Sensor for measuring relative rotating speed of two concentric rotating shafts of double-rotor motor
A dual-rotor motor, relative speed technology, applied in the field of speed measuring sensors, can solve the problems of double-rotor structure speed difference, the sensor cannot directly measure, etc., to achieve the effect of no signal lag and simple structure
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specific Embodiment approach 1
[0026] Specific implementation mode one: the following combination Figure 1 to Figure 6 Describe this embodiment, this embodiment is made up of reluctance type resolver 1, signal transmission device 2 and signal processor 3, reluctance type resolver 1 is composed of resolver outer rotor 1-1, resolver inner rotor 1-2, The excitation winding 1-3, the sine winding 1-4 and the cosine winding 1-5 are composed, the outer rotor 1-1 of the resolver and the inner rotor 1-2 of the resolver are coaxially arranged, and the inner surface of the outer rotor 1-1 of the resolver and the rotary A first air gap 4 is provided between the outer surfaces of the inner rotors 1-2, the outer rotor 1-1 of the resolver is installed on the outer rotor 5 of the dual-rotor motor, and the inner rotor 1-2 of the resolver is installed on the outer rotor of the dual-rotor motor On the inner rotor shaft 6, one of the resolver outer rotor 1-1 and the resolver inner rotor 1-2 has an even number of teeth 1-6, an...
specific Embodiment approach 2
[0028] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the excitation winding 1-3 inputs the high-frequency excitation voltage U F1-F2 =U m sin ω e t,
[0029] The induced electromotive force of the sinusoidal winding 1-4 is expressed as: E S1-S2 = kU m sin ω e tsinθ,
[0030] The induced electromotive force of cosine winding 1-5 is expressed as: E C1-C2 = kU m sin ω e t cos θ,
[0031] In the formula:
[0032] F1-F2- is the excitation winding 1-3;
[0033] S1-S2- is the sinusoidal winding 1-4;
[0034] C1-C2- is the cosine winding 1-5;
[0035] ω m1 - is the angular velocity of the resolver inner rotor 1-2;
[0036] ω m2 - is the angular velocity of the resolver outer rotor 1-1;
[0037] k- is the transformation ratio coefficient, that is, the transformation ratio coefficient of the induced electromotive force on the sine winding 1-4 and the cosine winding 1-5 and the excitation voltage on the excitation winding 1-3;
[0038] u ...
specific Embodiment approach 3
[0044] Specific implementation mode three: the following combination figure 2 Describe this embodiment, the difference between this embodiment and Embodiment 1 or 2 is that the signal transmission device 2 consists of six brushes 2-1, six slip rings 2-2, seven insulating rings 2-3 and Composed of two fixed rods 2-4, seven insulating rings 2-3 and six slip rings 2-2 are located outside the dual-rotor motor casing 7 and are sequentially arranged on the outer rotor shaft 9 of the dual-rotor motor, each The slip ring 2-2 is lapped with a brush 2-1, and the brush 2-1 is arranged on both sides of the outer rotor shaft 9 of the double-rotor motor, and the brush 2-1 is connected to the double-rotor motor through the fixed rod 2-4 respectively. The shell 7 is fixedly connected, the two ends of the winding wires of the excitation winding 1-3, the sine winding 1-4 and the cosine winding 1-5 are respectively connected with a slip ring 2-2, and the two ends of the winding wires of the exc...
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