JPS63129736U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing a braking device for a vertical shaft rotating electric machine according to an embodiment of this invention, Fig. 2 is an enlarged view showing a compression spring according to this invention, and Fig. 3 shows the characteristics of braking force according to this invention. FIGS. 4 and 5 are cross-sectional views showing a conventional brake device for a vertical shaft rotating electrical machine, and FIGS. 6 to 8 are cross-sectional views showing the conventional brake operating principle and characteristics in FIG.
It is a characteristic diagram. In the figure, 1 is a brake ring, 2 is a yoke, 3 is a coil, 5 is a push-up body, 6 is a brake lining, 7 is a suction piece, 8 is a push-up plate, and 10 is a compression spring. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A brake ring attached to the rotating body of a vertical shaft rotating electrical machine, a yoke disposed on the underside of the brake ring, containing a coil and having a vertical through hole, and this brake ring. a suction piece disposed on the side opposite to the brake ring of the yoke, which is attracted to the yoke by the electromagnetic force of the coil and has a through hole at a position facing the through hole of the yoke; A push-up body that is inserted through the body, one side of which is located on one side of the suction side, and the other side of which extends near the lower surface of the brake ring and moves up and down; A brake lining that is pressed against the brake ring and brakes the rotating body when moved; a push-up plate that is connected to one side of the push-up body below the suction piece; and a push-up plate that is attached to the suction piece and that is attached to the suction piece. and a compression spring that presses the brake lining against the brake ring by a spring reaction force generated when the piece is compressed when the piece is attracted to the yoke, and when assembled by giving an initial compression allowance to the compression spring, the initial compression allowance is applied to the brake. A brake device for a vertical shaft rotating electric machine, characterized in that the amount of deflection of the compression spring that occurs during braking is greater than the amount of deflection of the compression spring. (2) The push-up plate has multiple supports on its outer edge whose tips extend near the bottom surface of the brake ring, and a compression spring is installed between the tips of these supports and the outer edge of the suction piece. A brake device for a vertical shaft rotating electrical machine as set forth in claim 1 of the utility model registration claim. (3) The brake device for a vertical shaft rotating electric machine according to claim 1, wherein the compression spring is installed between the suction piece and the brake lining through the through hole of the yoke.