一种液压油独立冷却系统
By designing an independent cooling circuit, the problem of water cooler damage in hydraulic systems is solved, achieving stable cooling of hydraulic oil and long-term stable operation of the system, thereby improving the system's reliability and service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHENJIANG BAOCHENG GROUTING EQUIP
- Filing Date
- 2025-06-19
- Publication Date
- 2026-07-17
AI Technical Summary
The water coolers in existing hydraulic systems are susceptible to fluctuations in return oil pressure and hydraulic shocks, which can lead to easy damage to the coolers, unstable cooling effect, short service life, and the need to shut down for maintenance when a failure occurs, affecting production.
An independent cooling circuit is designed, in which hydraulic oil is drawn from the oil tank by a cooling oil pump, cooled by a water cooler, and then returned to the oil tank under zero back pressure. This avoids the impact of high-pressure oil return on the cooler. An independent cooling oil circuit is adopted, which is separated from the main working oil circuit, to ensure the stability and continuity of the cooling process.
It achieves continuous and stable cooling of hydraulic oil, avoids damage to the cooler due to high-pressure oil return, improves the reliability and service life of the system, reduces unplanned downtime, and ensures the continuity of production.
Smart Images

Figure CN224515558U_ABST
Abstract
Claims
1. A hydraulic oil independent cooling system characterized by, The system includes an oil tank (1), an oil pump motor (2), a cooling oil pump (3), a water cooler (5), an oil inlet pipe (6), and an oil return pipe (4). The oil pump motor (2) drives the oil pump to draw hydraulic oil from the oil tank through the oil suction port and pump it to the oil inlet pipe (6). The oil circuit block delivers the hydraulic oil to each actuator. The oil outlet of the oil return pipe (4) is connected to the oil tank. The cooling oil pump (3) is used to drive the hydraulic oil in the cooling oil circuit to flow continuously from the oil inlet to the oil outlet. The oil return pipe (4) is connected to the water cooler (5), which is used to cool the hydraulic oil flowing through it.
2. The hydraulic oil independent cooling system of claim 1, wherein, The water cooler (5) is supplied with oil by an independent oil pump.
3. The hydraulic oil independent cooling system of claim 2, wherein, The cooling oil pump (3) is connected to the water cooler (5).
4. The hydraulic oil independent cooling system of claim 2, wherein, The cooling oil pump (3) is equipped with an independent water cooler (5).
5. The hydraulic oil independent cooling system according to claim 3 or 4, characterized in that, The oil circuit block is located on the top of the oil tank (1), and its bottom surface is provided with an oil return port that extends into the oil tank (1).
6. The hydraulic oil independent cooling system as described in claim 5, characterized in that, The oil outlet of the return oil pipeline (4) is connected to the oil tank.
7. The hydraulic oil independent cooling system of claim 6, wherein, The water cooler (5) and the cooling oil pump (3) are located on one side of the oil tank.