Floor type grinding instrument
By designing a floor-standing grinder, the motor-driven turn of the turntable and pallet in reverse rotation, combined with centrifugal force and friction, the shortcomings of the desktop grinder under the demand for large-scale and high-efficiency grinding are solved, and efficient and high-speed grinding effect is achieved.
Patent Information
- Application Number
- CN202421798417.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2034-07-29
AI Technical Summary
Desktop grinders show shortcomings such as small capacity and insufficient power under large batch and high efficiency grinding requirements, and cannot meet experimental needs.
A floor-standing grinder is designed, including a grinding box, turntable and tray, with built-in motor and drive components. Through the reverse rotation of the turntable and tray, the grinding balls are used to efficiently grind materials in the grinding tank by centrifugal force and friction.
The grinding effect with high crushing degree is achieved, and the grinding rate is significantly improved through multiple sets of grinding tanks, and the grinding rate is greatly improved and the grinding needs of large batches and high efficiency are met.
Smart Images
Figure CN222930920U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of grinders, in particular to a floor-standing grinder. Background Art
[0002] In the fields of materials science, chemical analysis and geological exploration, grinders are an important experimental equipment widely used in the crushing, grinding and mixing of samples. There are many types of grinders on the market, among which desktop grinders are widely favored by users due to their small size and easy operation. However, with the expansion of experimental scale and the increase of grinding demand, desktop grinders gradually exposed shortcomings such as small capacity and insufficient power, and could not meet the needs of large-scale and high-efficiency grinding. Utility Model Content
[0003] The purpose of the utility model is to provide a floor-standing grinder to solve the problems raised in the above-mentioned background technology.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a floor-standing grinder, comprising a grinding box, a turntable and a tray, a box cover being hinged on one side of the top of the grinding box, the turntable being rotatably installed on the top of the grinding box, the tray being rotatably connected to the turntable, a motor being installed inside the grinding box, an output end of the motor being transmission-connected to a driving assembly for driving the turntable and the tray to rotate in opposite directions, a grinding assembly for grinding materials being provided on the tray, a limiting mechanism for limiting the grinding assembly being provided on the tray, a control panel being installed on the top of the grinding box, and a display screen and operation buttons being installed on the control panel.
[0005] Preferably, the driving assembly includes a rotating rod, a ring gear, a bracket, a sun gear, planetary gears and a planetary carrier, the outer wall of the bracket is connected to the inner wall of the ring gear, the bottom of the bracket is connected to the rotating rod, four planetary gears are meshingly connected in the ring gear, the four planetary gears are all meshingly linked to the sun gear, the top of the sun gear is connected to a turntable, the four planetary gears are all rotatably connected to the planetary carrier, the top of the planetary carrier is connected to the turntable, and the top of the planetary gears is connected to the tray.
[0006] Preferably, the grinding assembly comprises a grinding jar, a plurality of grinding balls are arranged in the grinding jar, the bottom of the grinding jar is tightly fitted with the top of the tray, and the top of the grinding jar is detachably connected with a jar cover.
[0007] Preferably, the limiting mechanism includes a limiting plate and a connecting seat. There are three limiting plates, and the three limiting plates are respectively connected to the three ends of the outer wall of the tray. A plurality of card slots are provided in the limiting plates along the vertical direction. Three clamping blocks are installed on the outer wall of the connecting seat along the circumferential direction. The clamping blocks are arranged in one-to-one correspondence with the limiting plates. The connecting seat is threadedly connected to the screw rod. The top of the screw rod is connected with a turning handle, and the bottom of the screw rod is connected with a pressing block.
[0008] Preferably, the bottom of the pressing block is tightly attached to the top of the can lid.
[0009] Preferably, universal wheels are installed at the four ends of the bottom of the grinding box, and a push rod is installed on one side of the box cover.
[0010] The technical effects and advantages of the present utility model: By placing the material in the grinding tank, inserting the clamping block corresponding to the card slot, and then turning the turning handle to lower the screw rod, so that the pressing block is tightly attached to the top of the can lid to limit the grinding tank. Then start the motor to drive the rotating rod to rotate, so that the toothed ring rotates accordingly, so that the planetary gear rotates in the same direction as the toothed ring, so that the sun gear rotates in the opposite direction to the planetary gear, so that the rotation direction of the grinding tank is opposite to that of the sun gear, releasing a large amount of kinetic energy, making the pulverization degree extremely high when the grinder grinds, and setting multiple groups of grinding tanks to grind simultaneously greatly improves the grinding rate. Description of the Drawings
[0011] Figure 1 is the overall structural schematic diagram of the present utility model;
[0012] Figure 2 is the structural schematic diagram of the turntable of the present utility model;
[0013] Figure 3 is the structural schematic diagram of the grinding mechanism of the present utility model;
[0014] Figure 4 is the structural schematic diagram of the grinding ball of the present utility model;
[0015] Figure 5 is the structural schematic diagram of the sun gear of the present utility model;
[0016] Figure 6 is the structural schematic diagram of the toothed ring of the present utility model.
[0017] In the figure: 1, grinding box; 2, box cover; 3, universal wheel; 4, push rod; 5, control panel; 6, display screen; 7, control button; 8, turntable; 9, limiting plate; 10, tray; 11, card slot; 12, grinding tank; 13, can lid; 14, pressing block; 15, screw rod; 16, clamping block; 17, connecting seat; 18, turning handle; 19, motor; 20, rotating rod; 21, toothed ring; 22, bracket; 23, sun gear; 24, planetary gear; 25, planetary carrier; 26, grinding ball. Detailed implementation mode
[0018] In order to make the implementation means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below with reference to specific illustrations. In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, an integral connection or a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and the interiors of two components can be communicated with each other.
[0019] Embodiment 1
[0020] As Figures 1-4 shown, a floor-standing grinding instrument includes a grinding box 1, a turntable 8 and a tray 10. One side of the top of the grinding box 1 is hinged with a box cover 2. The turntable 8 is rotatably installed on the top of the grinding box 1. The tray 10 is rotatably connected to the turntable 8. The tray 10 is provided with a grinding assembly for grinding materials, and the tray 10 is provided with a limiting mechanism for limiting the grinding assembly. A control panel 5 is installed on the top of the grinding box 1. A display screen 6 and a control button 7 are installed on the control panel 5. The control panel 5 can store 10 groups of parameters of rotation speed, grinding time, and interval time, which are combined for repetitive grinding work, and provides a multi-language graphic menu display guide. All relevant parameters can be stored or retrieved through the display screen 6 and one-key operation. The control button 7 is convenient for controlling the device, which is very convenient. Universal wheels 3 are installed at the four ends of the bottom of the grinding box 1. The setting of the universal wheels 3 can facilitate the movement of the grinding instrument. One side of the box cover 2 is installed with a push rod 4. The setting of the push rod 4 can facilitate the opening of the box cover 2.
[0021] In this embodiment, the grinding assembly includes a grinding tank 12. A number of grinding balls 26 are arranged in the grinding tank 12. The bottom of the grinding tank 12 is in close contact with the top of the tray 10. The top of the grinding tank 12 is detachably connected with a tank cover 13. A ring of snap rings is arranged at the top of the grinding tank 12, and a groove corresponding to the snap ring is arranged at the bottom of the tank cover 13. When the tank cover 13 is covered on the grinding tank 12, the tank cover 13 is not easy to shake around. When the grinding tank 12 rotates, the grinding balls 26 will roll in the grinding tank 12 due to the action of centrifugal force, collide with the materials placed in the grinding tank 12, and the materials will be ground into small particles during the impact process.
[0022] Furthermore, the limiting mechanism includes a limiting plate 9 and a connecting seat 17. There are three limiting plates 9, and the three limiting plates 9 are respectively connected to the three ends of the outer wall of the tray 10. A number of card slots 11 are provided in the limiting plate 9 along the vertical direction. Three clamping blocks 16 are installed on the outer wall of the connecting seat 17 along the circumferential direction. The clamping blocks 16 are made of an elastic material, and the width of the cross-section of the end of the clamping block 16 is the same as the width of the card slot 11. The width of the cross-section of the part other than the end of the clamping block 16 is greater than the width of the card slot 11. The clamping blocks 16 and the limiting plates 9 are arranged in one-to-one correspondence. The connecting seat 17 is threadedly connected to the screw rod 15. The top of the screw rod 15 is connected with a turning handle 18, and the bottom of the screw rod 15 is connected with a pressing block 14. The pressing block 14 is made of an elastic material to prevent the pressing block 14 from damaging the surface of the can lid 13. The bottom of the pressing block 14 is closely attached to the top of the can lid 13. When grinding, after placing the material in the grinding tank 12, cover the can lid 13 on the grinding tank 12, then bring the pressing block 14 close to the can lid 13, insert the three clamping blocks 16 into the three card slots 11 at the same horizontal height respectively, and then rotate the turning handle 18 to lower the screw rod 15 until the pressing block 14 closely fits the top of the can lid 13, so as to limit the grinding tank 12 and ensure its stability during operation.
[0023] Embodiment 2
[0024] On the basis of Embodiment 1, a further improvement is that, as Figures 5-6 shown in a floor-standing grinding instrument, a motor 19 is installed inside the grinding box 1, and the output end of the motor 19 is drivingly connected with a driving assembly that rotates the driving turntable 8 and the tray 10 in opposite directions.
[0025] In this embodiment, the driving component includes a rotating rod 20, a gear ring 21, a bracket 22, a sun gear 23, a planetary gear 24 and a planet carrier 25. The outer wall of the bracket 22 is connected to the inner wall of the gear ring 21, the bottom of the bracket 22 is connected to the rotating rod 20, four planetary gears 24 are meshed inside the gear ring 21, all four planetary gears 24 are meshed with the sun gear 23, the top of the sun gear 23 is connected to a turntable 8, all four planetary gears 24 are rotatably connected to the planet carrier 25, the top of the planet carrier 25 is connected to the turntable 8, and the top of the planetary gear 24 is connected to a tray 10. Starting the motor 19 drives the rotating rod 20 to rotate, and the rotating rod 20 drives the bracket 22 to rotate, causing the gear ring 21 to rotate accordingly. Due to the internal meshing connection between the gear ring 21 and the planetary gears 24, the four planetary gears 24 rotate in the same direction as the gear ring 21 along with the rotation of the gear ring 21, driving the tray 10 to rotate. Since all four planetary gears 14 are meshed with the sun gear 23, the sun gear 23 rotates in the opposite direction to the planetary gears 24, driving the turntable 8 to rotate. The four planetary gears 14 are rotatably connected to the planet carrier 25, and the rotation of the planetary gears 14 is supported by the planet carrier 25. The grinding tank 12 is located at the eccentric position of the bottom sun gear 23, and the grinding tank 12 rotates around its axis, which is exactly opposite to the rotation direction of the common sun gear 23. The rotation speed ratio of the sun gear 23 to the grinding tank 12 is generally 1:2 (or 1:2.5 or 1:3). When the grinding balls 26 in the grinding tank 12 move together with the grinding tank, they are affected by the superposition of the self-rotation deflection force. In this way, the movement of the grinding balls 26 generates high kinetic energy to break the sample. The centrifugal force acting on the grinding tank 12 drives the grinding balls 26 to move along the rotation direction. Due to the different speeds of the inner wall of the grinding tank 12 and the grinding balls 26, strong frictional force and impact action are generated between the sample and the tank wall, releasing a large amount of kinetic energy. The combination of this impact and frictional action makes the pulverization degree extremely high when the grinder grinds, and multiple groups of grinding tanks 12 are provided to grind simultaneously, greatly improving the grinding rate.
[0026] The technological process and working principle of the present utility model are as follows: When grinding materials, first place the materials in the grinding tank 12, cover the tank lid, insert the three clamping blocks 16 into the corresponding clamping grooves 11 respectively, and then rotate the turning handle 18 to make the screw rod 15 move downward until the bottom of the pressing block 14 is in close contact with the top of the tank lid 13, so that the grinding tank 12 can be fixed on the tray 10. Then start the motor 19 to drive the rotating rod 20 to rotate, so that the gear ring 21 rotates. Since the gear ring 21 is internally meshed with the planetary gear 24, the four planetary gears 14 rotate along the same direction as the rotation direction of the gear ring 21, driving the tray 10 to rotate. Since the four planetary gears 14 are all meshed with the sun gear 23, the sun gear 23 and the planetary gear 24 rotate in opposite directions, driving the turntable 8 to rotate. The four planetary gears 14 are rotationally connected to the planetary carrier 25, and the planetary carrier 25 supports the rotation of the planetary gears 14. The grinding tank 12 is located at the eccentric position of the bottom sun gear 23, and the grinding tank 12 rotates around its axis, which is exactly opposite to the rotation direction of the common sun gear 23. The rotation speed ratio of the sun gear 23 to the grinding tank 12 is generally 1:2 (or 1:2.5 or 1:3). When the grinding balls 26 in the grinding tank 12 move together with the grinding tank, they are affected by the superposition of the self-rotation deflection force. In this way, the movement of the grinding balls 26 generates high kinetic energy to break the samples. The centrifugal force acting on the grinding tank 12 drives the grinding balls 26 to move along the rotation direction. Since the speeds of the inner wall of the grinding tank 12 and the grinding balls 26 are different, strong frictional force and impact action are generated between the samples and the tank wall, releasing a large amount of kinetic energy. The combination of this impact and frictional action makes the pulverization degree of the grinder extremely high during grinding. And multiple groups of grinding tanks 12 are set to grind simultaneously, greatly improving the grinding rate.
[0027] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.
Claims
1. A floor-standing grinder, comprising a grinding box (1), a rotating disk (8) and a tray (10), characterized in that: A box cover (2) is hingedly connected to one side of the top of the grinding box (1); the turntable (8) is rotatably mounted on the top of the grinding box (1); the tray (10) is rotatably connected to the turntable (8); a motor (19) is mounted inside the grinding box (1); an output end of the motor (19) is transmission-connected to a drive assembly for driving the turntable (8) and the tray (10) to rotate in opposite directions; a grinding assembly for grinding materials is disposed on the tray (10); a limiting mechanism for limiting the position of the grinding assembly is disposed on the tray (10); a control panel (5) is mounted on the top of the grinding box (1); a display screen (6) and a control button (7) are mounted on the control panel (5).
2. A floor-standing grinder according to claim 1, characterized in that: The driving assembly comprises a rotating rod (20), a ring gear (21), a bracket (22), a sun gear (23), planetary gears (24) and a planet carrier (25); the outer wall of the bracket (22) is connected to the inner wall of the ring gear (21); the bottom of the bracket (22) is connected to the rotating rod (20); four planetary gears (24) are meshingly connected inside the ring gear (21); the four planetary gears (24) are all meshingly connected to the sun gear (23); the top of the sun gear (23) is connected to a rotating disk (8); the four planetary gears (24) are all rotatably connected to the planet carrier (25); the bottom of the planet carrier (25) is connected to the rotating disk (8); and the top of the planetary gears (24) is connected to the tray (10).
3. A floor-standing grinder according to claim 1, characterized in that: The grinding assembly comprises a grinding jar (12), a plurality of grinding balls (26) are arranged in the grinding jar (12), the bottom of the grinding jar (12) is tightly fitted with the top of the tray (10), and the top of the grinding jar (12) is detachably connected with a jar cover (13).
4. A floor-standing grinder according to claim 3, characterized in that: The limiting mechanism comprises a limiting plate (9) and a connecting seat (17). There are three limiting plates (9). The three limiting plates (9) are respectively connected to three ends of the outer wall of the tray (10). The limiting plates (9) are each provided with a plurality of slots (11) in a vertical direction. The outer wall of the connecting seat (17) is provided with three clamping blocks (16) in a circumferential direction. The clamping blocks (16) are arranged in a one-to-one correspondence with the limiting plates (9). The connecting seat (17) is threadedly connected to the screw rod (15). The top of the screw rod (15) is connected to a rotating handle (18), and the bottom of the screw rod (15) is connected to a pressing block (14).
5. A floor-standing grinder according to claim 4, characterized in that: The bottom of the lower pressing block (14) is arranged close to the top of the tank cover (13).
6. A floor-standing grinder according to claim 1, characterized in that: Universal wheels (3) are installed at the four ends of the bottom of the grinding box (1), and a push rod (4) is installed on one side of the box cover (2).