A vertical mill lubrication system

Abstract

The utility model belongs to the technical field of powder grinding equipment, specifically discloses a vertical mill lubricating system, include: installation bottom plate, liquid cooler and motor pump group, liquid cooler and motor pump group all install on the upper surface of installation bottom plate, liquid cooler is hollow, and the outer wall of liquid cooler is provided with the fin of heat dissipation, be provided with cooling pipeline in liquid cooler, the import of motor pump group is connected with liquid inlet pipe. Motor pump group, motor pump group is the power core of this lubricating system, undertakes the key task of providing the initial power for lubricating oil circulation. The filter is the key component of the core moving part of the mill to prevent abrasive wear damage, the metal swarf, dust particles, sealing material debris and other solid pollutants mixed in the oil flow through the filter under the drive of the motor pump group are intercepted efficiently. The cooling system is the heat management center of the lubricating system, and its core function is to maintain the lubricating oil working in the best viscosity temperature interval.

Description

Technical Field

[0001] This utility model relates to the field of grinding equipment technology, specifically a lubrication system for a vertical mill. Background Technology

[0002] Vertical grinding mills are core grinding equipment widely used in modern industrial production, particularly in industries such as cement, metallurgy, and power. Their core structure consists of a massive grinding disc and grinding rollers placed on it. During operation, they withstand enormous grinding pressure. Due to the direct metal-to-metal (or through a layer of material) contact between the grinding disc and rollers, and the immense weight and loading forces of the equipment, the lubricating oil film between their contact surfaces can be completely crushed when stationary, resulting in typical boundary lubrication or even dry friction. Furthermore, the lubrication between key friction pairs such as the roller bearings is a crucial factor determining the mill's lifespan.

[0003] Good lubrication has a significant impact on the lifespan of bearings and even the entire equipment. It directly affects the machine's service life and operating rate. Therefore, the injected lubricating oil must be clean and the seal must be good. Conventional internal oil storage lubrication is greatly affected by the quality of the oil and is difficult to effectively remove the heat generated by the equipment. Impurities in the oil can also damage the equipment. Utility Model Content

[0004] The purpose of this invention is to provide a lubrication system for a vertical mill to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a vertical mill lubrication system, comprising:

[0006] Install base plate, liquid cooler and motor pump unit;

[0007] The liquid cooler and the motor pump set are both mounted on the upper surface of the mounting base plate. The liquid cooler is hollow and has heat dissipation fins on its outer wall. Cooling pipes are installed inside the liquid cooler.

[0008] The inlet of the motor pump unit is connected to the inlet pipe, the outlet of the motor pump unit is connected to the outlet pipe, the end of the outlet pipe away from the motor pump unit is connected to the inlet of the filter, the outlet of the filter is connected to the filter output pipe, and a differential pressure transmitter is installed between the inlet and outlet of the filter.

[0009] The outer wall of the liquid cooler is connected to a cooling inlet pipe and a cooling outlet pipe, which are respectively connected to the two ends of the cooling pipe.

[0010] Preferably, the upper outer side of the liquid cooler is connected to a water outlet pipe, and the lower outer wall of the liquid cooler is connected to a water inlet pipe. The ends of the water outlet pipe and the water inlet pipe are respectively connected to a water outlet connector and a water inlet connector.

[0011] Preferably, a three-way valve is connected between the cooling inlet pipe and the cooling outlet pipe, and the other port of the three-way valve is connected to the output pipe.

[0012] Preferably, an output branch pipe is connected to the output pipe, and both the output branch pipe and the output pipe are connected to liquid outlet connectors at their ends. Switch valves are installed on both the output branch pipe and the output pipe.

[0013] Preferably, a flow meter is installed on the outlet pipe, and a thermometer is installed on the output pipe and the output branch pipe, respectively.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] The electric pump unit is the power core of this lubrication system, responsible for providing the initial power for lubricating oil circulation. The filter is a crucial component protecting the core moving parts of the mill from abrasive wear. As the oil flows through the filter driven by the electric pump unit, solid contaminants such as metal shavings, dust particles, and sealant debris are efficiently trapped. The cooling system is the thermal management center of the lubrication system, its core function being to maintain the lubricating oil within its optimal viscosity-temperature range. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a top view of the structure of this utility model.

[0018] In the diagram: 1. Mounting base plate; 2. Motor pump set; 3. Inlet pipe; 4. Outlet pipe; 5. Flow meter; 6. Filter; 7. Filter output pipe; 8. Differential pressure transmitter; 9. Cooling inlet pipe; 10. Three-way valve; 11. Cooling outlet pipe; 12. Liquid cooler; 13. Water outlet pipe; 14. Water inlet pipe; 15. Output pipe; 16. Thermometer 1; 17. Outlet connector; 18. Switch valve; 19. Output branch pipe; 20. Thermometer 2; 21. Water outlet connector; 22. Water inlet connector. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] Example 1:

[0022] Please see Figure 1-2 This utility model provides a technical solution: a vertical mill lubrication system, comprising: a mounting base plate 1, a liquid cooler 12, and a motor pump unit 2;

[0023] The liquid cooler 12 and the motor pump set 2 are both mounted on the upper surface of the mounting base plate 1. The liquid cooler 12 is hollow and has heat dissipation fins on its outer wall. Cooling pipes are installed inside the liquid cooler 12. The inlet of the motor pump set 2 is connected to the liquid inlet pipe 3, and the outlet of the motor pump set 2 is connected to the liquid outlet pipe 4. The end of the liquid outlet pipe 4 away from the motor pump set 2 is connected to the inlet of the filter 6. The outlet of the filter 6 is connected to the filter output pipe 7. A differential pressure transmitter 8 is installed between the inlet and outlet of the filter 6. Cooling inlet pipe 9 and cooling outlet pipe 11 are respectively connected to the outer wall of the liquid cooler 12. The cooling inlet pipe 9 and cooling outlet pipe 11 are respectively connected to the two ends of the cooling pipes.

[0024] Analysis of the above: During operation, the lubricating oil from various locations of the external vertical mill enters the lubrication system through the inlet pipe 3. The motor pump unit 2 draws the lubricating oil through the inlet pipe 3 and outlet pipe 4, outputting it into the filter 6. This efficiently traps solid contaminants such as metal shavings, dust particles, and sealing material debris from the lubricating oil. The differential pressure transmitter 8 monitors the inlet and outlet lubricating oil pressure of the filter 6. When the filter element of the filter 6 accumulates too many impurities on its surface, causing the resistance (i.e., differential pressure) in the flow channels to increase to a preset alarm threshold, the differential pressure transmitter 8 will activate, sending an electrical or mechanical indication signal. This signal triggers the alarm indicator light or prompt message of the control system, clearly informing maintenance personnel that the filter element must be cleaned or replaced promptly to restore the system's normal filtration capacity and flow efficiency, preventing abnormal system pressure or poor lubrication caused by blockage.

[0025] The filtered hydraulic oil is output to the cooling inlet pipe 9 through the filter output pipe 7. The liquid cooler 12 cools the lubricating oil entering the cooling pipe, and the cooled lubricating oil is output through the cooling outlet pipe 11.

[0026] Example 2:

[0027] Please see Figure 1-2 The present invention provides a technical solution: the upper outer side of the liquid cooler 12 is connected to a water outlet pipe 13, the lower outer wall of the liquid cooler 12 is connected to a water inlet pipe 14, and the ends of the water outlet pipe 13 and the water inlet pipe 14 are respectively connected to a water outlet connector 21 and a water inlet connector 22.

[0028] Analysis of the above content: Inside the liquid cooler 12, cold water cools the lubricating oil in the cooling pipe. The cold water enters from the inlet pipe 14 and comes into contact with the copper cooling pipe, absorbing heat from the cooling pipe and the cooling pipe. After absorbing heat, the water temperature rises and is then output from the outlet pipe 13.

[0029] Example 3:

[0030] Please see Figure 1-2 The present invention provides a technical solution: a three-way valve 10 is connected between the cooling inlet pipe 9 and the cooling outlet pipe 11, and the other port of the three-way valve 10 is connected to the output pipe 15.

[0031] Analysis of the above content: The three-way valve 10 here is a two-inlet and one-outlet valve. By switching, the output pipe 15 is connected to the outlet of the three-way valve 10, and the cooling inlet pipe 9 and the cooling outlet pipe 11 are both connected to the inlet of the three-way valve 10.

[0032] When the lubricating oil temperature is high and cooling is required, the inlet of the cooling inlet pipe 9 into the three-way valve 10 is closed, and the inlet of the cooling outlet pipe 11 into the three-way valve 10 is opened. The lubricating oil that needs cooling enters the cooling pipe of the liquid cooler 12 through the cooling inlet pipe 9 for cooling, and then is output from the cooling outlet pipe 11.

[0033] When the lubricating oil temperature is low and cooling is not required, the inlet of the three-way valve 10 is opened and the inlet of the cooling inlet pipe 9 is closed, based on the control of the three-way valve 10. The lubricating oil enters the cooling outlet pipe 11 directly through the three-way valve 10 via the cooling inlet pipe 9. At this stage, although the cooling inlet pipe 9 is still connected to the cooling pipeline, no more hydraulic oil will enter the cooling pipeline.

[0034] Example 4:

[0035] Please see Figure 1-2 The present invention provides a technical solution: an output branch pipe 19 is connected to the output pipe 15, and liquid outlet connectors 17 are connected to the ends of both the output branch pipe 19 and the output pipe 15. Switch valves 18 are installed on both the output branch pipe 19 and the output pipe 15.

[0036] Analysis of the above content: The switch valve 18 can control the on / off state of the output branch pipe 19 and the output pipe 15, or switch the use of the output branch pipe 19 and the output pipe 15. The output branch pipe 19 and the output pipe 15 can be connected to different vertical mills according to the usage requirements, providing lubricating oil filtration and cooling for multiple vertical mills.

[0037] Example 5:

[0038] Please see Figure 1-2 The present invention provides a technical solution: a flow meter 5 is installed on the outlet pipe 4, and a thermometer 16 and a thermometer 20 are respectively installed on the outlet pipe 15 and the outlet branch pipe 19.

[0039] Analysis of the above content: Flow meter 5, thermometer 16, and thermometer 20 are used to monitor parameters such as lubricating oil flow and temperature, respectively.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model, and no reference numerals in the claims should be considered as limiting the scope of the claims.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lubrication system for a vertical mill, characterized in that, include: Mounting base plate (1), liquid cooler (12) and motor pump unit (2); The liquid cooler (12) and the motor pump group (2) are both installed on the upper surface of the mounting base plate (1). The liquid cooler (12) is hollow and has heat dissipation fins on its outer wall. Cooling pipes are installed inside the liquid cooler (12). The inlet of the motor pump set (2) is connected to the liquid inlet pipe (3), the outlet of the motor pump set (2) is connected to the liquid outlet pipe (4), the end of the liquid outlet pipe (4) away from the motor pump set (2) is connected to the inlet of the filter (6), the outlet of the filter (6) is connected to the filter output pipe (7), and a differential pressure transmitter (8) is installed between the inlet and outlet of the filter (6). The outer wall of the liquid cooler (12) is connected to a cooling inlet pipe (9) and a cooling outlet pipe (11), which are respectively connected to the two ends of the cooling pipe.

2. The lubrication system for a vertical mill according to claim 1, characterized in that: The liquid cooler (12) is connected to an outlet pipe (13) on its upper outer side and an inlet pipe (14) on its lower outer wall. The outlet pipe (13) and the inlet pipe (14) are respectively connected to an outlet connector (21) and an inlet connector (22).

3. The lubrication system for a vertical mill according to claim 1, characterized in that: A three-way valve (10) is connected between the cooling inlet pipe (9) and the cooling outlet pipe (11), and the other port of the three-way valve (10) is connected to the output pipe (15).

4. The lubrication system for a vertical mill according to claim 3, characterized in that: The output pipe (15) is connected to an output branch pipe (19), and the ends of the output branch pipe (19) and the output pipe (15) are both connected to a liquid outlet connector (17). Switch valves (18) are installed on the pipes of the output branch pipe (19) and the output pipe (15).

5. A vertical mill lubrication system according to claim 3 or 4, characterized in that: A flow meter (5) is installed on the outlet pipe (4), and a thermometer (16) and a thermometer (20) are installed on the outlet pipe (15) and the outlet branch pipe (19), respectively.

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