Double-cavity liquid cooling circulating heat dissipation type hydraulic oil tank for mine heavy truck

Abstract

This utility model relates to a dual-chamber liquid-cooled circulating hydraulic oil tank for heavy-duty mining trucks. It includes a hydraulic oil tank body, characterized by: a partition inside the tank body dividing it into a coolant chamber and a hydraulic oil chamber; a hydraulic oil inlet and cover, a breather filter B, a return port and valve, an outlet and valve, and a drain valve on the hydraulic oil chamber; a horizontal baffle and an inclined baffle inside the hydraulic oil chamber; and a radiator on the outside of the coolant chamber; a coolant inlet and cover, a breather filter A, a high-temperature coolant outlet, a low-temperature coolant inlet, a drain port, and a drain valve on the coolant chamber; the radiator is connected to the outer wall of the coolant chamber via low-temperature and high-temperature connecting pipes. This utility model effectively prevents high temperatures in the hydraulic system of heavy-duty mining trucks during operation, ensuring normal vehicle operation and extending the service life of pumps, valves, and hydraulic oil.

Description

Technical Field

[0001] This utility model belongs to the technical field of hydraulic oil tanks for heavy-duty mining trucks, and particularly relates to a dual-chamber liquid-cooled circulating heat dissipation hydraulic oil tank for heavy-duty mining trucks. Background Technology

[0002] In the metallurgical mining industry, heavy-duty mining dump trucks are key transportation equipment, and the stable operation of their hydraulic systems directly affects mining efficiency and operating costs. The hydraulic oil tank, as a core component of the hydraulic system, serves both oil storage and heat dissipation functions; however, the limitations of current heat dissipation technology have become a bottleneck restricting industry development. The natural heat dissipation method commonly used in existing heavy-duty mining dump trucks relies solely on natural convection and radiation between the tank walls and the environment due to the lack of an active cooling mechanism, resulting in extremely low heat dissipation efficiency. Under the high-intensity, continuous operation conditions in mines, the hydraulic system frequently operates under high loads, causing the hydraulic oil temperature to rise rapidly. Statistics show that failures caused by poor hydraulic system heat dissipation account for over 30%. High temperatures cause performance degradation in core components such as hydraulic pumps and valves, leading to slow response and malfunctions; they also accelerate the aging of hydraulic pipes and seals, increasing the risk of leaks; and in more severe cases, they can cause component jamming and burnout, resulting in unplanned downtime. Such malfunctions not only significantly shorten the service life of hydraulic components and hydraulic oil, and substantially increase equipment maintenance frequency and costs, but also severely reduce vehicle operating efficiency, impacting mine production progress and causing enterprises to face high operating costs and production losses. Therefore, developing efficient heat dissipation hydraulic oil tank technology has become a critical issue urgently needing to be addressed in the field of heavy-duty mining dump trucks. Utility Model Content

[0003] The purpose of this invention is to provide a dual-chamber liquid-cooled circulating hydraulic oil tank for mining heavy-duty trucks, in order to solve the industry problem of high-temperature heat dissipation in the hydraulic system of mining heavy-duty dump trucks.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] This utility model discloses a dual-mode temperature control and heat dissipation device for hydraulic oil tanks of heavy-duty mining dump trucks, comprising a hydraulic oil tank body, characterized in that: a partition is provided inside the hydraulic oil tank body, the partition dividing the hydraulic oil tank body into a coolant chamber and a hydraulic oil chamber.

[0006] A hydraulic oil inlet and a hydraulic oil chamber cover are provided at the top of the hydraulic oil chamber. A breather filter B is provided on the upper part of the side wall of the hydraulic oil chamber, and a return oil port and a return oil valve are provided on the lower part of the side wall of the hydraulic oil chamber. An oil outlet and an oil outlet valve are provided at the bottom of the hydraulic oil chamber, and a drain valve is also provided at the bottom end of the hydraulic oil chamber. A horizontal baffle is provided in the upper middle part of the left inner wall of the hydraulic oil chamber, and the horizontal baffle extends to the middle of the hydraulic oil chamber. An inclined baffle is provided at the bottom of the right inner wall of the hydraulic oil chamber.

[0007] A radiator with a low-temperature coolant outlet and a high-temperature coolant inlet is provided on the outer side of the coolant chamber; a coolant inlet and a top cover are provided on the top of the coolant chamber; a breather filter A and a high-temperature coolant outlet are provided on the upper part of the side wall of the coolant chamber; a low-temperature coolant inlet is provided on the lower part of the side wall of the coolant chamber; and a drain outlet and a drain valve are provided at the bottom of the coolant chamber. The low-temperature coolant outlet of the radiator is connected to the low-temperature coolant inlet on the outer wall of the coolant chamber through a low-temperature connecting pipe, and the high-temperature coolant inlet of the radiator is connected to the high-temperature coolant outlet on the outer wall of the coolant chamber through a high-temperature connecting pipe.

[0008] As a further description of the above technical solution: a coolant level indicator is provided at the upper part of the coolant chamber.

[0009] As a further description of the above technical solution: a hydraulic oil level indicator is provided at the upper part of the hydraulic oil chamber.

[0010] As a further description of the above technical solution: the inclined baffle is set at 45° with the bottom of the hydraulic oil chamber.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This utility model designs the hydraulic oil tank of a heavy-duty mining truck as a dual-chamber liquid-cooled circulating heat dissipation hydraulic oil tank, which can effectively prevent the high temperature generated by the hydraulic system during the production operation of heavy-duty mining trucks, ensure the normal operation of the vehicle, extend the service life of pumps, valves and hydraulic oil, improve vehicle efficiency, and reduce vehicle costs, maintenance time and maintenance personnel's labor intensity. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] like Figure 1As shown, the present invention relates to a dual-chamber liquid-cooled circulating heat dissipation hydraulic oil tank for heavy mining trucks, comprising a hydraulic oil tank body 1, characterized in that: a partition 2 is provided inside the hydraulic oil tank body 1, the partition 2 dividing the hydraulic oil tank body 1 into a coolant chamber 3 and a hydraulic oil chamber 4.

[0016] The hydraulic oil chamber 4 is provided with a hydraulic oil inlet and a hydraulic oil chamber cover 41 at the top. A breather filter B42 is provided on the upper part of the side wall of the hydraulic oil chamber 4. A return oil port 46 is opened on the lower part of the side wall of the hydraulic oil chamber 4, and a return oil check valve 47 is provided. An oil outlet and an oil outlet valve 49 are provided at the bottom of the hydraulic oil chamber 4. A drain valve 48 is also provided at the bottom end of the hydraulic oil chamber 4. A horizontal baffle 44 is provided on the upper middle part of the left inner wall of the hydraulic oil chamber 4, and the horizontal baffle 44 extends to the middle of the hydraulic oil chamber 4. An inclined baffle 45 is provided at the bottom of the right inner wall of the hydraulic oil chamber 4.

[0017] When the hydraulic oil system is working, the hydraulic oil in the hydraulic oil chamber 4 flows out through the outlet valve 49 and then flows back through the return check valve 47 and the return port 46. At this time, under the guidance of the inclined baffle 45, the hydraulic oil flows to the horizontal baffle 44, turns towards the side wall of the hydraulic oil chamber 4, and then turns towards the bottom of the hydraulic oil chamber 4 before splitting into two paths. One part flows out through the outlet valve 49 and then flows back through the return check valve 47 to form a large circulation. The other part turns towards the return check valve 47 and flows into the oil flow guided by the inclined baffle 45 to form a small circulation in the chamber.

[0018] This invention provides a radiator 36 with a low-temperature coolant outlet 37 and a high-temperature coolant inlet 34 on the outer side of the coolant cavity 3; a coolant inlet and a coolant cavity cover 31 are provided on the top of the coolant cavity 3; a breather filter A32 and a high-temperature coolant outlet 34 are provided on the upper part of the side wall of the coolant cavity 3; a low-temperature coolant inlet 37 is provided on the lower part of the side wall of the coolant cavity 3; and a drain outlet and a drain valve 39 are provided at the bottom of the coolant cavity 3. The low-temperature coolant outlet of the radiator 36 is connected to the low-temperature coolant inlet 37 on the outer wall of the coolant cavity 3 through a low-temperature connecting pipe 38, and the high-temperature coolant inlet of the radiator 36 is connected to the high-temperature coolant outlet 34 on the outer wall of the coolant cavity 3 through a high-temperature connecting pipe 35.

[0019] The present invention provides a coolant level indicator 33 at the upper part of the coolant chamber 3 and a hydraulic oil level indicator 43 at the upper part of the hydraulic oil chamber 4.

[0020] When the temperature of the hydraulic oil in hydraulic oil chamber 4 is higher than the temperature of the coolant in coolant chamber 3, under the action of heat conduction, the coolant near hydraulic oil chamber 4 rises due to the Archimedes principle, carrying heat from the high-temperature connecting pipe 35 to the radiator 36 for cooling before sinking back down and flowing back into coolant chamber 3 through the low-temperature connecting pipe 38 and the low-temperature coolant outlet, forming a circulation. Through the thermal circulation of coolant in coolant chamber 3, the hydraulic oil is cooled by heat conduction in hydraulic oil chamber 4 and coolant chamber 3, keeping the hydraulic oil within the standard range, ensuring normal vehicle operation, extending the service life of pumps, valves, and hydraulic oil, and reducing costs while increasing efficiency.

Claims

1. A dual-chamber liquid-cooled circulating heat dissipation hydraulic oil tank for heavy-duty mining trucks, comprising a hydraulic oil tank body, characterized in that: A partition is provided inside the hydraulic oil tank body, which divides the hydraulic oil tank body into a coolant chamber and a hydraulic oil chamber. The hydraulic oil chamber is provided with a hydraulic oil inlet and a hydraulic oil chamber cover at the top, a breather filter B at the upper part of the side wall of the hydraulic oil chamber, and a return oil port and a return oil valve at the lower part of the side wall of the hydraulic oil chamber. The hydraulic oil chamber is provided with an oil outlet and an oil outlet valve at the bottom, and a drain port at the bottom end of the hydraulic oil chamber. A horizontal baffle is provided at the upper middle part of the left inner wall of the hydraulic oil chamber, and the horizontal baffle extends to the middle of the hydraulic oil chamber. An inclined baffle is provided at the bottom of the right inner wall of the hydraulic oil chamber. A radiator with a low-temperature coolant outlet and a high-temperature coolant inlet is provided on the outer side of the coolant chamber; a coolant inlet and a coolant chamber cover are provided at the top of the coolant chamber; a breather filter A and a high-temperature coolant outlet are provided on the upper part of the side wall of the coolant chamber; a low-temperature coolant inlet is provided on the lower part of the side wall of the coolant chamber; and a drain outlet and a drain valve are provided at the bottom of the coolant chamber. The low-temperature coolant outlet of the radiator is connected to the low-temperature coolant inlet on the outer wall of the coolant chamber through a low-temperature connecting pipe, and the high-temperature coolant inlet of the radiator is connected to the high-temperature coolant outlet on the outer wall of the coolant chamber through a high-temperature connecting pipe.

2. The dual-chamber liquid-cooled circulating hydraulic oil tank for mining heavy-duty trucks according to claim 1, characterized in that: A coolant level indicator is provided at the upper part of the coolant chamber.

3. The dual-chamber liquid-cooled circulating hydraulic oil tank for mining heavy-duty trucks according to claim 1, characterized in that: A hydraulic oil level indicator is provided at the upper part of the hydraulic oil chamber.

4. The dual-chamber liquid-cooled circulating hydraulic oil tank for mining heavy-duty trucks according to claim 1, characterized in that: The inclined baffle is set at a 45° angle to the bottom of the hydraulic oil chamber.

Images