Synchronous rapid driving device for online hard surface surfacing of grinding roller and grinding disc

Abstract

The utility model discloses a synchronous rapid driving device for online hard surface surfacing of a grinding roller and a grinding disc, and relates to the technical field of coal mills. The coal mill comprises a coal mill body and a milling roller, an inner gear ring is arranged on the side wall of an inner ring of the coal mill body, a connecting ring is fixedly installed on the side wall of the milling roller, a transmission loose gear ring is fixedly installed on the connecting ring, and the transmission loose gear ring is meshed with the inner gear ring. And a protection mechanism is arranged on one side of the inner gear ring on the side wall of the coal mill body. According to the utility model, the grinding bowl and the grinding roller can synchronously rotate, so that the grinding bowl and the grinding roller can work together, the welding efficiency is further improved, the working period is accelerated, and meanwhile, in the transmission process, the arranged air blowing fan can start to supply air, so that the air is guided into the two air blowing pipes and then is exhausted by virtue of the exhaust holes in the air blowing pipes; in this way, the transmission loose gear ring and the inner gear ring can be cleaned, and then the stability of gear rotation is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of coal mill technology, specifically to a synchronous and rapid drive device for online hardfacing welding of grinding rollers and grinding discs. Background Technology

[0002] A coal mill is a machine that crushes coal lumps and grinds them into pulverized coal. It is an important auxiliary equipment for coal furnaces. Currently, when processing the grinding rollers of vertical coal mills, an online hardfacing process is usually adopted. However, in the existing technology, the grinding rollers and grinding bowls are usually driven separately during hardfacing. This means that the two cannot be processed simultaneously and can only be processed sequentially, which affects the processing efficiency. To address this, a synchronous and rapid drive device for online hardfacing of grinding rollers and grinding bowls is proposed. Utility Model Content

[0003] The purpose of this invention is to address the problem that grinding rollers and grinding bowls are usually driven separately, which means they cannot be processed simultaneously during hardfacing and must be processed sequentially, thus affecting processing efficiency. This invention provides a synchronous and rapid drive device for online hardfacing of grinding rollers and grinding bowls.

[0004] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0005] A synchronous and rapid drive device for online hardfacing of grinding rollers and grinding discs includes a coal mill body, a grinding bowl on the coal mill body, a support plate on one side of the coal mill body, and a grinding roller on the support plate. An internal toothed ring is provided on the inner ring side wall of the grinding bowl, a connecting ring is fixedly installed on the side wall of the grinding roller, and a transmission toothed ring is fixedly installed on the connecting ring. The transmission toothed ring meshes with the internal toothed ring. A protective mechanism is provided on the side wall of the coal mill body on one side of the grinding roller.

[0006] Preferably, an extension ring is provided on the inner ring sidewall of the grinding bowl, and one side of the internal toothed ring is fixedly installed on the extension ring.

[0007] Preferably, the protection mechanism includes a support plate, one end of which is fixedly installed on the edge of the coal mill body, and a U-shaped plate is fixedly installed on the other end of the support plate. Air blowers are rotatably installed on both ends of the U-shaped plate, and an air blower is provided inside the U-shaped plate, and the air blower is connected to the air blower.

[0008] Preferably, the air pipe is arranged in an arc shape, and multiple exhaust holes are opened on one side wall of the air pipe, and a filter screen is provided in the exhaust hole.

[0009] Preferably, a supporting rotating ring is fixedly installed at one end of the air pipe, and a supporting rotating shaft is inserted into the supporting rotating ring. The two ends of the supporting rotating shaft are fixedly installed on the inner sidewall of the U-shaped plate.

[0010] Preferably, a connecting hose is provided on the air outlet end of the blower, and one end of the connecting hose is fixedly installed on the blower pipe, and the connecting hose is connected to the blower pipe.

[0011] The beneficial effects of this utility model are as follows:

[0012] 1. In this utility model, by installing an internal gear ring on the side wall of the grinding bowl, the internal gear ring drives the meshing transmission gear ring and the grinding roller to rotate, thereby enabling the grinding bowl and the grinding roller to rotate synchronously. This allows them to work together, thereby improving welding efficiency and speeding up the work cycle. At the same time, during the transmission process, the installed blower will start to deliver air, thereby introducing the gas into two blower pipes and then discharging it through the exhaust holes on the blower pipes. This can clean the transmission gear ring and the internal gear ring, removing impurities and dust that have entered during the welding process, thereby ensuring the stability of gear rotation. Attached Figure Description

[0013] Figure 1 is a front view of the overall three-dimensional connection structure of this utility model;

[0014] Figure 2 is a three-dimensional connection structure diagram of the grinding bowl, internal gear ring and transmission gear ring in this utility model;

[0015] Figure 3 is a three-dimensional connection structure diagram of the protection mechanism in this utility model.

[0016] Reference numerals in the attached drawings: 1. Coal mill body; 2. Grinding bowl; 3. Grinding roller; 4. Connecting ring; 5. Transmission gear ring; 6. Internal gear ring; 7. Support plate; 8. U-shaped plate; 9. Blower pipe; 10. Exhaust port; 11. Support shaft; 12. Support rotating ring; 13. Blower; 14. Connecting hose; 15. Extension ring; 16. Support plate. Specific implementation methods

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0019] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0020] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. 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] As shown in Figures 1-3, a synchronous and rapid drive device for online hardfacing of grinding rollers and grinding discs includes a coal mill body 1 and a base plate. A reducer is installed on the base plate on one side of the coal mill body 1, and a drive motor is installed on the base plate on the other side of the reducer. The drive motor provides power to the coal mill body 1 by driving the reducer. A grinding bowl 2 is installed on one side of the coal mill body 1. An internal gear ring 6 is installed on the inner ring sidewall of the grinding bowl 2. An extension ring 15 is installed on the inner ring sidewall of the grinding bowl 2. One side of the internal gear ring 6 is fixedly installed on the extension ring 15, which facilitates the installation and removal of the internal gear ring 6.

[0022] A support plate 16 is provided on one side of the coal mill body 1, and a grinding roller 3 is provided on the support plate 16. The grinding roller 3 is rotatably mounted on the support plate 16. A connecting ring 4 is fixedly installed on the side wall of the grinding roller 3, and a transmission toothed ring 5 is fixedly installed on the connecting ring 4. The transmission toothed ring 5 is meshed with the inner toothed ring 6, which enables the grinding bowl 2 and the grinding roller 3 to rotate synchronously, so that they can work together, thereby improving welding efficiency and speeding up the operation cycle.

[0023] A protective mechanism is provided on one side of the internal toothed ring 6 on the side wall of the coal mill body 1. The protective mechanism includes a support plate 7. One end of the support plate 7 is fixedly installed on the edge of the coal mill body 1, and a U-shaped plate 8 is fixedly installed on the other end of the support plate 7. Air pipes 9 are rotatably installed on both ends of the U-shaped plate 8. A support rotating ring 12 is fixedly installed on one end of the air pipe 9, and a support rotating shaft 11 is inserted into the support rotating ring 12. Both ends of the support rotating shaft 11 are fixedly installed on the inner side wall of the U-shaped plate 8. With the help of the support rotating shaft 11, the air pipes 9 can be rotated easily, thereby facilitating the opening of the two air pipes 9 to replace the welded grinding rollers 3.

[0024] The air pipe 9 is arranged in an arc shape, and multiple exhaust holes 10 are provided on one side wall of the air pipe 9. A filter screen is provided inside the exhaust hole 10. The two arc-shaped air pipes 9 can facilitate air guidance, and the multiple exhaust holes 10 can facilitate the removal of dust and impurities on the internal gear ring 6 and the transmission gear ring 5.

[0025] An air blower 13 is installed inside the U-shaped plate 8, and the air blower 13 is connected to the air pipe 9. A connecting hose 14 is installed on the air outlet end of the air blower 13, and one end of the connecting hose 14 is fixedly installed on the air pipe 9. The connecting hose 14 is connected to the air pipe 9. During the transmission process, the air blower 13 will start to deliver air, thereby cleaning the transmission gear ring 5 and the internal gear ring 6, removing impurities and dust that have entered during the welding process, and thus ensuring the stability of gear rotation.

[0026] In summary: During the surfacing process, the drive motor on the coal mill body 1 is started to drive the reducer, which in turn drives the grinding bowl 2 to rotate. The grinding bowl 2 then drives the extension ring 15 and the internal gear ring 6 to rotate. The internal gear ring 6, in turn, drives the meshing transmission gear ring 5 and the grinding roller 3 to rotate, thus enabling the coal mill body 1 and the grinding roller 3 to rotate synchronously. This allows them to work together, thereby improving welding efficiency. During the transmission process, the blower 13 is started to deliver air, which is then introduced into the two blower pipes 9 and discharged through the exhaust holes 10 on the blower pipes 9. This cleans the transmission gear ring 5 and the internal gear ring 6, removing impurities and dust that may have entered during the welding process. When it is necessary to replace the grinding roller 3, simply rotate and open the blower pipes 9 on both sides to replace the new grinding roller 3 for surfacing.

[0027] The foregoing description enables those skilled in the art to implement or use this invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this invention. Therefore, this invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A synchronous and rapid drive device for online hardfacing welding of grinding rollers and grinding discs, comprising a coal mill body (1), wherein a grinding bowl (2) is provided on the coal mill body (1), a support plate (16) is provided on one side of the coal mill body (1), and a grinding roller (3) is provided on the support plate (16), characterized in that, An internal toothed ring (6) is provided on the inner ring side wall of the grinding bowl (2), a connecting ring (4) is fixedly installed on the side wall of the grinding roller (3), and a transmission toothed ring (5) is fixedly installed on the connecting ring (4). The transmission toothed ring (5) meshes with the internal toothed ring (6), and a protective mechanism is provided on the side wall of the coal mill body (1) on one side of the grinding roller (3).

2. The synchronous and rapid drive device for online hardfacing welding of grinding rollers and grinding discs according to claim 1, characterized in that, An extension ring (15) is provided on the inner ring sidewall of the grinding bowl (2), and one side of the internal tooth ring (6) is fixedly installed on the extension ring (15).

3. The synchronous and rapid drive device for online hardfacing welding of grinding rollers and grinding discs according to claim 1, characterized in that, The protection mechanism includes a support plate (7), one end of which is fixedly installed on the edge of the coal mill body (1), and the other end of which is fixedly installed with a U-shaped plate (8). Both ends of the U-shaped plate (8) are rotatably installed with air pipes (9). An air blower (13) is provided inside the U-shaped plate (8), and the air blower (13) is connected to the air pipe (9).

4. The synchronous and rapid drive device for online hardfacing welding of grinding rollers and grinding discs according to claim 3, characterized in that, The air pipe (9) is arranged in an arc shape, and multiple exhaust holes (10) are opened on one side wall of the air pipe (9). A filter screen is provided in the exhaust hole (10).

5. The synchronous and rapid drive device for online hardfacing welding of grinding rollers and grinding discs according to claim 3, characterized in that, One end of the air pipe (9) is fixedly installed with a support rotating ring (12), and a support rotating shaft (11) is inserted into the support rotating ring (12). Both ends of the support rotating shaft (11) are fixedly installed on the inner side wall of the U-shaped plate (8).

6. The synchronous and rapid drive device for online hardfacing welding of grinding rollers and grinding discs according to claim 3, characterized in that, The blower (13) is provided with a connecting hose (14) at the air outlet end, and one end of the connecting hose (14) is fixedly installed on the blower pipe (9). The connecting hose (14) is connected to the blower pipe (9).

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