KR880012474A - Continuously variable hoist - Google Patents

Abstract

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Description

Continuously variable hoist

Since this is an open matter, no full text was included.

1 to 2 show one embodiment of the present invention, FIG. 1 is a control circuit diagram of a continuously variable hoist according to the present invention, FIG. 2 is a longitudinal sectional view showing the internal structure of the hoist of the present invention, and FIG. 3 is a hoist of the present invention. Control circuit diagram showing another embodiment of the.

Claims (10)

In a continuously variable hoist having a mechanical continuously variable mechanism between a reel motor and a reducer and changing the output shaft rotational speed of the continuously variable transmission by changing a resistance of a resistor, for low speed and high speed for speed setting of the continuously variable transmission mechanism. Stepless endurance, comprising: two resistors; and a combination of a two-stage press-fit pendant switch and a relay configured to be connected to the low speed resistor at the first stage of the pendant switch, and Variable speed hoist. The continuously variable hoist according to claim 1, wherein the low speed resistor of the two resistors provided for setting the speed of the mechanical continuously variable mechanism is a variable resistor. The continuously variable hoist according to claim 1, wherein the high-speed resistor among the two resistors provided for setting the speed of the mechanical continuously variable mechanism is a variable resistor. The continuously variable hoist according to claim 1, wherein both resistors provided for setting the speed of the mechanical continuously variable mechanism are variable resistors. The continuously variable hoist according to any one of claims 1 to 4, wherein two resistors are mounted on the hoist main body side separately from the pendant switch. The second stage connected state of the pendant switch, the power supply of the control panel for operating the resistor switching relay is cut off, restrain the shift of the continuously variable transmission mechanism to produce a constant speed output, and is further attached to the pendant switch The continuously variable hoist is configured to operate the high speed shift relay, connect the power supply of the control panel, and adjust the output shaft rotation speed of the continuously variable transmission mechanism to the set value by operating the push button of the control panel. 7. The continuously variable hoist according to claim 6, wherein the high-speed resistor of the two resistors provided for setting the speed of the mechanical continuously variable mechanism is a variable resistor. 7. The continuously variable hoist according to claim 6, wherein, among the two resistors provided for setting the speed of the mechanical continuously variable mechanism, the high speed resistor is a variable resistor. 7. The continuously variable hoist according to claim 6, wherein both resistors provided for setting the speed of the mechanical continuously variable mechanism are variable resistors. The continuously variable hoist according to any one of claims 6 to 9, wherein the two resistors are mounted on the hoist main body side separately from the pendant switch. ※ Note: The disclosure is based on the initial application.