0031] The front and rear ends of the shaft 2-2 are supported by the first bearing 18 and the second bearing 19 placed in t...
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Abstract
The invention provides an environment-resistant tachogenerator for an aero-engine. The problem that an existing tachogenerator cannot give consideration to strength, temperature resistance, corrosionresistance and sealing is solved. The tachogenerator comprises a front shell, a rotor, a stator, a rear shell, a locking nut, a connecting nut, a ball, a sealing plug, a connector, a shaft end nut, anend sleeve, a sealing assembly, a sealing ring, a sealing gasket, a rear cover and a blocking cover. The tachogenerator has the advantages of being high in reliability, good in sealing performance, high in corrosion resistance, wide in application temperature range, stable in output signal and the like, and can be popularized to spaceflight, weapons, ships and other equipment with similar requirements.
Description
technical field [0001] The invention belongs to the technical field of tachometer generators, and relates to a tachometer generator for an environment-resistant aeroengine. Background technique [0002] The tachogenerator is a device that converts the speed of the rotating part under test into an electrical signal output, and the speed of the part under test can be obtained by monitoring the electrical signal. The tachogenerator used to monitor the speed of the aeroengine has an extremely harsh working environment. The prior art tachometer fails to take into account the strength, temperature resistance, corrosion resistance and sealing. To solve this problem, we now provide a A tachogenerator capable of long-term and stable monitoring of the rotational speed of an aeroengine. Contents of the invention [0003] In order to solve the above technical problems, the present invention provides a tachogenerator capable of long-term and stable monitoring of the rotational speed o...
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Application Information
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