Hydraulic two-way recooling type heat dissipation type hydraulic hammer

Abstract

The invention discloses a hydraulic two-way recooling type heat dissipation type hydraulic hammer, and belongs to the technical field of heat dissipation treatment of hydraulic hammers. Cooling liquid is supplied to the upper end part and the lower end part of a liquid storage cavity through a water cooling box; and by utilizing the principle that a piston drives a drill rod and a movable sleeve to move up and down in a reciprocating mode, the cooling liquid supplied to the lower end part of the liquid storage cavity is extruded when the movable sleeve moves downwards, so that the cooling liquid is guided into a drainage cavity through a perfusion hole and flows through a connecting tenon body and overflows through a spraying hole, and therefore, on the one hand, a drill rod and a drill hammer head are cooled, and on the other hand, the sprayed cooling liquid plays a dust falling role; and when the movable sleeve moves upwards, on the one hand, the cooling liquid is supplied to the lower end part of the liquid storage cavity through a negative pressure, and on the other hand, the cooling liquid at the upper end part of the liquid storage cavity is pressed into a recooling cavity and wets multiple refrigeration bag rods, the cooling liquid and the recooling cavity cooperate with each other so that the cooling effect on the hydraulic cavity can be improved; after the movable sleeve retreats, the cooling liquid in the recooling cavity synchronously retreats; circulation is conducted in this way; and therefore, two-way water cooling is achieved through hydraulic reciprocating motion.

Description

technical field [0001] The invention relates to the technical field of heat dissipation treatment of hydraulic hammers, and more specifically relates to a hydraulic two-way back-cooling type heat dissipation hydraulic hammer. Background technique [0002] The hydraulic hammer belongs to the impact piling hammer. When working, it relies on the hydrostatic pressure as the power to drive the piston in the hammer body to reciprocate. Solids such as ore and concrete are crushed. [0003] After the hydraulic hammer works for a long time, the friction caused by the up and down movement will not only increase the temperature at the piston, but also increase the temperature at the contact end of the drill rod, the hammer body and the hammered solid phase. When the temperature of the drill rod is too high, its hardness will be reduced to a certain extent, thereby reducing the working efficiency of the equipment. [0004] For this reason, we propose a hydraulic two-way back-cooling t...

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Problems solved by technology

[0003] After the hydraulic hammer works for a long time, the friction caused by the up and down movement will not only increase the temperature at the piston, but also increase the temperature at the contact end of the drill rod, the hammer body and the hammered solid phase. When the temperature of the drill rod is too high, its hardness will be reduced to a certain extent, thereby reducing the working efficiency of the equipment

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