A kind of damping winch and its using method

Abstract

A dampable winch, comprising: a planetary reducer, a spline shaft connected to the planetary frame of the planetary reducer, a reel, a static friction plate, a dynamic friction plate, a first piston, a second piston, a spring, a spline sleeve, and a housing , the first sealing ring, the second sealing ring, the third sealing ring, the fourth sealing ring, the third piston, the spline shaft is connected with the spline sleeve through the static friction plate and the dynamic friction plate, and the spline sleeve is connected with the housing through the spline , the housing is connected to the frame, the first piston and the second piston form the first sealing cavity through the sealing of the first sealing ring and the second sealing ring; the second piston and the third piston pass through the third sealing ring and the fourth sealing ring The seal forms a second sealed cavity. The damping hoist of the present invention tightens the steel wire rope by applying an appropriate damping force immediately after the heavy hammer is lowered freely and approaches the ground or hits the ground. When the heavy hammer falls to the ground, the damping force of the hoist will offset the gravity and inertia of the steel wire rope , so that the steel wire rope will not be excessively released on the drum, and avoid the disorderly winding of the steel wire rope.

Description

technical field [0001] The invention relates to the field of engineering machinery, in particular to a hoist on a dynamic compaction machine in the field of engineering machinery and a method for using the same. Background technique [0002] At present, most of the dynamic compaction machines on the market use two methods to release the heavy hammer for compaction operations. One is to release the heavy hammer through the uncoupling device, and then use the free release function of the hoist to quickly release the hook, and the auxiliary personnel re-hook to complete the next step. Working cycle; a kind of direct use of the free release function of the hoist to release the heavy hammer without decoupling, and the free release function of the hoist stops after the heavy hammer falls to the ground. [0003] Using the free release function of the hoist to release the heavy hammer without decoupling, the steel wire rope and the heavy hammer will fall together. After the heavy ha...

AI Technical Summary

Problems solved by technology

Due to the different geological conditions of the tamping operation in this way, the distance of the heavy hammer tamping into the ground level after landing is different, and the time for the hoist to stop free lowering is different for each tamping operation cycle, which brings great benefits to the design of the dynamic tamping machine. The oil replenishment design of the motor oil circuit can provide a certain damping force through the reverse rotation of the motor to prevent the excessive release of the wire rope. It is difficult for the system to meet the requirements, which can easily cause negative pressure damage to motor parts

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