Multi-impeller tool for reducing shaft diameter roughness of end cover of large mill

Abstract

The utility model discloses a multi-blade wheel tool for reducing the shaft diameter roughness of a large mill end cover, which comprises a motor, a supporting plate, a driving belt wheel, a V-shaped belt, a driven belt wheel, a locking device, a main shaft and a multi-blade wheel, the supporting plate is clamped and fixed on a vertical lathe tool rest, the motor is fixed on the supporting plate, the driving belt wheel is arranged at the end part of an output shaft of the motor, and the multi-blade wheel is connected with the main shaft. A driven belt wheel is arranged at the tail end of the main shaft, and the motor drives the multi-leaf wheel to rotate at a high speed through the driving belt wheel, the V-shaped belt and the driven belt wheel to complete shaft diameter machining. The device is convenient and reliable, can finish the shaft diameter of the end cover of the large mill, improves the product quality and the working efficiency, meets the technical requirements, and saves the machining cost.

Description

Technical Field

[0001] This utility model relates to a flap wheel tooling for reducing the roughness of the shaft diameter of the end cover of a large mill, and belongs to the field of machining technology. Background Technology

[0002] The mill end cover is a key component of a coal mill in a mine. Located at both ends of the mill cylinder, its main function is to support and seal the mill, preventing leakage of grinding materials and media. It is typically made of high-strength cast steel. Its shaft diameter surface involves small-clearance frictional sliding, requiring very low surface roughness to ensure smooth mill operation. Machining alone cannot meet these roughness requirements, and the traditional method is to use an external cylindrical grinding machine. However, for large mill end covers with diameters exceeding 6 meters, purchasing large external cylindrical grinding machines is costly and results in low machine utilization, which is wasteful for companies not engaged in mass production. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a flap wheel tooling for reducing the roughness of the shaft diameter of the end cover of a large mill, which meets the technical requirements and reduces the processing cost, in order to address the deficiencies of the existing technology.

[0004] To solve this technical problem, this utility model provides a flap wheel tooling for reducing the roughness of the shaft diameter of a large mill end cover. The tooling includes a motor, a support plate, a drive pulley, a V-belt, a driven pulley, a locking device, a main shaft, and a flap wheel. The support plate is clamped and fixed on a vertical lathe tool post, and the motor is fixed on the support plate. A drive pulley is installed at the end of the motor output shaft. The flap wheel is connected to the main shaft, and a driven pulley is provided at the end of the main shaft. The motor drives the flap wheel to rotate at high speed through the drive pulley, V-belt, and driven pulley to complete the machining of the shaft diameter.

[0005] The main shaft is provided with a shoulder, and the main shaft fixes the flap wheel through the shoulder and the locking nut.

[0006] The driven pulley is connected to the main shaft via a locking device.

[0007] The locking device comprises a sleeve, a bearing, a spacer ring, and a through cover. The bearing is placed inside the sleeve, and the positioning is achieved by the through covers and spacers at both ends.

[0008] The flap wheel can be either a coarse grinding type or a fine grinding type. The coarse grinding type performs coarse grinding on the shaft diameter, while the fine grinding type performs fine polishing on the shaft diameter.

[0009] Beneficial effects: This utility model is convenient and reliable, and can realize the precision machining of the shaft diameter of the end cover of large mills, which improves product quality and work efficiency, meets technical requirements, and saves processing costs. Attached Figure Description

[0010] Figure 1This is a schematic diagram of the usage state of this utility model;

[0011] Figure 2 This is an assembly diagram of the locking device of this utility model;

[0012] Figure 3 This is a schematic diagram of the main shaft of this utility model;

[0013] Figure 4 This utility model Figure 3 AA cross-section view;

[0014] Figure 5 This is a schematic diagram of the locking device of this utility model.

[0015] In the diagram: 1. Motor; 2. Support plate; 3. Drive pulley; 4. V-belt; 5. Driven pulley; 6. Locking device; 61. Sleeve; 62. Bearing; 63. Spacer ring; 64. Cover; 7. Main shaft; 71. Shoulder; 8. Flap wheel. Detailed Implementation

[0016] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0017] like Figures 1-5 As shown, this utility model provides a flap wheel tooling for reducing the roughness of the shaft diameter of a large mill end cover. It includes a motor 1, a support plate 2, a drive pulley 3, a V-belt 4, a driven pulley 5, a locking device 6, a main shaft 7, and a flap wheel 8. The support plate 2 is clamped and fixed on the vertical lathe tool post, and the motor 1 is fixed on the support plate 2. The drive pulley 3 is installed at the end of the output shaft of the motor 1. The flap wheel 8 is connected to the main shaft 7, and the driven pulley 5 is provided at the end of the main shaft 7. The motor 1 drives the flap wheel 8 to rotate at high speed through the drive pulley 3, the V-belt 4, and the driven pulley 5 to complete the machining of the shaft diameter.

[0018] like Figure 3 and Figure 4 As shown, the main shaft 7 is provided with a shoulder 71, and the main shaft 7 fixes the flap wheel 8 through the shoulder 71 and the locking nut.

[0019] The driven pulley 5 is connected to the main shaft 7 via a locking device 6.

[0020] like Figure 5 As shown, the locking device 6 mainly consists of a sleeve 61, a bearing 62, a spacer ring 63, and a through cover 64. The bearing 62 is placed inside the sleeve 61, and the positioning is achieved by the through covers 64 and spacers 63 at both ends.

[0021] The flap wheel 8 is either a coarse grinding type or a fine grinding type. The coarse grinding type performs coarse grinding on the shaft diameter, while the fine grinding type performs fine polishing on the shaft diameter. During the processing, the coarse grinding type flap wheel is first installed to perform coarse grinding on the shaft diameter, and then the fine grinding type flap wheel is replaced to perform fine polishing on the shaft diameter. The high-speed rotation of the flap wheel 8 completes the fine grinding of the shaft diameter, reducing the roughness of the shaft diameter.

[0022] This utility model has a simple structure, is easy to operate, can achieve rapid processing, improves product quality, and meets technical requirements.

[0023] The above-described embodiments of this utility model are merely illustrative examples and are not the only ones. All modifications within the scope of this utility model or equivalent to this utility model are encompassed by this utility model.

Claims

1. A flap wheel tooling for reducing the roughness of the shaft diameter of a large mill end cover, characterized in that: The machine includes a motor (1), a support plate (2), a drive pulley (3), a V-belt (4), a driven pulley (5), a locking device (6), a main shaft (7), and a flap wheel (8). The support plate (2) is clamped and fixed on the vertical lathe tool post. The motor (1) is fixed on the support plate (2). The output shaft of the motor (1) is equipped with a drive pulley (3). The flap wheel (8) is connected to the main shaft (7). The end of the main shaft (7) is equipped with a driven pulley (5). The motor (1) drives the flap wheel (8) to rotate at high speed through the drive pulley (3), the V-belt (4), and the driven pulley (5) to complete the machining of the shaft diameter.

2. The flap wheel tooling for reducing the roughness of the end cover shaft diameter of a large mill as described in claim 1, characterized in that: The main shaft (7) is provided with a shoulder (71), and the main shaft (7) fixes the flap wheel (8) through the shoulder (71) and the locking nut.

3. The flap wheel tooling for reducing the roughness of the end cover shaft diameter of a large mill as described in claim 1, characterized in that: The driven pulley (5) is connected to the main shaft (7) via a locking device (6).

4. The flap wheel tooling for reducing the roughness of the end cover shaft diameter of a large mill as described in claim 1, characterized in that: The locking device (6) includes a sleeve (61), a bearing (62), a spacer (63), and a cover (64). The bearing (62) is placed inside the sleeve (61), and is positioned by the cover (64) and spacer (63) at both ends.

5. The flap wheel tooling for reducing the roughness of the shaft diameter of a large mill end cover according to any one of claims 1-4, characterized in that: The flap wheel (8) is either a coarse grinding type or a fine grinding type. The coarse grinding type performs coarse grinding on the shaft diameter, while the fine grinding type performs fine polishing on the shaft diameter.

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