A top wheel arrangement to overcome the axial forces of a mill

Abstract

The utility model discloses a kind of top wheel devices capable of overcoming mill axial force, including base, big screw plug, spring guide column, thrust bearing, race, spiral spring, washer, roller device and connecting plate, the roller device includes roller holder, roller device is clamped on base through roller holder, simultaneously through bolt and base, spring guide column is fixed on roller holder through bolt joint;The race, spiral spring, washer are sleeved on spring guide column, spiral spring is installed in the middle of race, washer, thrust bearing compresses race, big screw plug is jointed through the wire hole on base, compresses thrust bearing, simultaneously further fixed spring guide column.The utility model can offset the axial force generated in the process of mill operation, effectively lower the scratch, wear caused by excessive axial force to bush, improve the service life of bush, improve the working efficiency of mill.

Description

Technical Field

[0001] This utility model relates to a top wheel device for overcoming the axial force of a mill, belonging to the field of mill technology. Background Technology

[0002] Ball mills, as crucial equipment in the crushing and grinding field, play a vital role in industry. With continuous technological advancements and market changes, ball mills will continue to evolve towards larger scale, greater intelligence, greener manufacturing processes, and multi-functionality. However, as ball mills become increasingly larger, their manufacturing faces significant challenges. Larger ball mills generate greater axial forces during rotation. Excessive axial force puts excessive pressure on the main bearing bushes, easily causing wear and scratches, and in severe cases, significant vibrations that can lead to equipment malfunction. Currently, methods for controlling axial force in mills mainly focus on manufacturing and equipment installation and maintenance. There is no effective method for controlling axial force during operation, which significantly hinders the normal use of the mill. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a top wheel device that can overcome the axial force of a mill, addressing the shortcomings of the existing technology.

[0004] To solve this technical problem, this utility model provides a top wheel device capable of overcoming the axial force of a mill, including a base, a large screw plug, a spring guide post, a thrust bearing, a seat ring, a helical spring, a washer, a roller device, and a connecting plate. The roller device includes a roller retainer, and the roller device is secured to the base by the roller retainer and bolted to the base. The spring guide post is secured to the roller retainer by bolts. The seat ring, helical spring, and washer are fitted onto the spring guide post, with the helical spring installed between the seat ring and the washer. The thrust bearing presses against the seat ring, and the large screw plug is secured through a threaded hole on the base, pressing against the thrust bearing and further securing the spring guide post.

[0005] The roller device includes a roller retainer, a hydraulic roller, a through cover, a pressure plate, an oil cup, a shaft, a felt, a bushing, and a bearing. The bearing is fitted onto the shaft, the hydraulic roller is fitted onto the bearing, and the through cover is bolted to the hydraulic roller. The through cover has a groove for installing the felt. After the felt is installed, the pressure plate is bolted to the through cover to press the felt tightly.

[0006] The shaft is provided with a lubricating oil hole, and an oil cup is installed on the shaft.

[0007] The roller retainer is a welded component, which has bolt holes for engaging with the base and spring guide post, as well as a slotted track for mounting with the base.

[0008] The base is a welded component, and it is provided with bolt holes for engaging with the roller device, slots for mounting with the roller retainer, and threaded holes for engaging with the large screw plug.

[0009] The spring guide post is provided with bolt holes that engage with the roller device. The roller device is connected to the spring guide post by bolts. The thrust bearing and helical spring on the spring guide post can withstand and transmit axial force.

[0010] The base is provided with lifting holes for easy lifting.

[0011] The connecting plate is provided with bolt holes and is fixed to the mill foundation. The base is attached to the connecting plate by bolts, thus fixing the entire top wheel device to the foundation.

[0012] The roller device is installed at the feed or discharge end of the mill, and is positioned at the location where the axial force of the mill is too large. The hydraulic roller rotates with the mill, thus counteracting the excessive axial force of the mill.

[0013] Beneficial effects: This utility model can counteract the axial force generated during the operation of the mill, effectively reducing the scratches and wear of the bearing caused by excessive axial force, improving the service life of the bearing, and improving the working efficiency of the mill. Attached Figure Description

[0014] Figure 1 This is a schematic front view illustrating the assembly of this utility model;

[0015] Figure 2 This is a top view illustrating the assembly of this utility model;

[0016] Figure 3 This is an assembly diagram of the roller device of this utility model.

[0017] In the diagram: 1. Base; 2. Large screw plug; 3. Spring guide post; 4. Thrust bearing; 5. Seat ring; 6. Helical spring; 7. Washer; 8. Roller assembly; 9. Connecting plate; 81. Roller cage; 82. Hydraulic impeller; 83. Through cover; 84. Pressure plate; 85. Oil cup; 86. Shaft; 87. Felt; 88. Bushing; 89. Bearing. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] like Figures 1-3As shown, this utility model provides a top wheel device capable of overcoming the axial force of a mill, including a base 1, a large screw plug 2, a spring guide post 3, a thrust bearing 4, a seat ring 5, a helical spring 6, a washer 7, a roller device 8, and a connecting plate 9. The roller device 8 includes a roller retainer 81, which is secured to the base 1 and bolted together. The spring guide post 3 is bolted and fixed to the roller retainer 81. The seat ring 5, helical spring 6, and washer 7 are fitted onto the spring guide post 3. The helical spring 6 is installed between the seat ring 5 and the washer 7. The thrust bearing 4 presses against the seat ring 5. The large screw plug 2 is secured through a threaded hole on the base 1, pressing against the thrust bearing 4 and further fixing the spring guide post 3. The spring guide post 3 provides a fixed track for the thrust bearing 4, seat ring 5, helical spring 6, and washer 7. The seat ring 5 and washer 7 are used to fix and press against the helical spring 6.

[0020] The roller device 8 includes a roller retainer 81, a hydraulic roller 82, a cover 83, a pressure plate 84, an oil cup 85, a shaft 86, a felt 87, a bushing 88, and a bearing 89. The bearing 89 is fitted onto the shaft 86, the hydraulic roller 82 is fitted onto the bearing 89, and the cover 83 is bolted to the hydraulic roller 82. The cover 83 has a groove for installing the felt 87. After the felt 87 is installed, the pressure plate 84 is bolted to the cover 83 to press the felt 87 tightly. The felt 87 acts as a seal to prevent oil leakage.

[0021] The shaft 86 is provided with a lubricating oil hole, and the oil cup 85 is installed on the shaft 86. It plays a lubricating role during rotation to improve service life.

[0022] The roller retainer 81 is a welded part, which is provided with bolt holes that engage with the base 1 and the spring guide post 3, as well as a slot track that is installed and matched with the base 1.

[0023] The base 1 is a welded part, and the base 1 is provided with bolt holes that engage with the roller device 8, slots that engage with the roller retainer 81, and threaded holes that engage with the large screw plug 2.

[0024] The spring guide post 3 is provided with bolt holes that engage with the roller device 8. The roller device 8 is connected to the spring guide post 3 by bolts. The thrust bearing 4 and the helical spring 6 on the spring guide post 3 can withstand and transmit axial force, thereby improving the service life of the equipment.

[0025] The base 1 is provided with a hoisting hole for easy hoisting.

[0026] The connecting plate 9 is provided with bolt holes and is fixed on the mill foundation. The base 1 is attached to the connecting plate 9 by bolts, thus fixing the entire top wheel device on the foundation.

[0027] During mill operation, axial forces are generated, and these forces are concentrated at the main bearing. Excessive axial forces exert significant pressure on the main bearing bush. This invention is installed at the mill's feed or discharge end and is fixed to the mill foundation via a connecting plate 9. The hydraulic impeller 82 rests at a suitable position on the mill's feed bushing or feed / discharge end cover. As the mill rotates, the device applies a counterforce to the mill, counteracting the excessive axial forces and reducing the pressure on the mill's main bearing bush. Furthermore, the unique spring 6 and thrust bearing 4 structure of this device prevent rigid contact between the hydraulic impeller 82 and the mill, thus extending the device's service life.

[0028] This invention can counteract the axial force generated during the operation of the mill, effectively reducing the scratches and wear on the bearings caused by excessive axial force, improving the service life of the bearings, and increasing the working efficiency of the mill.

[0029] 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 top wheel device for overcoming the axial force of a mill, characterized in that: The assembly includes a base (1), a large screw plug (2), a spring guide post (3), a thrust bearing (4), a seat ring (5), a helical spring (6), a washer (7), a roller assembly (8), and a connecting plate (9). The roller assembly (8) includes a roller retainer (81). The roller assembly (8) is secured to the base (1) by the roller retainer (81) and is also bolted to the base (1). The spring guide post (3) is bolted to the roller retainer (81). The seat ring (5), helical spring (6), and washer (7) are fitted onto the spring guide post (3). The helical spring (6) is installed between the seat ring (5) and the washer (7). The thrust bearing (4) presses against the seat ring (5). The large screw plug (2) is secured through the threaded hole on the base (1) to press against the thrust bearing (4) and further fix the spring guide post (3).

2. The top wheel device for overcoming the axial force of the mill according to claim 1, characterized in that: The roller device (8) includes a roller retainer (81), a hydraulic roller (82), a cover (83), a pressure plate (84), an oil cup (85), a shaft (86), a felt (87), a bushing (88), and a bearing (89). The bearing (89) is fitted onto the shaft (86), the hydraulic roller (82) is fitted onto the bearing (89), and the cover (83) is bolted onto the hydraulic roller (82). The cover (83) has a groove for installing the felt (87). After the felt (87) is installed, the pressure plate (84) is bolted onto the cover (83) to press the felt (87) tight.

3. The top wheel device for overcoming the axial force of the mill according to claim 2, characterized in that: The shaft (86) is provided with a lubricating oil hole, and an oil cup (85) is installed on the shaft (86).

4. The top wheel device for overcoming the axial force of the mill according to claim 1, characterized in that: The roller retainer (81) is a welded part, which is provided with bolt holes that engage with the base (1) and the spring guide post (3), as well as a slot track that engages with the base (1).

5. The top wheel device for overcoming the axial force of the mill according to claim 1, characterized in that: The base (1) is a welded part. The base (1) is provided with bolt holes that engage with the roller device (8), slots that engage with the roller retainer (81), and threaded holes that engage with the large screw plug (2).

6. The top wheel device for overcoming the axial force of the mill according to claim 1, characterized in that: The spring guide post (3) is provided with bolt holes that engage with the roller device (8). The roller device (8) is connected to the spring guide post (3) by bolts. The thrust bearing (4) and the helical spring (6) on the spring guide post (3) can withstand and transmit axial force.

7. The top wheel device for overcoming the axial force of the mill according to claim 1, characterized in that: The base (1) is provided with a hoisting hole for easy hoisting.

8. The top wheel device for overcoming the axial force of the mill according to claim 1, characterized in that: The connecting plate (9) is provided with bolt holes and is fixed on the mill foundation. The base (1) is attached to the connecting plate (9) by bolts, and the entire top wheel device is fixed on the foundation.

9. The top wheel device for overcoming the axial force of the mill according to any one of claims 1-8, characterized in that: The roller device (8) is installed at the feed or discharge end of the mill and is positioned at the location where the axial force of the mill is too large. The liquid wheel (82) rotates with the mill and plays a role in counteracting the excessive axial force of the mill.

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