Grinding inner container structure of sand mill
By designing the outer shell, inner liner, power system, and cover plate mechanism of the sand mill, the problem of inconvenient disassembly and assembly of the inner liner was solved, improving cleaning and maintenance efficiency, and enhancing the sealing and power supply capabilities of the grinding process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2026-03-17
AI Technical Summary
The inner liner of existing sand mills is inconvenient to disassemble and assemble, which affects cleaning efficiency and maintenance difficulty.
A grinding inner liner structure was designed, comprising an outer shell mechanism, an inner liner mechanism, a power mechanism, and a cover plate mechanism. The outer shell mechanism supports each mechanism, the inner liner mechanism is easy to disassemble and assemble, the power mechanism provides grinding power, and the cover plate mechanism achieves sealing.
It enables convenient disassembly and assembly of the inner liner, improves the efficiency of cleaning and maintenance, and enhances the sealing and power supply capabilities of the grinding process.
Smart Images

Figure CN223996207U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sand mill technology, and in particular to a grinding inner liner structure for a sand mill. Background Technology
[0002] Grinding mills are mainly used for crushing and shaping soft or medium-hard materials, and are widely used in various fields such as ores, cement, refractory materials, and glass raw materials. They are particularly suitable for the production of high-hardness and abrasion-resistant materials. In the engineering field, they are ideal production equipment for manufactured sand, subbase materials, asphalt concrete, and cement concrete aggregates. In the mining field, they are widely used in the pre-grinding process, reducing the high-cost grinding load. The working principle of a grinding mill is mainly that the motor drives the reducer, causing the rotor to rotate. This causes the material inside the stator to be subjected to friction and impact forces, thus grinding the material to achieve the purpose of sand making. The inner liner of the grinding mill is a key part of the equipment, responsible for containing and protecting the contact between the grinding media and the material. The design, materials, and structure of the inner liner have a significant impact on the performance and service life of the grinding mill.
[0003] During prolonged use, sand mills require internal cleaning and may also experience damage necessitating disassembly. Existing sand mill inner liner designs are not convenient for disassembly and assembly, impacting cleaning efficiency. Therefore, we propose a new grinding inner liner structure for sand mills to address these issues. Utility Model Content
[0004] The purpose of this utility model is to provide a grinding inner liner structure for a sand mill. The outer shell mechanism can support various mechanisms and make rotation easier. The inner liner mechanism can grind items and is easier to disassemble and assemble, making cleaning and maintenance easier. The power mechanism can provide grinding power, and the cover plate mechanism can seal the device during grinding.
[0005] To achieve the above objectives, a grinding inner liner structure for a sand mill is provided, including an outer shell mechanism, an inner liner mechanism rotatably connected inside the outer shell mechanism, a power mechanism fixedly connected to the right side of the outer shell mechanism, and a cover plate mechanism fixedly connected to the left side of the outer shell mechanism.
[0006] Preferably, the outer shell mechanism includes a support column, a support plate, a protective shell, a mounting groove, rollers, bearings, and a fixing protrusion, with the support plate fixedly connected to the upper side of the support column.
[0007] Preferably, the protective shell is fixedly connected to the upper side of the support plate, the mounting groove is disposed on the inner wall of the protective shell, the roller is rotatably connected inside the mounting groove, the bearing is fixedly connected to the middle of the rear side plate of the protective shell, and the fixing protrusion is fixedly connected to the outer wall of the front side of the protective shell.
[0008] Preferably, the inner liner mechanism includes a grinding cylinder, a driving protrusion, a connecting column, a fixing groove, a connecting hole, and a threaded hole, wherein the grinding cylinder is rotatably connected to the outer wall of the roller.
[0009] Preferably, the driving protrusion is fixedly connected to the grinding cylinder wall, the connecting column is fixedly connected to the rear outer wall of the grinding cylinder, the connecting column is fixedly connected to the inside of the bearing, the fixing groove is located on the right side of the connecting column, the connecting hole is located on the front side of the fixing groove, and the threaded hole is located on the rear side of the fixing groove.
[0010] Preferably, the power mechanism includes a fixed frame, a rotating motor, a rotating rod, a connecting protrusion, a fixing through hole, and a fixing bolt. The fixed frame is fixedly connected to the lower side of the outer wall of the rear side plate of the protective shell. The rotating motor is fixedly connected to the upper side of the fixed frame. The rotating rod is fixedly connected to the output end of the rotating motor. The connecting protrusion is fixedly connected to the left side of the rotating rod. The fixing through hole is provided on the front wall of the connecting protrusion. The connecting protrusion is engaged inside the fixing groove. The fixing bolt passes through the connecting hole and is threadedly connected to the fixing through hole inside the threaded hole.
[0011] Preferably, the cover plate mechanism includes a cover plate, a handle, a connecting plate, and a rotating plate. The cover plate is snapped onto the outer wall of the front end of the protective shell. The handle is fixedly connected to the middle of the front side of the cover plate. The connecting plate is fixedly connected to the rear edge of the cover plate. The rotating plate is rotatably connected to the inner wall of the connecting plate. The connecting plate is snapped onto the outer wall of the fixed protrusion.
[0012] The beneficial effects of this utility model are as follows: the outer shell mechanism can support various mechanisms and make rotation easier; the inner liner mechanism can grind items and makes disassembly and assembly more convenient, making cleaning and maintenance easier; the power mechanism can provide grinding power; and the cover plate mechanism can seal the device during grinding.
[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0015] Figure 1 This is a perspective view of the grinding inner liner structure of a sand mill according to the present invention;
[0016] Figure 2 This is a schematic diagram of the outer shell mechanism of the grinding inner liner structure of a sand mill according to the present invention;
[0017] Figure 3 This is a schematic diagram of the front structure of the inner liner mechanism of a sand mill according to the present invention.
[0018] Figure 4 This is a schematic diagram of the rear structure of the inner liner mechanism of a sand mill according to the present invention.
[0019] Figure 5 This is a schematic diagram of the power mechanism structure of the grinding inner liner of a sand mill according to the present invention;
[0020] Figure 6 This is a schematic diagram of the cover plate mechanism of the grinding inner liner structure of a sand mill according to the present invention;
[0021] Legend:
[0022] 1. Outer shell mechanism; 101. Support column; 102. Support plate; 103. Protective shell; 104. Mounting groove; 105. Roller; 106. Bearing; 107. Fixing protrusion; 2. Inner liner mechanism; 201. Grinding cylinder; 202. Driving protrusion; 203. Connecting column; 204. Fixing groove; 205. Connecting hole; 206. Threaded hole; 3. Power mechanism; 301. Fixing frame; 302. Rotating motor; 303. Rotating rod; 304. Connecting protrusion; 305. Fixing through hole; 306. Fixing bolt; 4. Cover plate mechanism; 401. Cover plate; 402. Handle; 403. Connecting plate; 404. Rotating plate. Detailed Implementation
[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0024] Example:
[0025] Reference Figures 1 to 6 This utility model provides a grinding inner liner structure for a sand mill, which includes an outer shell mechanism 1, an inner liner mechanism 2 rotatably connected inside the outer shell mechanism 1, a power mechanism 3 fixedly connected to the right side of the outer shell mechanism 1, and a cover plate mechanism 4 fixedly connected to the left side of the outer shell mechanism 1.
[0026] The outer casing mechanism 1 includes a support column 101, a support plate 102, a protective casing 103, a mounting groove 104, rollers 105, a bearing 106, and a fixing protrusion 107. The support plate 102 is fixedly connected to the upper side of the support column 101. The protective casing 103 is fixedly connected to the upper side of the support plate 102. The mounting groove 104 is located on the inner wall of the protective casing 103. The rollers 105 are rotatably connected inside the mounting groove 104. The bearing 106 is fixedly connected to the middle of the rear side plate of the protective casing 103. The fixing protrusion 107 is fixedly connected to the front outer wall of the protective casing 103. The support column 101 and the support plate 102 support the various mechanisms. The protective casing 103 protects the internal devices. The rollers 105 roll inside the mounting groove 104, making it easier for the inner liner mechanism 2 to rotate. The fixing protrusion 107 connects to the cover plate mechanism 4.
[0027] The inner cylinder mechanism 2 includes a grinding cylinder 201, a driving protrusion 202, a connecting column 203, a fixing groove 204, a connecting hole 205, and a threaded hole 206. The grinding cylinder 201 is rotatably connected to the outer wall of the roller 105. The driving protrusion 202 is fixedly connected to the wall of the grinding cylinder 201, the connecting column 203 is fixedly connected to the rear outer wall of the grinding cylinder 201, and the connecting column 203 is fixedly connected inside the bearing 106. The fixing groove 204 is located on the right side of the connecting column 203, the connecting hole 205 is located on the front side of the fixing groove 204, and the threaded hole 206 is located on the rear side of the fixing groove 204. The grinding cylinder 201 provides the grinding position. The driving protrusion 202 drives the grinding ball and the object to be ground to rise. The grinding cylinder 201 rotates through the fixing groove 204 on the connecting column 203. The connecting hole 205 and the threaded hole 206 fix the power mechanism 3.
[0028] The power mechanism 3 includes a fixed frame 301, a rotating motor 302, a rotating rod 303, a connecting protrusion 304, a fixing through hole 305, and a fixing bolt 306. The fixed frame 301 is fixedly connected to the lower side of the outer wall of the rear side plate of the protective shell 103. The rotating motor 302 is fixedly connected to the upper side of the fixed frame 301. The rotating rod 303 is fixedly connected to the output end of the rotating motor 302. The connecting protrusion 304 is fixedly connected to the left side of the rotating rod 303. The fixing through hole 305 is located on the front wall of the connecting protrusion 304. The connecting protrusion 304 is engaged inside the fixing groove 204. The fixing bolt 306 passes through the connecting hole 205 and is threadedly connected to the fixing through hole 305 inside the threaded hole 206. The connecting protrusion 304, the fixing through hole 305, and the fixing bolt 306 are used to fix the inner liner mechanism 2. The rotating motor 302 and the rotating rod 303 provide power.
[0029] The cover plate mechanism 4 includes a cover plate 401, a handle 402, a connecting plate 403, and a rotating plate 404. The cover plate 401 is snapped onto the outer wall of the front end of the protective housing 103. The handle 402 is fixedly connected to the middle of the front side of the cover plate 401. The connecting plate 403 is fixedly connected to the rear edge of the cover plate 401. The rotating plate 404 is rotatably connected to the inner wall of the connecting plate 403. The connecting plate 403 is snapped onto the outer wall of the fixed protrusion 107. By lifting the cover plate 401 with the handle 402, the cover plate 401 is snapped onto the front end of the protective housing 103. By rotating the rotating plate 404, it is snapped onto the fixed protrusion 107.
[0030] Working principle: During use, place the grinding ball and the object to be ground inside the grinding cylinder 201. Then, lift the cover plate 401 using the handle 402 and clip it onto the front end of the protective shell 103. Rotate the rotating plate 404 to lock it onto the fixed protrusion 107. Start the rotating motor 302, which drives the rotating rod 303 to rotate. The grinding cylinder 201 rotates through the connecting protrusion 304 and the fixed groove 204. At this time, the roller 105 rolls inside the mounting groove 104, making the rotation of the grinding cylinder 201 easier. This causes the protrusion 202 to lift the grinding ball and the object to be ground, allowing for grinding. For disassembly, rotate the fixing bolt 306 to disengage it from the threaded hole 206, then remove it. Pull the grinding cylinder 201 to disengage the connecting protrusion 304 from the fixed groove 204 for cleaning or replacement.
[0031] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A grinding liner structure of a sand mill, comprising a shell mechanism (1), characterized in that, The shell mechanism (1) is rotatably connected with the inner container mechanism (2), the shell mechanism (1) is fixedly connected with the power mechanism (3) on the right side, the shell mechanism (1) is fixedly connected with the cover plate mechanism (4) on the left side, the shell mechanism (1) comprises a support column (101), a support plate (102), a protective shell (103), a mounting groove (104), a roller (105), a bearing (106), a fixed protrusion (107), the inner container mechanism (2) comprises a grinding cylinder (201), a driving protrusion (202), a connecting column (203), a fixed groove (204), a connecting hole (205), a threaded hole (206).
2. The grinding liner structure of a sander according to claim 1, wherein, The support plate (102) is fixedly connected to the upper side of the support column (101).
3. The grinding liner structure of a sand mill according to claim 2, wherein, The protective shell (103) is fixedly connected to the upper side of the support plate (102), the mounting groove (104) is arranged on the inner wall of the protective shell (103), the roller (105) is rotatably connected inside the mounting groove (104), the bearing (106) is fixedly connected to the middle of the rear plate of the protective shell (103), and the fixed protrusion (107) is fixedly connected to the front outer wall of the protective shell (103).
4. The grinding liner structure of a sand mill according to claim 2, wherein, The grinding cylinder (201) is rotatably connected to the outer wall of the roller (105).
5. The abrasive inner liner structure of a sander according to claim 4, wherein, The driving protrusion (202) is fixedly connected to the wall of the grinding cylinder (201), the connecting column (203) is fixedly connected to the rear outer wall of the grinding cylinder (201), the connecting column (203) is fixedly connected inside the bearing (106), the fixed groove (204) is arranged on the right side of the connecting column (203), the connecting hole (205) is arranged on the front side of the fixed groove (204), and the threaded hole (206) is arranged on the rear side of the fixed groove (204).
6. The abrasive inner liner structure of a sander according to claim 4, wherein The power mechanism (3) comprises a fixed frame (301), a rotating motor (302), a rotating rod (303), a connecting protrusion (304), a fixed through hole (305), a fixed bolt (306), the fixed frame (301) is fixedly connected to the outer wall of the rear plate of the protective shell (103) on the lower side, the rotating motor (302) is fixedly connected to the upper side of the fixed frame (301), the rotating rod (303) is fixedly connected to the output end of the rotating motor (302), the connecting protrusion (304) is fixedly connected to the left side of the rotating rod (303), the fixed through hole (305) is arranged on the front wall of the connecting protrusion (304), the connecting protrusion (304) is clamped inside the fixed groove (204), and the fixed bolt (306) is screwedly connected inside the threaded hole (206) through the connecting hole (205) and the fixed through hole (305).
7. The abrasive inner liner structure of a sander according to claim 2, wherein The cover plate mechanism (4) comprises a cover plate (401), a handle (402), a connecting plate (403), a rotating plate (404), the cover plate (401) is clamped on the front end outer wall of the protection shell (103), the handle (402) is fixedly connected on the front side middle of the cover plate (401), the connecting plate (403) is fixedly connected on the back side edge of the cover plate (401), the rotating plate (404) is rotatably connected on the inner wall of the connecting plate (403), and the connecting plate (403) is clamped on the outer wall of the fixed protrusion (107).