Automatic lubricating oil supply station for grinding roller of vertical flour mill

Abstract

The utility model relates to an automatic lubricating oil supply station for a grinding roller of a vertical flour mill, which comprises an oil tank, an oil feeding and well pump is arranged at the top of the oil tank, and an output pipeline of the oil feeding and well pump is connected with a distribution valve through an oil feeding filter and a cooler. A plurality of oil supply pipelines connected with lubricating oil input ports of the corresponding grinding roller assemblies are arranged on the distribution valve, lubricating oil output ports of the grinding roller assemblies are connected with corresponding oil pump-back pumps through oil return pipelines, and output pipelines of the oil pump-back pumps are connected with the oil tank. The lubricating oil station can provide lubricating oil and dissipate heat for the grinding wheel of the grinding roller assembly conveniently, and the lubricating oil can be recycled.

Description

Technical Field

[0001] The utility model relates to an automatic lubricating oil supply station for the grinding rollers of a vertical mill. Background Art

[0002] When a vertical mill grinds materials, the grinding wheel on the grinding roller assembly cooperates with the grinding table, so that the materials are nipped between the grinding wheel and the grinding table for grinding and pulverizing. The grinding wheel on the grinding roller assembly is rotationally connected to the grinding roller shaft through a bearing assembly, and the bearing assembly needs to be lubricated and cooled to ensure that the grinding wheel can work normally. Since the equipment of the vertical mill and the grinding roller assembly are large in volume, and the grinding wheel rotates at a high speed, the lubricating oil will heat up during operation. The existing lubrication method of applying grease can no longer meet the lubrication requirements of the grinding wheel of the grinding roller assembly. Therefore, a lubricating oil supply station that automatically supplies lubricating oil to the grinding rollers of the vertical mill alone is needed. Summary of the Utility Model

[0003] The purpose of the utility model is to provide an automatic lubricating oil supply station for the grinding rollers of a vertical mill, which is convenient for providing lubricating oil and heat dissipation for the grinding wheels of the grinding roller assembly and realizes the recycling of lubricating oil.

[0004] The technical solution of the utility model lies in: an automatic lubricating oil supply station for the grinding rollers of a vertical mill, including an oil tank, a feeding and pumping oil pump is arranged at the top of the oil tank, the output pipeline of the feeding and pumping oil pump is connected to a distribution valve through an oil supply filter and a cooler, several oil supply pipelines connected to the corresponding lubricating oil input ports of the grinding roller assemblies are arranged on the distribution valve, the lubricating oil output ports of the grinding roller assemblies are all connected to the corresponding oil pumping back pumps through return oil pipelines, and the output pipeline of the oil pumping back pump is connected to the oil tank.

[0005] Further, a pressure regulating valve is arranged on the output pipeline of the feeding and pumping oil pump, and a pressure gauge and a pressure indicator are arranged on the distribution valve.

[0006] Further, an oil return filter is arranged on the return oil pipeline.

[0007] Further, the oil pumping back pump is driven by a motor, and a regulating valve is arranged on the output pipeline of the oil pumping back pump.

[0008] Further, it further includes a base, and the oil tank and the oil pumping back pump are both installed on the base.

[0009] Further, a spare feeding and pumping oil pump is arranged on the oil tank, and a cooling fan is arranged on the cooler.

[0010] Further, a bearing installation cavity is provided inside the grinding wheel of the grinding roller assembly, and it is rotatably connected to the roller shaft through a bearing assembly. An oil inlet passage communicating with the bearing installation cavity is axially provided on the roller shaft, and an oil outlet passage communicating with the bearing installation cavity is also provided on the roller shaft.

[0011] Further, the input end of the oil inlet passage is connected to an oil supply pipeline, and the output end of the oil outlet passage is connected to an oil return pipeline.

[0012] Compared with the prior art, the present utility model has the following advantages:

[0013] 1. The lubricating oil station facilitates the supply of lubricating oil and heat dissipation for the grinding wheel of the grinding roller assembly, and realizes the recycling of lubricating oil.

[0014] 2. By providing a cooler on the lubricating oil station, the lubricating oil can be cooled well, so that the lubricating oil supplied to the grinding wheel can better lubricate the grinding wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the pipeline of the lubricating oil station of the present utility model;

[0016] Figure 2 is a schematic structural diagram of the lubricating oil station of the present utility model;

[0017] Figure 3 is a schematic structural diagram of the grinding roller of the present utility model;

[0018] In the figure: 1 - oil tank, 2 - oil extraction pump, 3 - output pipeline, 4 - oil supply filter, 5 - cooler, 6 - distribution valve, 7 - oil supply pipeline, 8 - oil return pipeline, 9 - oil return extraction pump, 10 - pressure regulating valve, 11 - pressure gauge, 12 - pressure measuring gauge, 13 - oil return filter, 14 - motor, 15 - regulating valve, 16 - base, 17 - standby oil supply and extraction pump, 18 - cooling fan, 20 - grinding roller assembly, 21 - grinding wheel, 22 - bearing assembly, 23 - roller shaft, 24 - sealing cover, 25 - oil inlet passage, 26 - oil outlet passage, 27 - lubricating oil input port, 28 - lubricating oil output port. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] To make the above features and advantages of the present utility model more understandable, specific embodiments are given below in conjunction with the accompanying drawings and described in detail as follows, but the present utility model is not limited thereto.

[0020] Reference Figures 1 to 3

[0021] A vertical mill roller automatic lubricating oil station, including an oil tank 1, a feeding and pumping oil pump 2 is arranged at the top of the oil tank. The output pipeline 3 of the feeding and pumping oil pump is connected with a distribution valve 6 through an oil feeding filter 4 and a cooler 5. A plurality of oil supply pipelines 7 connected with the lubricating oil input ports 27 of the corresponding roller assemblies 20 are arranged on the distribution valve. The lubricating oil output ports 28 of the roller assemblies are all connected with corresponding oil pumping back pumps 9 through return oil pipelines 8, and the output pipeline of the oil pumping back pump is connected with the oil tank.

[0022] In this embodiment, in order to facilitate the adjustment of pressure, a pressure regulating valve 10 is arranged on the output pipeline of the feeding and pumping oil pump. A pressure gauge 11 and a pressure gauge 12 are arranged on the distribution valve to read the oil supply pressure.

[0023] In this embodiment, a return oil filter 13 is arranged on the return oil pipeline to filter the returned lubricating oil.

[0024] In this embodiment, the oil pumping back pump is driven by a motor 14, and a regulating valve 15 is arranged on the output pipeline of the oil pumping back pump to regulate the return oil flow rate. The output pipeline of the oil pumping back pump is connected with the side wall of the oil tank.

[0025] In this embodiment, it further includes a base 16, and the oil tank and the oil pumping back pump are both installed on the base. The oil feeding filter, the cooler and the distribution valve are all installed on the top of the oil tank.

[0026] In this embodiment, a standby feeding and pumping oil pump 17 is further arranged on the oil tank for standby. A cooling fan 18 is arranged on the cooler, which helps the cooler to quickly cool down the lubricating oil.

[0027] In this embodiment, a bearing installation cavity is arranged in a grinding wheel 21 of the roller assembly and is rotatably connected with a roller shaft 23 through a bearing assembly 22. A sealing ring structure is arranged between the grinding wheel and the roller shaft. A cover 24 for covering the bearing installation cavity is arranged on the grinding wheel. An oil inlet channel 25 communicated with the bearing installation cavity is axially arranged on the roller shaft. An oil outlet channel 26 communicated with the bearing installation cavity is also axially arranged on the roller shaft. A plurality of oil outlet holes communicated with the oil outlet pipeline are arranged on the roller shaft. The input end of the oil inlet channel is connected with the oil supply pipeline, and the output end of the oil outlet channel is connected with the return oil pipeline, so as to realize the lubricating oil supply to the roller and the recycling of the lubricating oil.

[0028] If the present utility model discloses or involves components or structural members that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, using bolts or screws), or can also be understood as: a non-detachable fixed connection (for example, riveting, welding). Of course, the mutual fixed connection can also be replaced by an integral structure (for example, manufactured by integral casting) (except when it is obviously impossible to use the integral forming process).

[0029] In addition, unless otherwise stated, the terms used to represent positional relationships or shapes in any of the technical solutions disclosed in the present utility model include states or shapes that are approximate, similar, or close thereto.

[0030] Any component provided by the present utility model can either be assembled from multiple separate components or be a single component manufactured by an integral forming process.

[0031] The above are only the preferred embodiments of the present utility model, and all equivalent changes and modifications made according to the scope of the patent application of the present utility model shall fall within the scope covered by the present utility model.

Claims

1. A vertical mill roller automatic lubricating oil replenishment station, comprising an oil tank, characterized in that: An oil supply and suction pump is arranged on the top of the oil tank, and the output pipeline of the oil supply and suction pump is connected to the distribution valve through an oil supply filter and a cooler. The distribution valve is provided with a plurality of oil supply pipelines connected to the corresponding lubricating oil input ports of the grinding roller assemblies. The lubricating oil output ports of the grinding roller assemblies are connected to the corresponding return oil pumps through return oil pipelines, and the output pipeline of the return oil pump is connected to the oil tank.

2. The automatic lubricating oil replenishing station for grinding rollers of a vertical grinding mill according to claim 1, characterized in that: A pressure regulating valve is arranged on the output pipeline of the oil pump and the distribution valve is arranged on the pressure gauge and the pressure measuring gauge.

3. The automatic lubricating oil replenishing station for grinding rollers of a vertical grinding mill according to claim 1, characterized in that: The oil return pipeline is provided with an oil return filter.

4. The automatic lubricating oil replenishing station for grinding rollers of a vertical grinding mill according to claim 1, 2 or 3, characterized in that: The return oil pump is driven by a motor, and a regulating valve is arranged on the output pipeline of the return oil pump.

5. The automatic lubricating oil replenishing station for grinding rollers of a vertical grinding mill according to claim 1, characterized in that: It also includes a base, on which the oil tank and the oil pump are installed.

6. The automatic lubricating oil replenishing station for grinding rollers of a vertical grinding mill according to claim 1 or 5, characterized in that: The oil tank is also provided with a spare oil supply and extraction pump, and the cooler is provided with a cooling fan.

7. The automatic lubricating oil replenishing station for grinding rollers of a vertical grinding mill according to claim 1, characterized in that: The grinding wheel of the grinding roller assembly is provided with a bearing installation cavity and is rotatably connected to the roller shaft via the bearing assembly. The roller shaft is axially provided with an oil inlet channel connected to the bearing installation cavity, and the roller shaft is also provided with an oil outlet channel connected to the bearing installation cavity.

8. The automatic lubricating oil replenishing station for grinding rollers of a vertical grinding mill according to claim 7, characterized in that: The input end of the oil inlet channel is connected to the oil supply pipeline, and the output end of the oil outlet channel is connected to the oil return pipeline.

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