A safety protection device for a ball mill

By designing a drive unit and a protective device on the ball mill, and using a combination of protective covers and protective shields to fix the gears, the problem of gear rusting was solved, ensuring the safe and stable operation of the equipment.

CN224271467UActive Publication Date: 2026-05-26YIMEN JUZHU MINING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YIMEN JUZHU MINING CO LTD
Filing Date
2025-06-23
Publication Date
2026-05-26

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    Figure CN224271467U_ABST
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Abstract

This utility model relates to a safety protection device for a ball mill. The driving device includes a driving assembly disposed on the front side of the ball mill for driving the ball mill to rotate. A support base for supporting the driving assembly is fixedly installed at the bottom end of the driving assembly. The protective device includes a first protective assembly fitted onto the ball mill for protecting the driving assembly. A second protective assembly is disposed on the right side of the first protective assembly for cooperating with the first protective assembly to protect the driving assembly. The protective cover can be moved closer to the protective cover, then the hinge block is rotated around the support column to insert the bolt into the fixed column, then the washer is placed on the bolt, and at the same time, the two protrusions are inserted into the grooves. Finally, the protective cover can be fixed on the protective cover by using the threaded connection between the nut and the bolt. This protects gear one and gear two from external cleaning water and large impurities falling into gear one and gear two, thus affecting the operation of the ball mill.
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Description

Technical Field

[0001] This utility model relates to the field of ball mill technology, and in particular to a safety protection device for a ball mill. Background Technology

[0002] Ball mills are key equipment for further pulverizing materials after they have been crushed. This type of ball mill is equipped with a certain number of steel balls as grinding media inside its cylinder. It is widely used in the production industries of cement, silicate products, new building materials, refractory materials, fertilizers, ferrous and non-ferrous metal ore beneficiation, and glass ceramics to pulverize various ores and other grindable materials. For example, in a safety protection device for a ball mill according to Chinese patent application number CN201820846260.4, the bases are symmetrically arranged, and a first support seat is installed on the upper left end of the two sets of bases. A support rotating shaft is installed between the two sets of first support seats. A cylinder is installed on the outer wall of the support rotating shaft. Driven gears are fixedly installed on the outer walls of both ends of the cylinder. Water pipe fixing brackets are movably sleeved on the outer walls of both ends of the cylinder. A fixing plate is provided at the bottom end of the two sets of water pipe fixing brackets. Water pipes are fixedly installed on the top end of the two sets of water pipe fixing brackets through mounting blocks. Spray pipes are symmetrically fixedly connected to the outer walls of the water pipes. A second support seat is fixedly installed on the upper right end of the two sets of bases. A gear transmission shaft is installed between the two sets of second support seats. A drive gear is fixedly installed on the outer walls of both ends of the transmission shaft.

[0003] However, when using a nozzle to spray cleaning water onto the working chamber of the ball mill, the lack of a protective device for the driving and driven gears makes it easy for the cleaning water to spray onto them. Over time, the ball mill's operation can cause the driving and driven gears to rust. Slight rust can render the equipment unusable, while severe rust can cause the equipment to detach, resulting in serious safety accidents. Utility Model Content

[0004] To address the problem mentioned in the background art, where the lack of a protective device for the driving and driven gears leads to rust on the driving and driven gears during prolonged operation of the ball mill, causing minor rusting to render the equipment unusable or severe rusting to lead to disassembly and serious safety accidents, this utility model provides the following technical solution:

[0005] A safety protection device for a ball mill includes a drive unit installed at the front of the ball mill for driving the ball mill to rotate, support frames installed on the left and right sides of the ball mill for supporting the ball mill, and a protective device installed on the cylinder of the ball mill for protecting the drive unit.

[0006] The driving device includes a driving assembly disposed on the front side of the ball mill for driving the ball mill to rotate, and a support base for supporting the driving assembly is fixedly installed at the bottom end of the driving assembly.

[0007] The protective device includes a first protective component mounted on the ball mill for protecting the drive assembly, and a second protective component provided on the right side of the first protective component for cooperating with the first protective component to protect the drive assembly.

[0008] Furthermore, a gear for meshing with the drive assembly is fixedly installed on the cylinder of the ball mill, and support cylinders are fixedly installed at both ends of the ball mill.

[0009] Furthermore, the drive assembly includes a motor fixedly mounted on the top of the support base, a rotating shaft fixedly mounted on the right end of the motor, and a gear two fixedly mounted on the right end of the rotating shaft for meshing with gear one.

[0010] Furthermore, the first protective component includes a protective cover fitted onto the ball mill to protect gear one and gear two. A number of fixing posts are fixedly installed on the ring of the protective cover. The fixing posts have grooves inside, and there are two grooves. A dustproof net for heat dissipation and ventilation of the protective cover is provided on the left side of the protective cover.

[0011] Furthermore, the second protective component includes a protective cover for cooperating with the protective cover to protect gear one and gear two. A support column for cooperating with the fixed column is fixedly installed on the ring of the protective cover, and there are several support columns. A hinge block for rotation is provided inside the support column.

[0012] Furthermore, a bolt for inserting into a fixed post is fixedly installed on the left end of the hinge block. A washer is fitted on the shank of the bolt and is located on the left side of the fixed post. A protrusion for inserting into a groove is fixedly installed on the right end of the washer. A nut for fixing the protective cover to the protective cover is threaded onto the shank of the bolt.

[0013] Furthermore, the ball mill is provided with a cover at the top for opening the ball mill.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] By setting up a drive device and a protective device, when it is necessary to protect gear one and gear two, the protective cover can be moved closer to the protective cover, the hinge block can be rotated around the support column to insert the bolt into the fixed column, the washer can be put on the bolt, and the two protrusions can be inserted into the groove. Finally, the protective cover can be fixed on the protective cover by using the threaded connection between the nut and the bolt. In this way, gear one and gear two can be protected to prevent external cleaning water and large impurities from falling into gear one and gear two and affecting the operation of the ball mill. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a front view of the present utility model;

[0018] Figure 3 This is a schematic diagram of the drive device structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the protective device structure of this utility model;

[0020] Figure 5 This utility model Figure 4 Enlarged view of point A in the middle;

[0021] Figure 6 This is a schematic diagram of the second protective component of this utility model;

[0022] Figure 7 This utility model Figure 6 Enlarged view of section B in the middle.

[0023] The following is a list of component names represented by the reference numerals in the attached figures:

[0024] 100-Ball mill, 101-Support cylinder, 102-Gear 1, 001-Machine cover;

[0025] 200-Drive device, 210-Support base, 220-Drive assembly, 221-Motor, 222-Shaft, 223-Gear II;

[0026] 300-Support Frame;

[0027] 400 - Protective device, 410 - Protective component one, 411 - Protective cover, 412 - Fixing post, 413 - Groove, 414 - Dustproof net, 420 - Protective component two, 421 - Protective cover, 422 - Support post, 423 - Hinge block, 424 - Bolt, 425 - Nut, 426 - Washer, 427 - Protrusion. Detailed Implementation

[0028] The preferred embodiments of this utility model are described in detail below, and a clear and complete explanation is given in conjunction with the accompanying drawings.

[0029] Please see Figures 1-7 This utility model provides a safety protection device for a ball mill.

[0030] It includes a drive device 200 installed on the front side of the ball mill 100 for driving the ball mill 100 to rotate, support frames 300 installed on the left and right sides of the ball mill 100 for supporting the ball mill 100, and a protective device 400 installed on the cylinder of the ball mill 100 for protecting the drive device 200.

[0031] The top of the ball mill 100 is provided with a cover 001 for opening the ball mill 100, so as to facilitate the opening of the ball mill 100 through the cover 001 and the maintenance and replacement of the liner inside the ball mill 100; a gear 102 for meshing with the drive assembly 220 is fixedly installed on the cylinder of the ball mill 100; support cylinders 101 are fixedly installed at the left and right ends of the ball mill 100, and the support cylinders 101 are connected to the support frame 300 through bearings to facilitate the rotation of the ball mill 100.

[0032] The drive unit 200 includes a drive assembly 220 disposed on the front side of the ball mill 100 for driving the ball mill 100 to rotate, and a support base 210 for supporting the drive assembly 220 is fixedly installed at the bottom end of the drive assembly 220.

[0033] The drive assembly 220 includes a motor 221 fixedly mounted on the top of the support base 210. A rotating shaft 222 for rotation is fixedly mounted on the right end of the motor 221, and the output shaft of the motor 221 is connected to the rotating shaft 222 via a coupling, so that the rotating shaft 222 can be driven to rotate when the motor 221 is working. A gear 223 for meshing with gear 102 is fixedly mounted on the right end of the rotating shaft 222. Thus, when it is necessary to use the ball mill 100 to grind materials, the materials can be added into the grinder 100 along the support cylinder 101. Then, the rotating shaft 222 is driven to rotate by the motor 221, and the grinding mill 100 can be driven to rotate under the meshing connection between gear 102 and gear 223.

[0034] The protective device 400 includes a first protective component 410 mounted on the ball mill 100 for protecting the drive assembly 220, and a second protective component 420 provided on the right side of the first protective component 410 for cooperating with the first protective component 410 to protect the drive assembly 220.

[0035] The protective component 410 includes a protective cover 411 fitted onto the ball mill 100 to protect gear 102 and gear 223. A number of fixing posts 412 are fixedly installed on the ring of the protective cover 411. The cross-section of the fixing post 412 is concave. There are two grooves 413 inside the fixing post 412. The two grooves 413 are symmetrically distributed on the left end of the fixing post 412. A dustproof net 414 for heat dissipation and ventilation of the protective cover 411 is provided on the left side of the protective cover 411.

[0036] The second protective component 420 includes a protective cover 421 for cooperating with the protective cover 411 to protect gear 102 and gear 223. The protective cover 421 is connected to the right support frame 300 to facilitate the support of the protective cover 421 and the protective cover 411 by the support frame 300. A rubber pad is embedded between the protective cover 411 and the protective cover 421. A support column 422 for cooperating with the fixed column 412 is fixedly installed on the ring of the protective cover 421. There are several support columns 422. A hinge block 423 for rotation is provided in the support column 422. The hinge block 423 can be inserted into the fixed column 412 around the support column 422.

[0037] A bolt 424 for insertion into a fixed post 412 is fixedly installed on the left end of the hinge block 423. A washer 426 is fitted on the shank of the bolt 424, and the washer 426 is located on the left side of the fixed post 412. A protrusion 427 for insertion into a groove 413 is fixedly installed on the right end of the washer 426. There are two protrusions 427, which are symmetrically welded to the washer 426. A nut 425 for fixing the protective cover 421 to the protective cover 411 is threaded onto the shank of the bolt 424. Thus, when protection is required for gear 102 and gear 223, The protective cover 411 can be moved closer to the protective cover 421, and then the hinge block 423 can be rotated around the support column 422 to insert the bolt into the fixing column 412. Then, the washer 426 can be put on the bolt 424, and at the same time, the two protrusions 427 can be inserted into the groove 413. Finally, the protective cover 411 can be fixed on the protective cover 421 by using the threaded connection between the nut 425 and the bolt 424. In this way, the gear 102 and gear 223 can be protected to prevent external cleaning water and large impurities from falling into the gear 102 and gear 223 and affecting the operation of the ball mill 100.

[0038] Based on the above description and accompanying drawings, those skilled in the art can understand and implement this utility model. Furthermore, any non-creative modifications made to this utility model by those skilled in the art without inventive effort are still within the protection scope of this utility model.

Claims

1. A safety protection device for a ball mill, characterized in that: It includes a drive device (200) installed on the front side of the ball mill (100) for driving the ball mill (100) to rotate, support frames (300) are provided on the left and right sides of the ball mill (100) for supporting the ball mill (100), and a protective device (400) is installed on the cylinder of the ball mill (100) for protecting the drive device (200); The drive device (200) includes a drive assembly (220) disposed on the front side of the ball mill (100) for driving the ball mill (100) to rotate, and a support base (210) for supporting the drive assembly (220) is fixedly installed at the bottom end of the drive assembly (220). The protective device (400) includes a first protective component (410) mounted on the ball mill (100) for protecting the drive assembly (220), and a second protective component (420) is provided on the right side of the first protective component (410) for cooperating with the first protective component (410) to protect the drive assembly (220).

2. The safety protection device for a ball mill according to claim 1, characterized in that: The ball mill (100) has a gear (102) fixedly installed on its cylinder for meshing with the drive assembly (220), and support cylinders (101) are fixedly installed at both ends of the ball mill (100).

3. The safety protection device for a ball mill according to claim 2, characterized in that: The drive assembly (220) includes a motor (221) fixedly mounted on the top of the support base (210). A rotating shaft (222) for rotation is fixedly mounted on the right end of the motor (221). A gear two (223) for meshing with gear one (102) is fixedly mounted on the right end of the rotating shaft (222).

4. A safety protection device for a ball mill according to claim 3, characterized in that: The first protective component (410) includes a protective cover (411) fitted on the ball mill (100) for protecting gear one (102) and gear two (223). A fixing post (412) is fixedly installed on the ring of the protective cover (411), and there are several fixing posts (412). A groove (413) is opened in the fixing post (412), and there are two grooves (413). A dustproof net (414) for heat dissipation and ventilation of the protective cover (411) is provided on the left side of the protective cover (411).

5. A safety protection device for a ball mill according to claim 4, characterized in that: The second protective component (420) includes a protective cover (421) for cooperating with the protective cover (411) to protect gear one (102) and gear two (223). A support column (422) for cooperating with the fixed column (412) is fixedly installed on the ring of the protective cover (421), and there are several support columns (422). A hinge block (423) for rotation is provided inside the support column (422).

6. A safety protection device for a ball mill according to claim 5, characterized in that: The left end of the hinge block (423) is fixedly installed with a bolt (424) for insertion into the fixed post (412). A washer (426) is fitted on the rod of the bolt (424) and the washer (426) is located on the left side of the fixed post (412). The right end of the washer (426) is fixedly installed with a protrusion (427) for insertion into the groove (413). A nut (425) for fixing the protective cover (421) onto the protective cover (411) is threaded onto the rod of the bolt (424).

7. A safety protection device for a ball mill according to claim 1, characterized in that: The ball mill (100) is provided with a cover (001) at the top for opening the ball mill (100).