Internal cooling device for gear cover of ball mill

Abstract

The utility model discloses a ball mill gear cover internal cooling device which comprises an unpowered wind ball, a cooling oil pipe, a platinum thermal resistor, an electromagnetic valve, a temperature controller and a lubricating oil station, the unpowered wind ball is installed on the top of a gear cover through a fastener, the platinum thermal resistor is fixed on the gear cover, and the temperature controller is connected with the electromagnetic valve. The cooling oil pipes are fixed to the bottom of the unpowered wind ball through welding, evenly distributed at the bottom of the unpowered wind ball and connected with the lubricating oil station, and low-temperature lubricating oil circulates in the cooling oil pipes. Two ends of the temperature controller are connected with the platinum thermal resistor and the electromagnetic valve; the platinum thermistor detects the temperature in the gear cover in real time and transmits a detection result to the temperature controller, and the temperature controller controls the electromagnetic valve to work. When the ball mill grinds aluminum oxide ores, the internal temperature of the gear cover of the ball mill is effectively reduced, so that the large gear device can rotate normally, and the device is economical and efficient.

Description

Technical Field

[0001] The utility model relates to a water-cooling-assisted, unpowered intelligent ventilation and cooling device for a gear cover of a ball mill, belonging to the technical field of ball mill ventilation. Background Art

[0002] During operation, alumina ball mills generate significant heat when the alumina ore combines with process water inside the mill. Some of this heat is transferred to the gear housing. When the temperature inside the gear housing rises significantly, the large gears and lubricating oil inside are susceptible to deformation or failure, affecting the mill's proper operation. Therefore, a technology that effectively cools the gear housing is urgently needed. Summary of the Invention

[0003] The technical problem to be solved by the utility model is to provide an internal cooling device for a gear cover of a ball mill in view of the defects in the prior art, so as to reduce the internal temperature of the gear cover of the mill.

[0004] To solve this technical problem, the utility model provides an internal cooling device for a ball mill gear cover, comprising an unpowered wind ball, a cooling oil pipe, a platinum thermal resistor, an electromagnetic valve, a temperature controller and a lubricating oil station, wherein the unpowered wind ball is mounted on the top of the gear cover by fasteners, the platinum thermal resistor is fixed on the gear cover, the cooling oil pipe is fixed to the bottom of the unpowered wind ball by welding and is evenly distributed on the bottom of the unpowered wind ball, the cooling oil pipe is connected to the lubricating oil station, and low-temperature lubricating oil flows inside the cooling oil pipe; an electromagnetic valve is provided at the end of the cooling oil pipe, and the platinum thermal resistor and the electromagnetic valve are connected at both ends of the temperature controller; the platinum thermal resistor detects the internal temperature of the gear cover in real time and transmits the detection result to the temperature controller, and the temperature controller controls the operation of the electromagnetic valve.

[0005] The solenoid valve, cooling oil pipe and lubricating oil station form a cooling circulation oil circuit with lubricating oil circulating inside. The solenoid valve controls the on-off of the low-temperature lubricating oil circuit according to the instructions issued by the temperature controller.

[0006] The cooling oil pipes are placed in three layers on the upper and lower sides.

[0007] The lubricating oil station stores and cools the lubricating oil in the oil circuit, and directly borrows the oil station in the gear cover and large gear lubrication system.

[0008] Beneficial effects: The utility model ensures that when the ball mill is grinding alumina ore, the internal temperature of the mill gear cover is effectively reduced, so that the large gear device can rotate normally, which is economical and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic front view of the structure of the utility model;

[0010] Figure 2 For this utility model Figure 1An enlarged schematic diagram of part I;

[0011] Figure 3 For this utility model Figure 2 AA cross-sectional view of .

[0012] In the figure: 1. Unpowered wind ball; 2. Gear cover; 3. Cooling oil pipe; 4. Platinum thermal resistor; 5. Solenoid valve; 6. Temperature controller; 7. Lubricating oil station. DETAILED DESCRIPTION

[0013] The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0014] like Figure 1-Figure 3 As shown, the utility model provides an internal cooling device for a ball mill gear cover, comprising an unpowered wind ball 1, a cooling oil pipe 3, a platinum thermal resistor 4, an electromagnetic valve 5, a temperature controller 6 and a lubricating oil station 7. The unpowered wind ball 1 is installed on the top of the gear cover by fasteners, does not require any power, and only relies on the internal and external gas pressure difference of the gear cover 2 to realize the hot and cold air exchange inside and outside the gear cover 2, thereby reducing the internal temperature of the gear cover 2; the platinum thermal resistor 4 is fixed on the gear cover, measures the internal temperature of the gear cover in real time and transmits the detection result to the temperature controller 6; the cooling oil pipe 3 is fixed to the bottom of the unpowered wind ball 1 by welding and is evenly distributed on the bottom of the unpowered wind ball 1. The cooling oil pipe 3 is connected to the lubricating oil station 7 to form an oil circuit, and low-temperature lubricating oil circulates inside it; a solenoid valve 5 is provided at the end of the cooling oil pipe 3, and the platinum thermal resistor 4 and the electromagnetic valve 5 are connected at both ends of the temperature controller 6; the platinum thermal resistor 4 detects the internal temperature of the gear cover 2 in real time and transmits the detection result to the temperature controller 6, and the temperature controller 6 is an intelligent temperature controller that controls the operation of the electromagnetic valve 5. When the temperature inside gear housing 2 rises, the hot air inside rises and flows outward from the upper hemisphere of the non-powered wind ball 1, while cooler air from the outside flows inward from the lower hemisphere of the non-powered wind ball 1, driving the wind ball blades to rotate. Simultaneously, as the blades rotate, the air velocity around the blades increases, reducing the air pressure around the blades. This creates a pressure differential with the air inside gear housing 2, accelerating the extraction of hot air from inside gear housing 2. When the mill processes alumina ore, significant heat is generated inside the mill, causing the temperature inside gear housing 2 to rise. A platinum thermal resistor 4 monitors the temperature changes inside gear housing 2 in real time and transmits the results to a temperature controller 6. When the temperature inside gear housing 2 falls below 30°C, the temperature controller 6 closes the solenoid valve 5, preventing the flow of low-temperature lubricating oil. Ventilation and cooling rely solely on the non-powered wind ball 1, reducing energy consumption. When the temperature inside gear housing 2 rises above 30°C, the temperature controller 6 opens the solenoid valve 5, allowing the flow of low-temperature lubricating oil to assist the non-powered wind ball 1 in ventilating and cooling the interior of gear housing 2.

[0015] The solenoid valve 5 , the cooling oil pipe 3 and the lubricating oil station 7 form a cooling circulation oil circuit, in which lubricating oil circulates. The solenoid valve 5 controls the on-off of the low-temperature lubricating oil circuit according to the instructions issued by the temperature controller 6 .

[0016] The cooling oil pipe 3 is provided with three layers on the top and bottom. When the oil path is unobstructed, low-temperature lubricating oil circulates inside the cooling oil pipe 3, which can absorb the heat energy of the air around the cooling oil pipe 3 through heat transfer, thereby reducing the temperature of the air around the cooling oil pipe 3. The cooling oil pipe 3 is provided with three layers on the top and bottom, thereby improving the air cooling efficiency.

[0017] The lubricating oil station 7 stores and cools the lubricating oil in the oil circuit, directly using the oil station in the gear cover large gear lubrication system to reduce the device cost. In addition, using lubricating oil instead of water as the conducting medium can also prevent the gear cover from leaking and affecting the operation of the large gear.

[0018] The utility model can keep the interior of the gear cover at an appropriate temperature, thereby preventing the internal large gear and lubricating oil from being deformed or failing due to heat. The temperature controller 6 can automatically control the operation of the ventilation and cooling device according to the detection result of the platinum thermal resistor 4, thereby keeping the interior of the gear cover at an appropriate temperature and ensuring the normal operation of the large gear device.

[0019] The above embodiments of the present invention are merely illustrative and not exclusive. All modifications within the scope of the present invention or equivalent to the scope of the present invention are encompassed by the present invention.

Claims

1. A ball mill gear cover internal cooling device, characterized by: The invention comprises an unpowered wind ball (1), a cooling oil pipe (3), a platinum thermal resistor (4), an electromagnetic valve (5), a temperature controller (6) and a lubricating oil station (7). The unpowered wind ball (1) is mounted on the top of a gear cover (2) by means of fasteners, the platinum thermal resistor (4) is fixed on the gear cover (2), the cooling oil pipe (3) is fixed to the bottom of the unpowered wind ball (1) by means of welding and is evenly distributed on the bottom of the unpowered wind ball (1), the cooling oil pipe (3) is connected to the lubricating oil station (7), and low-temperature lubricating oil circulates therein; an electromagnetic valve (5) is provided at the end of the cooling oil pipe (3), and the two ends of the temperature controller (6) are connected to the platinum thermal resistor (4) and the electromagnetic valve (5); the platinum thermal resistor (4) detects the internal temperature of the gear cover (2) in real time and transmits the detection result to the temperature controller (6), and the temperature controller (6) controls the operation of the electromagnetic valve (5).

2. The ball mill gear cover internal cooling device according to claim 1, characterized in that: The solenoid valve (5), the cooling oil pipe (3) and the lubricating oil station (7) form a cooling circulation oil circuit, in which lubricating oil circulates. The solenoid valve (5) controls the on-off of the low-temperature lubricating oil circuit according to the instructions issued by the temperature controller (6).

3. The ball mill gear cover internal cooling device according to claim 1, characterized in that: The cooling oil pipes (3) are arranged in three layers on the upper and lower sides.

4. The ball mill gear cover internal cooling device according to any one of claims 1 to 3, characterized in that: The lubricating oil station (7) stores and cools the lubricating oil in the oil circuit, and directly uses the oil station in the gear cover and large gear lubrication system.

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