Development and Application of Hydraulic Calipers Disc Brake Winch

The master winch of traditional spindle mechanical drilling machine has both the advantages of hook free-falling and rapid drilling tools lowering and the disadvantages of low abrasion resisting of belt asbestos braking, low friction coeffi-cients, difficult operation, low sensitivity, poor heat dissipation, poor high temperature property and difficult safety control for drilling tools assembling and disassembling.For the master winch of full-hydraulic dynamic head drill, the elevating speed is controlled by the flow of hydraulic system, the safety of drilling tools assembling and disassembling is easily guar-anteed, and the cooling forced by hydraulic system is also good.A hydraulic winch of full-hydraulic core drill is developed;the above problems of the master winch of traditional spindle mechanical drilling machine are solved by hydraulic pressure.