Grinding assembly of sand mill

By designing symmetrically distributed connecting rods and agitation blades in the sand mill grinding assembly, the collision rate of the grinding medium is improved, and the problem of long grinding time in the prior art is solved, and a more efficient grinding process is achieved.

CN222766425UActive Publication Date: 2025-04-18ANHUI JINSHENG NEW MATERIAL TECH CO LTD
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Patent Information

Application Number
CN202421351697.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-13
Publication Date
2025-04-18
Estimated Expiration
2034-06-13

AI Technical Summary

Technical Problem

The collision rate of the grinding media of existing sand mills is not high enough, resulting in a long grinding time.

Method used

A grinding assembly of a sand mill is designed, using a symmetrically distributed first connecting rod and a second connecting rod, and the surface is fixedly connected to the agitated leaves distributed at equal intervals. The surface of the agitated leaves is set up, and the agitated leaves are driven to rotate in reverse through the transmission group to increase the collision rate of the grinding medium.

Benefits of technology

By increasing the collision rate of the grinding medium, the grinding time is significantly shortened and the grinding efficiency is improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a grinding assembly of a sand mill, and relates to the technical field of sand mills, the grinding assembly comprises a main body, the inner wall of the main body is rotatably connected with a first connecting rod and a second connecting rod which are symmetrically distributed, and the surfaces of the first connecting rod and the second connecting rod are fixedly connected with stirring blades which are distributed at equal intervals; grooves are formed in the surfaces of the stirring blades, the opening direction of the grooves of the stirring blades on the first connecting rod is opposite to that of the second connecting rod, the front face of the body is detachably connected with a machine cover, and the back face of the machine cover is rotationally connected with the first connecting rod and the second connecting rod. The driving gear drives the first connecting rod to rotate, the driving gear drives the driven gear to rotate, and the driven gear and the belt wheel are coaxial, so that the belt wheel and the driven gear rotate synchronously, the belt wheel drives the belt wheel through the belt, the belt wheel drives the second connecting rod to rotate, and stirring blades on the first connecting rod and the second connecting rod rotate reversely.
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Description

Technical Field

[0001] The utility model relates to the technical field of sand mills, in particular to a grinding component of a sand mill. Background Art

[0002] Sand mill is the most adaptable, most advanced and most efficient grinding equipment. It has the narrowest grinding chamber, the smallest lever gap and the most intensive grinding energy. Combined with a high-performance cooling system and automatic control system, it can realize continuous processing and discharging of materials, greatly improving production efficiency.

[0003] The materials and grinding media are stirred by the high-speed rotating disperser, which produces strong collision, friction and shearing effects, which accelerate the grinding of particles and dispersed aggregates. The collision rate of the grinding media is not high enough, which makes the grinding time longer. Utility Model Content

[0004] The utility model aims to solve the disadvantages in the prior art that the collision rate of grinding media is not high enough, resulting in a long grinding time, and proposes a grinding component for a sand mill.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a grinding assembly of a sand mill comprises a main body, the inner wall of the main body is rotatably connected with a first connecting rod and a second connecting rod distributed symmetrically, the surfaces of the first connecting rod and the second connecting rod are fixedly connected with stirring blades distributed at equal intervals, the surfaces of the stirring blades are provided with grooves, the opening direction of the grooves of the stirring blades on the first connecting rod is opposite to that of the second connecting rod, the front side of the main body is detachably connected with a cover, the back side of the cover is rotatably connected with the first connecting rod and the second connecting rod, the front side of the cover is rotatably connected with a driving gear fixedly connected with the first connecting rod, the front side of the cover is rotatably connected with a pulley fixedly connected with the second connecting rod, and the front side of the cover is rotatably connected with a transmission group.

[0006] As a further description of the above technical solution:

[0007] The transmission group includes a driven gear meshed with the driving gear and a pulley connected to the pulley through a belt drive.

[0008] As a further description of the above technical solution:

[0009] An internal thread sleeve is fixedly connected to the front of the machine cover, and a blocking cover is detachably connected to the interior of the internal thread sleeve via bolts.

[0010] As a further description of the above technical solution:

[0011] A driving motor is fixedly connected to the front side of the baffle, and an output end of the driving motor passes through the baffle and is transmission-connected to the driving gear.

[0012] As a further description of the above technical solution:

[0013] A feed pipe communicating with the interior of the main body is fixedly connected to the bottom of the main body, and a discharge pipe communicating with the interior of the main body is fixedly connected to the inner wall of the main body away from the feed pipe.

[0014] As a further description of the above technical solution:

[0015] The main body comprises a shell, and a connecting column is fixedly connected to the inner wall of the shell.

[0016] As a further description of the above technical solution:

[0017] The inner wall of the shell is fixedly connected with an inner cavity through the connecting column, and the surface of the inner cavity is fixedly connected with evenly distributed heat sinks.

[0018] As a further description of the above technical solution:

[0019] The surface of the heat sink is provided with heat dissipation grooves distributed at equal intervals, and the side surface of the heat sink is provided with heat dissipation holes staggered with the heat dissipation grooves.

[0020] As a further description of the above technical solution:

[0021] The upper surface of the shell is fixedly connected with a water inlet pipe communicating with the shell and the inner cavity.

[0022] As a further description of the above technical solution:

[0023] The upper surface of the shell is fixedly connected with a water outlet pipe which is in communication with the shell and the inner cavity and is far away from the water inlet pipe.

[0024] The utility model has the following beneficial effects:

[0025] 1. Compared with the prior art, the grinding assembly of the sand mill, the driving motor drives the driving gear to rotate, the driving gear drives the first connecting rod to rotate, the driving gear drives the driven gear to rotate, the driven gear is coaxial with the pulley, so the pulley and the driven gear rotate synchronously, the pulley drives the pulley through the belt, the pulley drives the second connecting rod to rotate, so that the stirring blades on the first connecting rod and the second connecting rod rotate in opposite directions, and when the stirring blades rotate, the grinding media inside the main body are thrown toward each other through the groove, thereby increasing the collision rate of the grinding media and increasing the grinding speed.

[0026] 2. Compared with the prior art, the grinding assembly of the sand mill uses a stirring blade to drive the grinding medium to move. When the grinding medium has not moved to the point where the stirring blade is away from the first connecting rod and the second connecting rod, the groove binds the grinding medium inside the stirring blade. The stirring blade continuously drives the grinding medium, which has a greater acceleration effect on the grinding medium and increases the speed of the grinding medium.

[0027] 3. Compared with the prior art, the grinding assembly of the sand mill uses a water inlet pipe to guide cooling water into the space between the outer shell and the inner cavity, and then discharges it from the water outlet pipe. The inner cavity is cooled by the cooling water, and the heat sink increases the surface area of ​​the inner cavity, thereby improving the heat dissipation efficiency. The heat dissipation holes and heat dissipation grooves increase the contact area of ​​the heat sink, thereby improving the heat dissipation capacity of the heat sink. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the overall structure of the grinding assembly of the sand mill proposed by the utility model;

[0029] Figure 2 This is a schematic diagram of the internal structure of the grinding assembly of the sand mill proposed by the utility model;

[0030] Figure 3 It is a partial enlarged view of the first connecting rod of the grinding assembly of the sand mill proposed by the utility model;

[0031] Figure 4 It is a partial enlarged view of the second connecting rod of the grinding assembly of the sand mill proposed by the utility model;

[0032] Figure 5 This is a schematic diagram of the internal structure of the baffle cover of the grinding assembly of the sand mill proposed by the utility model;

[0033] Figure 6 This is a cross-sectional view of the heat sink of the grinding assembly of the sand mill proposed by the utility model.

[0034] Legend:

[0035] 1. Main body; 2. First connecting rod; 3. Second connecting rod; 4. Stirring blade; 5. Groove; 6. Machine cover; 7. Shield; 8. Driving gear; 9. Transmission group; 10. Pulley; 11. Driving motor; 12. Internal threaded sleeve; 13. Feed pipe; 14. Discharge pipe; 15. Outer shell; 16. Connecting column; 17. Inner cavity; 18. Heat sink; 19. Heat sink; 20. Heat dissipation hole; 21. Water inlet pipe; 22. Water outlet pipe. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0038] Example:

[0039] Reference Figure 1-6The grinding assembly of the sand mill provided by the utility model comprises a main body 1, the inner wall of the main body 1 is rotatably connected with a symmetrically distributed first connecting rod 2 and a second connecting rod 3, the surfaces of the first connecting rod 2 and the second connecting rod 3 are fixedly connected with stirring blades 4 distributed at equal intervals, and the surface of the stirring blade 4 is provided with a groove 5. When the stirring blade 4 rotates, the stirring blade 4 drives the grinding medium to move. When the grinding medium has not moved to the position where the stirring blade 4 is far away from the first connecting rod 2 and the second connecting rod 3, the groove 5 binds the grinding medium inside the stirring blade 4. The stirring blade 4 continuously drives the grinding medium, which has a greater acceleration effect on the grinding medium. The opening direction of the groove 5 of the stirring blade 4 on the first connecting rod 2 is opposite to that of the second connecting rod 3. The front side of the main body 1 is detachably connected with a cover 6, the back side of the cover 6 is rotatably connected with the first connecting rod 2 and the second connecting rod 3, the front side of the cover 6 is rotatably connected with a driving gear 8 fixedly connected to the first connecting rod 2, the front side of the cover 6 is rotatably connected with a pulley 10 fixedly connected to the second connecting rod 3, and the front side of the cover 6 is rotatably connected with a transmission group 9, which includes a transmission group 9 with a driving gear 8 fixedly connected to the first connecting rod 2. The driven gear meshing with the gear 8 and the pulley connected to the pulley 10 by belt transmission, the front of the machine cover 6 is fixedly connected with an internal threaded sleeve 12, and the interior of the internal threaded sleeve 12 is detachably connected with a shield 7 by bolts. The shield 7 shields the transmission group 9, the pulley 10 and the driving gear 8, so that the transmission group 9, the pulley 10 and the driving gear 8 are not easy to injure the staff. The front of the shield 7 is fixedly connected with a driving motor 11, and the output end of the driving motor 11 is connected to the driving gear 8 through the shield 7. Start the driving motor 11, the driving motor 11 drives the driving gear 8 to rotate, the driving gear 8 drives the first connecting rod 2 to rotate, and the driving gear 8 drives the driven gear to rotate. The driven gear is coaxial with the pulley, so the pulley and the driven gear rotate synchronously, the pulley drives the pulley 10 through the belt, and the pulley 10 drives the second connecting rod 3 to rotate, so that the stirring blades 4 on the first connecting rod 2 and the second connecting rod 3 rotate in the opposite direction. When the stirring blade 4 rotates, the grinding medium inside the main body 1 is thrown toward each other through the groove 5, thereby increasing the collision rate of the grinding medium and the grinding speed.

[0040] The bottom of the main body 1 is fixedly connected with a feed pipe 13 connected to the inside of the main body 1, and the inner wall of the main body 1 and away from the feed pipe 13 is fixedly connected with a discharge pipe 14 connected to the inside of the main body 1. The raw material to be ground is introduced from the feed pipe 13 into the inside of the main body 1 for grinding, and then led out from the discharge pipe 14 for circulation, thereby forming a circulation grinding. The main body 1 includes a shell 15, the inner wall of the shell 15 is fixedly connected with a connecting column 16, the inner wall of the shell 15 is fixedly connected with an inner cavity 17 through the connecting column 16, the surface of the inner cavity 17 is fixedly connected with evenly distributed heat sinks 18, and the surface of the heat sink 18 is provided with heat dissipation grooves 19 distributed at equal intervals for heat dissipation. A heat dissipation hole 20 staggered with the heat dissipation groove 19 is provided on the side of the sheet 18, a water inlet pipe 21 communicating with the shell 15 and the inner cavity 17 is fixedly connected to the upper surface of the shell 15, and a water outlet pipe 22 communicating with the shell 15 and the inner cavity 17 and away from the water inlet pipe 21 is fixedly connected to the upper surface of the shell 15. Cooling water is introduced into between the shell 15 and the inner cavity 17 through the water inlet pipe 21 and then discharged from the water outlet pipe 22. The inner cavity 17 is cooled by the cooling water. The heat sink 18 increases the surface area of ​​the inner cavity 17, thereby improving the heat dissipation efficiency. The heat dissipation holes 20 and the heat dissipation grooves 19 increase the contact area of ​​the heat sink 18, thereby improving the heat dissipation capacity of the heat sink 18.

[0041] Working principle: the raw material to be ground is introduced into the main body 1 from the feed pipe 13 for grinding, and then discharged from the discharge pipe 14, and cooling water is introduced between the shell 15 and the inner cavity 17 through the water inlet pipe 21, and the inner cavity 17 is cooled by the cooling water, and the heat sink 18 increases the surface area of ​​the inner cavity 17, thereby improving the heat dissipation efficiency, and the heat dissipation holes 20 and the heat dissipation grooves 19 increase the contact area of ​​the heat sink 18, thereby improving the heat dissipation capacity of the heat sink 18, and starting the drive motor 11, the drive motor 11 drives the drive gear 8 to rotate, the drive gear 8 drives the first connecting rod 2 to rotate, and the drive gear 8 drives the driven gear to rotate, and the driven gear and the pulley The belt pulley 10 is driven by the belt, and the belt pulley 10 drives the second connecting rod 3 to rotate, so that the stirring blades 4 on the first connecting rod 2 and the second connecting rod 3 rotate in opposite directions. When the stirring blades 4 rotate, the grinding media inside the main body 1 are thrown toward each other through the grooves 5, thereby increasing the collision rate of the grinding media and the grinding speed. The stirring blades 4 drive the grinding media to move. When the grinding media has not moved to the position where the stirring blades 4 are far away from the first connecting rod 2 and the second connecting rod 3, the grooves 5 bind the grinding media inside the stirring blades 4, and the stirring blades 4 continue to drive the grinding media, which has a greater acceleration effect on the grinding media.

[0042] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A grinding assembly for a sand mill, comprising a main body (1), characterized in that: The inner wall of the main body (1) is rotatably connected with a symmetrically distributed first connecting rod (2) and a second connecting rod (3); the surfaces of the first connecting rod (2) and the second connecting rod (3) are fixedly connected with stirring blades (4) distributed at equal intervals; the surfaces of the stirring blades (4) are provided with grooves (5); the opening direction of the grooves (5) of the stirring blades (4) on the first connecting rod (2) is opposite to that of the second connecting rod (3); the front of the main body (1) is detachably connected with a cover (6); the back of the cover (6) is rotatably connected with the first connecting rod (2) and the second connecting rod (3); the front of the cover (6) is rotatably connected with a driving gear (8) fixedly connected to the first connecting rod (2); the front of the cover (6) is rotatably connected with a pulley (10) fixedly connected to the second connecting rod (3); and the front of the cover (6) is rotatably connected with a transmission group (9).

2. The grinding assembly of the sand mill according to claim 1, characterized in that: The transmission group (9) comprises a driven gear meshing with the driving gear (8) and a pulley connected to the pulley (10) via a belt drive.

3. The grinding assembly of the sand mill according to claim 2, characterized in that: An internal thread sleeve (12) is fixedly connected to the front of the machine cover (6), and a baffle (7) is detachably connected to the interior of the internal thread sleeve (12) via bolts.

4. The grinding assembly of the sand mill according to claim 3, characterized in that: A driving motor (11) is fixedly connected to the front of the baffle cover (7), and an output end of the driving motor (11) passes through the baffle cover (7) and is transmission-connected to the driving gear (8).

5. The grinding assembly of the sand mill according to claim 1, characterized in that: A feed pipe (13) communicating with the interior of the main body (1) is fixedly connected to the bottom of the main body (1), and a discharge pipe (14) communicating with the interior of the main body (1) is fixedly connected to the inner wall of the main body (1) away from the feed pipe (13).

6. The grinding assembly of the sand mill according to claim 1, characterized in that: The main body (1) comprises an outer shell (15), and a connecting column (16) is fixedly connected to the inner wall of the outer shell (15).

7. The grinding assembly of the sand mill according to claim 6, characterized in that: The inner wall of the outer shell (15) is fixedly connected to an inner cavity (17) via the connecting column (16), and the surface of the inner cavity (17) is fixedly connected to evenly distributed heat sinks (18).

8. The grinding assembly of the sand mill according to claim 7, characterized in that: The surface of the heat sink (18) is provided with heat dissipation grooves (19) distributed at equal intervals, and the side surface of the heat sink (18) is provided with heat dissipation holes (20) staggered from the heat dissipation grooves (19).

9. The grinding assembly of the sand mill according to claim 8, characterized in that: A water inlet pipe (21) communicating between the outer shell (15) and the inner cavity (17) is fixedly connected to the upper surface of the outer shell (15).

10. The grinding assembly of the sand mill according to claim 9, characterized in that: A water outlet pipe (22) is fixedly connected to the upper surface of the outer shell (15), the water outlet pipe (22) being in communication with the outer shell (15) and the inner cavity (17) and being away from the water inlet pipe (21).