A rod mill large gear spraying device

Abstract

This utility model discloses a spray device for the large gear of a rod mill, including an air compressor with an air outlet and a lubrication pump with an oil tank and an oil outlet. The oil outlet is connected to an oil inlet hose, which is connected to a progressive distributor with an oil inlet, several air inlets, and several oil spraying ends. The air outlet is connected to a transfer pipe with several gas pressure regulating valves, which is connected to several air inlet hoses matching the number of gas pressure regulating valves. The air inlet hoses are connected to the air inlet ends. The progressive distributor is rotatably connected to a bracket, and a toggle component for controlling the rotation of the progressive distributor is provided on one side of the bracket. The oil spraying ends are connected to nozzles. This utility model can effectively remove harmful particles such as dust and iron filings from the gear meshing surface, preventing these impurities from entering the meshing part of the large and small gears, improving the purging effect on the large gear, ensuring the uniformity of the atomized lubricating oil sprayed from the nozzles, and improving the lubrication effect of the lubricating oil on the large gear of the rod mill.

Description

Technical Field

[0001] This utility model relates to the field of rod mill lubrication technology, and in particular to a spray device for the large gear of a rod mill. Background Technology

[0002] A rod mill is a type of mill in which the grinding media, steel rods, are loaded inside the mill body. Rod mills are generally wet overflow type and can be used as a primary open-circuit grinding mill, widely used in primary grinding operations in artificial sand and gravel plants, mineral processing plants, chemical plants, and power plants. The rod mill is driven by a motor through a reducer and peripheral large gears, or by a low-speed synchronous motor directly through peripheral large gears, which drives the cylinder to rotate. The cylinder contains appropriate grinding media—steel rods. Under the action of centrifugal force and friction within the cylinder, the steel rods are lifted to a certain height and fall in a throwing or cascading manner. The material to be ground continuously enters the cylinder through the feed inlet, is crushed by the moving steel rods, and is discharged from the machine by the overflow and continuous feeding force. To ensure stable operation of the rod mill, it is necessary to perform oil lubrication on the large gear during operation to reduce wear between the large and small gears.

[0003] A patent document with publication number CN222122188U discloses a "lubrication system for the friction pair of large and small gears in a rod mill." This system utilizes an oil tank to separate a recovered oil-water mixture into layers. A pump then delivers the upper layer of lubricating oil to an oil spraying assembly for spraying, thus removing water from the lubricating oil and improving lubrication of the large and small gears in the rod mill. However, in this technical solution, the oil spraying assembly includes an arc-shaped plate and multiple nozzles. The arc-shaped structure is not conducive to blowing away harmful particles such as dust and iron filings from the meshing surfaces of the large and small gears. The blown-away harmful particles easily re-adhere to the arc-shaped plate and the corresponding meshing surface of the large gear, resulting in poor blowing efficiency. Simultaneously, when the pump delivers lubricating oil to the nozzles, the unstable operation of the pump and the high viscosity of the lubricating oil cause uneven spraying, leading to poor lubrication of the large gear in the rod mill. Utility Model Content

[0004] To address the technical problem of poor purging and lubrication effects of the large gear in existing rod mills, this utility model provides the following technical solution.

[0005] This utility model discloses a spray device for a large gear of a rod mill, comprising an air compressor with an air outlet and a lubrication pump with an oil tank and an oil outlet. The oil outlet is connected to an oil inlet hose, which is connected to a progressive distributor with an oil inlet, several air inlets, and several oil spraying ends. The air outlet is connected to a transfer pipe with several gas pressure regulating valves, which is connected to several air inlet hoses matching the number of gas pressure regulating valves. The air inlet hoses are connected to the air inlet ends. The progressive distributor is rotatably connected to a bracket, and a toggle component for controlling the rotation of the progressive distributor is provided on one side of the bracket. The oil spraying ends are connected to nozzles.

[0006] As a further technical solution, the bracket includes a base plate fixed to one side of the large gear and a first vertical plate and a second vertical plate located on both sides of the base plate. The progressive distributor is fixedly connected to a first fixed shaft and a second fixed shaft that are rotatably connected to the upper part of the first vertical plate and the upper part of the second vertical plate, respectively.

[0007] As a further technical solution, the actuating component includes a fixed plate fixed to one side of the first vertical plate and an electric push rod hinged to the upper part of the fixed plate. The output end of the electric push rod is hinged to an actuating rod fixedly connected to the first fixed shaft.

[0008] As a further technical solution, the oil inlet hose has a rigid pipe section connected to the oil inlet end on the side near the oil inlet end, and the rigid pipe section is equipped with a solenoid valve.

[0009] As a further technical solution, the adapter pipe is a four-way pipe, and the three ports on the side of the adapter pipe away from the gas outlet are all connected to a gas pressure regulating valve.

[0010] As a further technical solution, the lubrication pump is an electric lubrication pump or a pneumatic lubrication pump.

[0011] The beneficial effects of this invention are as follows: The compressed air from the air compressor is ejected from the nozzle, which can clean the large gear. The actuating component drives the progressive distributor and nozzle to rotate, effectively removing dust, iron filings, and other harmful particles from the gear meshing surface. This prevents these impurities from entering the meshing area of ​​the large and small gears, improving the cleaning effect on the large gear. Simultaneously, lubricating oil and compressed air merge in the progressive distributor and are ejected from the nozzle. The high-speed flow of the compressed air atomizes the lubricating oil, turning it into fine droplets that mix with the air to form an oil mist. This mist is then evenly sprayed onto the meshing surface of the large and small gears through the nozzle, forming a uniform and resilient lubricating oil film of a certain thickness. This ensures the uniformity of the atomized lubricating oil sprayed from the nozzle, providing effective lubrication for the large gear of the rod mill, improving transmission efficiency, and extending the service life of the large gear. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the large gear spraying device for the rod mill of this utility model;

[0013] Figure 2 This is a schematic diagram of the actuating component of the large gear spray device for a rod mill according to this utility model;

[0014] Figure 3 This is a schematic diagram of the progressive distributor connection of the large gear spray device for a rod mill according to this utility model;

[0015] In the diagram: 1-Lubrication pump; 101-Oil reservoir; 102-Oil outlet; 2-Oil inlet hose; 201-Hard hose section; 202-Solenoid valve; 3-Progressive distributor; 301-Oil inlet end; 302-Air inlet end; 303-Injection end; 304-First fixed shaft; 305-Second fixed shaft; 4-Air compressor; 401-Air outlet end; 5-Adapter pipe; 6-Air inlet hose; 7-Gas pressure regulator; 8-Bracket; 801-Base plate; 802-First vertical plate; 803-Second vertical plate; 9-Actuating component; 901-Fixed plate; 902-Electric push rod; 903-Actuating rod; 10-Nozzle. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0017] In the description of this utility model, it should be understood that the terms "upper" and "lower" are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0018] like Figure 1As shown, this utility model discloses a spray device for the large gear of a rod mill, including an air compressor 4 with an air outlet 401. The air compressor 4 is a conventional air compressor. It also includes a lubrication pump 1 with an oil reservoir 101 and an oil outlet 102. The lubrication pump 1 can be an electric lubrication pump or a pneumatic lubrication pump. The oil reservoir 101 pre-stores lubricating oil, which is discharged from the oil outlet 102 under the action of the lubrication pump 1. The lubrication pump 1 and the air compressor 4 are located on one side of the rod mill, ensuring that they do not interfere with the normal operation of the rod mill. Furthermore, the control of the lubrication pump 1, the air compressor 4, and other components such as the solenoid valve 202 described below all utilize existing technology, which will not be elaborated upon in this utility model.

[0019] like Figure 1 and Figure 2 As shown, in a preferred embodiment, the oil outlet 102 is connected to an oil inlet hose 2, which is connected to a progressive distributor 3. The air outlet 401 of the air compressor 4 is also connected to the progressive distributor 3. In this embodiment, the progressive distributor 3 has one oil inlet 301, three air inlets 302, and three oil injection ends 303. One end of the oil inlet hose 2 is connected to the oil inlet 301. The side of the oil inlet hose 2 near the oil inlet 301 has a rigid pipe section 201 connected to the oil inlet 301. The rigid pipe section 201 is equipped with a solenoid valve 202, which controls the entry and exit of lubricating oil. Simultaneously, the three oil injection ends 303 are each connected to a nozzle 10, and the three air inlets 302 are each independently connected to the air outlet 401. Therefore, the compressed air from the air compressor 4 can purge the large gear through the three nozzles 10, and after the lubricating oil enters the progressive distributor 3, the compressed air can also atomize the lubricating oil, so that the atomized lubricating oil can spray lubricate the large gear of the rod mill.

[0020] In a preferred embodiment, the outlet 401 is connected to a transfer pipe 5 equipped with three gas pressure regulating valves 7. The transfer pipe 5 is connected to three air inlet hoses 6 matching the number of gas pressure regulating valves 7. In this embodiment, the transfer pipe 5 is a four-way pipe, one end of which is connected to the outlet 401. Each of the three ports on the side of the transfer pipe 5 away from the outlet 401 is connected to a gas pressure regulating valve 7. The gas pressure regulating valves 7 can control the pressure of the compressed air in the outlet 401, so that the pressure and flow rate of the compressed air introduced into each air inlet hose 6 are consistent. One end of the air inlet hose 6 is connected to the air inlet 302. Each air inlet 302 is connected to each oil injection end 303, and the large gear of the rod mill can be purged through each nozzle 10.

[0021] like Figure 2 and Figure 3As shown, in a preferred embodiment, the progressive distributor 3 is rotatably connected to a bracket 8, and a toggle component 9 for controlling the rotation of the progressive distributor 3 is provided on one side of the bracket 8. In this embodiment, the progressive distributor 3 adopts an existing internal structure; however, a first fixed shaft 304 and a second fixed shaft 305 are fixedly provided on both sides of the progressive distributor 3, respectively. The bracket 8 includes a base plate 801 fixed to one side of the large gear of the rod mill. The base plate 801 is fixed to the ground on one side of the rod mill. A first vertical plate 802 and a second vertical plate 803 are fixedly provided on the upper parts of both sides of the base plate 801. The first fixed shaft 304 and the second fixed shaft 305 on both sides of the progressive distributor 3 are rotatably connected to the upper parts of the first vertical plate 802 and the upper parts of the second vertical plate 803, respectively. The toggle component 9 is fixed to one side of the first vertical plate 802 and drives the progressive distributor 3 to rotate.

[0022] In a preferred embodiment, the actuating component 9 includes a fixed plate 901 fixed to one side of the first vertical plate 802 and an electric push rod 902 hinged to the upper part of the fixed plate 901. The output end of the electric push rod 902 is hinged to a toggle rod 903. The toggle rod 903 is a plate with a cuboid structure as shown in the figure. The lower end of the toggle rod 903 is hinged to the output end of the electric push rod 902, and the upper end of the toggle rod 903 is fixedly connected to the first fixed shaft 304. Thus, the electric push rod 902 can push the toggle rod 903 and the first fixed shaft 304 to rotate, thereby driving the progressive distributor 3 and the nozzle 10 to rotate. The nozzle 10 can perform longitudinal multi-directional blowing and spray lubrication on the large gear.

[0023] The working process of this utility model is as follows: First, before the oil spraying begins, the air compressor 4 starts, allowing compressed gas to enter the nozzle 10 through the gas pressure regulating valve 7 and the intake hose 6. The compressed air is then sprayed out from the nozzle 10 to purge the large gear. During the purging process, the actuating component 9 drives the progressive distributor 3 and the nozzle 10 to rotate. The purging time is 3-5 rotations of the large gear. Second, after the purging is completed, the lubrication pump 1 starts working, and the lubricating oil is evenly distributed through the progressive distributor 3. The progressive distributor 3 ensures that each lubrication point receives a relatively balanced amount of oil, allowing the lubricating oil to be delivered to each nozzle 10. Simultaneously, at the nozzle 10... At the nozzle 10, the oil mist formed by the mixing of lubricating oil and compressed air is evenly sprayed onto the meshing surfaces of the large and small gears. The spraying lubrication time is 2-3 rotations of the large gear. Finally, after the oil mist spraying time ends, the solenoid valve 202 closes, the lubrication pump 1 stops, and the compressed air continues to blow the lubricating oil on the large gear through the nozzle 10, making the lubricating oil more evenly distributed on the gear. After the blowing is completed, the device enters an interval time, and all components stop working. After the interval time of 2-3 hours, the device will start working again according to the predetermined program, and so on, periodically providing lubrication for the large gear.

[0024] The preferred embodiments and examples of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments and examples. Within the scope of knowledge possessed by those skilled in the art, various changes or equivalent substitutions can be made without departing from the concept of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A spray device for a large gear of a rod mill, comprising an air compressor (4) with an air outlet (401) and a lubrication pump (1) with an oil reservoir (101) and an oil outlet (102), characterized in that: The oil outlet (102) is connected to an oil inlet hose (2), the oil inlet hose (2) is connected to a progressive distributor (3) having an oil inlet end (301), several air inlets (302) and several oil injection ends (303), the air outlet end (401) is connected to a transfer pipe (5) having several gas pressure regulating valves (7), the transfer pipe (5) is connected to several air inlet hoses (6) matching the number of gas pressure regulating valves (7), the air inlet hoses (6) are connected to the air inlet end (302), the progressive distributor (3) is rotatably connected to a bracket (8), one side of the bracket (8) is provided with a toggle component (9) for controlling the rotation of the progressive distributor (3), and the oil injection end (303) is connected to a nozzle (10).

2. The rod mill large gear spraying device according to claim 1, characterized in that: The bracket (8) includes a base plate (801) fixed to one side of the large gear and a first vertical plate (802) and a second vertical plate (803) located on both sides of the base plate (801). The progressive distributor (3) is fixedly connected to a first fixed shaft (304) and a second fixed shaft (305) respectively rotatably connected to the upper part of the first vertical plate (802) and the upper part of the second vertical plate (803).

3. The rod mill large gear spraying device according to claim 2, characterized in that: The actuating component (9) includes a fixed plate (901) fixed to one side of the first vertical plate (802) and an electric push rod (902) hinged to the upper part of the fixed plate (901). The output end of the electric push rod (902) is hinged to an actuating rod (903) fixedly connected to the first fixed shaft (304).

4. The rod mill large gear spraying device according to claim 1, characterized in that: The oil inlet hose (2) has a rigid pipe section (201) connected to the oil inlet end (301) on the side near the oil inlet end (301), and the rigid pipe section (201) is equipped with a solenoid valve (202).

5. The rod mill large gear spraying device according to claim 1, characterized in that: The adapter pipe (5) is a four-way pipe, and the three ports on the side of the adapter pipe (5) away from the gas outlet (401) are all connected to a gas pressure regulating valve (7).

6. The rod mill large gear spraying device according to claim 1, characterized in that: The lubrication pump (1) is an electric lubrication pump or a pneumatic lubrication pump.

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