A lubrication device for a pulverized coal drive shaft

Abstract

This utility model relates to the field of pulverized coal conveying technology, and particularly to a lubrication device for a pulverized coal drive shaft. The device includes a drive shaft rotatably mounted within a sealed sleeve. A lubrication cylinder is located on the right side of the sealed sleeve, and a conveying sleeve is located on the right side of the lubrication cylinder. A collection and guiding groove is provided on the conveying sleeve. A first sealing ring is provided within the sealed sleeve, and a second sealing ring is located on the right side of the first sealing ring. An annular rotation limiting block is fixed to the drive shaft, and the annular rotation limiting block is rotatably limited between the first and second sealing rings. This utility model's lubrication device for a pulverized coal drive shaft effectively prevents lubricating oil overflow.

Description

Technical Field

[0001] This utility model relates to the field of pulverized coal conveying technology, and in particular to a lubrication device for a pulverized coal drive shaft. Background Technology

[0002] Pulverized coal is obtained by processing raw coal into dry powder of a specified particle size (in meters). In metallurgy, pulverized coal is mainly used as fuel and reducing agent, and it also has the advantages of low cost and adjusting slag composition. When in use, pulverized coal is generally transported to a designated location by a pulverized coal conveyor. The drive shaft is a key component of the pulverized coal conveyor. To reduce wear and improve transmission efficiency, the drive shaft needs to be lubricated during use. However, in existing systems, lubricating oil leaks from between the drive shaft and the sleeve during lubrication, contaminating the joint and wasting lubricating oil. Utility Model Content

[0003] The purpose of this utility model is to provide a lubrication device for a pulverized coal drive shaft, which can effectively prevent the overflow of lubricating oil.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] A lubrication device for a pulverized coal drive shaft includes a drive shaft rotatably disposed within a sealing sleeve. A lubrication cylinder is provided on the right side of the sealing sleeve, and a conveying sleeve is provided on the right side of the lubrication cylinder. A collection guide groove is provided on the conveying sleeve.

[0006] A first sealing ring is provided inside the sealing sleeve, and a second sealing ring is provided on the right side of the first sealing ring. An annular rotation limiting block is fixed on the transmission shaft, and the annular rotation limiting block is rotatably limited between the first sealing ring and the second sealing ring.

[0007] Several oil drain holes are provided on the second sealing ring.

[0008] As an improvement, a guide pipe is provided at the bottom of the collection guide trough, and the output end of the guide pipe is connected to a sealing sleeve.

[0009] As an improvement: a first oil supply pipe is provided above the sealing sleeve, several second oil supply pipes are provided above the lubrication cylinder, and several third oil supply pipes are provided above the conveying sleeve. The input ends of the first oil supply pipe, the second conveying pipes, and the third oil supply pipes are connected to the main oil supply pipe.

[0010] As an improvement, a circulation pipe is connected to the main oil supply pipe, and the input end of the circulation pipe is connected to the bottom of the lubrication cylinder.

[0011] As an improvement: a circulation pump is provided on the circulation pipeline, and an oil drain pipe is provided on the circulation pipeline, with a ball valve provided on the oil drain pipe.

[0012] In summary, this utility model has the following beneficial effects:

[0013] 1. During the lubrication process, the annular rotating limit block rotates and is limited between the first sealing ring and the second sealing ring. Excess lubricating oil can flow back into the lubrication cylinder through the oil drain hole, thereby preventing the lubricating oil from flowing out and reducing waste.

[0014] 2. The circulating pump can deliver the lubricating oil in the lubrication cylinder to the designated position of the drive shaft in real time through the corresponding delivery pipe, thereby improving the lubrication effect. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in this utility model, the accompanying drawings used in the description of the embodiments or prior art will be briefly introduced below.

[0016] Figure 1 This is a schematic diagram of the overall structure of a lubrication device for a pulverized coal drive shaft.

[0017] Figure 2 A schematic cross-sectional view of a lubrication device for a pulverized coal drive shaft;

[0018] Figure 3 for Figure 2 Schematic diagram of part A in the middle;

[0019] The components include: 1. Drive shaft; 2. Sealing sleeve; 3. Lubrication cylinder; 4. Transmission sleeve; 5. Collection guide groove; 6. First sealing ring; 7. Second sealing ring; 8. Annular rotation limit block; 9. Oil drain hole; 10. Guide pipe; 11. First oil delivery pipe; 12. Second oil delivery pipe; 13. Third oil delivery pipe; 14. Main oil delivery pipe; 15. Circulation pipeline; 16. Circulation pump; 17. Oil drain pipe; 18. Ball valve; 19. Valve. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings.

[0021] Please refer to Figures 1-3 A lubrication device for a pulverized coal drive shaft 1 includes a drive shaft 1, which is rotatably disposed in a sealing sleeve 2. A lubrication cylinder 3 is provided on the right side of the sealing sleeve 2, and a conveying sleeve 4 is provided on the right side of the lubrication cylinder 3. A collection guide groove 5 is provided on the conveying sleeve 4.

[0022] A first sealing ring 6 is provided inside the sealing sleeve 2, and a second sealing ring 7 is provided on the right side of the first sealing ring 6. An annular rotation limiting block 8 is fixed on the transmission shaft 1, and the annular rotation limiting block 8 is rotatably limited between the first sealing ring 6 and the second sealing ring 7.

[0023] Several oil drain holes 9 are provided on the second sealing ring 7.

[0024] A guide pipe 10 is provided at the bottom of the collection guide groove 5, and the output end of the guide pipe 10 is connected to the sealing sleeve 2. In this embodiment, the collection guide groove 5 can collect excess lubricating oil at the tail end of the upper drive shaft 1 and guide it back to the lubrication cylinder 3 for reuse.

[0025] A first oil supply pipe 11 is provided above the sealing sleeve 2, several second oil supply pipes 12 are provided above the lubrication cylinder 3, and several third oil supply pipes 13 are provided above the conveying sleeve 4. The input ends of the first oil supply pipe 11, the second oil supply pipes and the third oil supply pipes 13 are connected to the main oil supply pipe 14.

[0026] In this embodiment, during the lubrication process, the annular rotating limit block 8 is rotated and limited between the first sealing ring 6 and the second sealing ring 7. Excess lubricating oil can flow back into the lubrication cylinder 3 through the oil drain hole 9, thereby preventing the lubricating oil from flowing out and reducing waste.

[0027] A circulation pipe 15 is connected to the main oil supply pipe 14, and the inlet end of the circulation pipe 15 is connected to the bottom of the lubrication cylinder 3. A circulation pump 16 is provided on the circulation pipe 15, and an oil drain pipe 17 is provided on the circulation pipe 15, with a ball valve 18 on the oil drain pipe 17.

[0028] In this embodiment, the circulating pump 16 can deliver the lubricating oil in the lubrication cylinder 3 to the designated position of the drive shaft 1 in real time through the corresponding delivery pipe, thereby improving the lubrication effect.

[0029] A valve 19 is installed on the circulation pipeline 15. When the lubricating oil needs to be replaced, the circulation pump 16 is turned off, the ball valve 18 is opened, and the lubricating oil is discharged through the oil drain pipe 17. Then the valve 19 is turned off, and the new lubricating oil is sucked into the lubrication cylinder 3 through the oil drain pipe 17 by the circulation pump 16.

[0030] Work process: The drive shaft 1 is rotatably mounted on the sealing sleeve 2, lubrication cylinder 3, and transmission sleeve 4. During lubrication, the circulation pump 16 is started to send lubricating oil through the circulation pipe 15 and the main delivery pipe, and then sequentially injects it into the first oil delivery pipe 11, the second oil delivery pipe 12, and the third oil delivery pipe 13 to lubricate the drive shaft 1 in real time. During the lubrication process, excess lubricating oil flows back into the lubrication cylinder 3 through the collection guide groove 5 and the guide pipe 10. During the rotation of the drive shaft 1, it is rotatably limited between the first sealing ring 6 and the second sealing ring 7 by the annular rotation limit block 8. Excess lubricating oil at this end can flow back into the lubrication cylinder 3 through the oil drain hole 9, which can prevent the lubricating oil from flowing out and reduce waste.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A lubricating device for a coal dust transmission shaft, characterized in that, It includes a drive shaft, which is rotatably disposed inside a sealed sleeve. A lubrication cylinder is provided on the right side of the sealed sleeve, and a conveying sleeve is provided on the right side of the lubrication cylinder. A collection guide groove is provided on the conveying sleeve. A first sealing ring is provided inside the sealing sleeve, and a second sealing ring is provided on the right side of the first sealing ring. An annular rotation limiting block is fixed on the transmission shaft, and the annular rotation limiting block is rotatably limited between the first sealing ring and the second sealing ring. Several oil drain holes are provided on the second sealing ring.

2. The coal dust transmission shaft lubricating device according to claim 1, characterized in that, A guide pipe is provided at the bottom of the collection guide trough, and the output end of the guide pipe is connected to a sealing sleeve.

3. The coal dust transmission shaft lubricating device according to claim 1, characterized in that, A first oil supply pipe is provided above the sealing sleeve, several second oil supply pipes are provided above the lubrication cylinder, and several third oil supply pipes are provided above the conveying sleeve. The input ends of the first oil supply pipe, the second conveying pipes, and the third oil supply pipes are connected to the main oil supply pipe.

4. The lubricating device for a coal dust transmission shaft according to claim 3, characterized by A circulation pipe is connected to the main oil supply pipe, and the inlet end of the circulation pipe is connected to the bottom of the lubrication cylinder.

5. The lubricating device for a coal dust transmission shaft according to claim 4, characterized in that, A circulation pump is installed on the circulation pipeline, and an oil drain pipe is installed on the circulation pipeline, with a ball valve installed on the oil drain pipe.

Images