Pump suction type external circulation cooling device for lubricating oil in vibration box of hydraulic vibration pile driver

Abstract

The invention discloses a pump suction type external circulation cooling device for lubricating oil in a vibration box of a hydraulic vibration pile driver. The pump suction type external circulation cooling device is characterized in that an oil suction pump and a radiator are arranged outside the vibration box, and the oil suction pump is arranged on a first end cover or a second end cover; a driving wheel is arranged on a driving shaft or the driving wheel is arranged on a driven shaft, and a driven wheel is arranged on a rotary input shaft of the oil suction pump; and power of the driving shaft or the driven shaft is transmitted to the oil suction pump through meshing of the driving wheel and the driven wheel, the oil suction pump sucks the lubricating oil in the vibration box into the radiator for heat dissipation and cooling, and the lubricating oil flows back into the vibration box through an oil return pipe, so that cooling circulation of the lubricating oil outside the vibration box is realized. According to the pump suction type external circulation cooling device for the lubricating oil in the vibration box of the hydraulic vibration pile driver, the power is provided for the oil suction pump through rotation of the driving shaft or the driven shaft in the working process, the oil suction pump does not need to be externally connected with other power devices, external cooling circulation of the lubricating oil in the vibration box is achieved, the heat dissipation efficiency of the equipment is improved, and the service life of the equipment is prolonged.

Description

technical field [0001] The invention relates to the technical field of pile drivers, in particular to a circulating cooling device for lubricating oil in a vibration box of the pile driver. Background technique [0002] The vibration box of the hydraulic vibratory pile driver is equipped with a driving shaft and a driven shaft, and a synchronous gear with the same structural parameters is installed on the driving shaft and the driven shaft, and the driving shaft and the driven shaft are synchronized through the synchronous gear meshing transmission. For rotation, eccentric wheels are installed on both the driving shaft and the driven shaft. One end of the driving shaft is connected to the hydraulic motor. When the hydraulic motor drives the driving shaft to rotate, the driven shaft also rotates synchronously. The centrifugal force generated by the eccentric wheel on the driving shaft and the driven shaft drives the vibration box of the hydraulic vibration pile driver to vibr...

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Problems solved by technology

[0003] Both ends of the driving shaft and the driven shaft in the vibrating box of the hydraulic vibratory pile driver are installed with supporting bearings. The supporting bearings are installed in the vibrating box. The wheel produces a large centrifugal force, and the supporting bearings at both ends of the driving shaft and the driven shaft bear the action of this high-frequency centrifugal force. The friction of the bearings heats up seriously, and the heat is transferred to the lubricating oil in the vibrating box. Since the lubricating oil is sealed in the vibrating box, it cannot Effective heat dissipation causes the temperature of the lubricating oil to rise rapidly, making the supporting bearing poor in heat dissipation through the lubricating oil, and the bearing is easy to be damaged. At the same time, the lubricating oil temperature is too high and quickly ages, losing its lubricating effect, which further weakens the lubrication conditions of the bearing and other moving parts.

[0004] Generally speaking, the lubricating oil in the vibrating box of the pile driver mainly relies on the shell of the vibrating box to dissipate heat. The shell is very thick and the heat dissipation effect is poor. Some of them use cooling fans installed inside the vibrating box to dissipate heat, but the lubricating oil is still used. Enclosed in the vibration box, the heat dissipation effect is not ideal

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