A forced lubrication system for a four-eccentric exciter

CN224397097UActive Publication Date: 2026-06-23NANJING FORESTRY UNIV +1

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: NANJING FORESTRY UNIV
Filing Date: 2025-09-15
Publication Date: 2026-06-23

AI Technical Summary

Technical Problem

In existing hydraulic vibratory pile drivers, the viscosity of the lubricating oil decreases during high-speed operation, resulting in low heat dissipation efficiency and uneven cooling, which cannot meet the requirements of efficient lubrication and rapid heat dissipation under high-frequency excitation conditions.

Method used

A forced lubrication system combining external circulation cooling and internal splash atomization cooling is adopted. High-temperature gear oil is delivered to the fan condenser for external cooling through a high-speed flow pump, and sprayed to the bearing housing through the top diversion pipe for internal cooling, combined with the auxiliary cooling of gear oil splash atomization in the gearbox.

Benefits of technology

This achieves efficient lubrication and rapid heat dissipation of the vibrator, reduces the operating temperature of bearings and gears, and extends the service life of the equipment.

✦ Generated by Eureka AI based on patent content.

Smart Images

Figure CN224397097U_ABST

Patent Text Reader

Abstract

The utility model relates to a forced lubricating system of adapting four eccentric exciters, its structure is four eccentric exciters inside gear box, four eccentric exciters top part flow pipe is equipped, front drive motor and high -speed flow pump are equipped, bottom gear oil oil outlet connects oil filter, oil filter connects high -speed flow pump, high -speed flow pump is connected fan condenser, fan condenser connects top part flow pipe, and top part flow pipe divides four paths and connects four eccentric exciters front four bearing seats. The utility model has the advantages of: in the operation process, through the combination of external circulation cooling and internal splashing atomization cooling, the circulating cooling mode of inside and outside cooperation is realized, the working temperature of bearing and gear can be effectively reduced, the lubricating effect is improved, the service life of equipment is prolonged, and it is applicable to hydraulic vibration pile driver and other high-frequency exciting equipment, especially applicable to four eccentric exciters.

Need to check novelty before this filing date? Find Prior Art