An ultrafine grinder

Abstract

This utility model discloses an ultrafine pulverizer in the field of pulverizer technology, including a pulverizing chamber with a multi-cavity inner ring installed on its inner wall. A rotating drum is rotatably connected to the center of the pulverizing chamber. One end of the rotating drum extends out of the pulverizing chamber and is equipped with a rotating drum drive assembly. The other end of the rotating drum is located inside the pulverizing chamber and is equipped with a pulverizing component. A turntable disassembly assembly is provided between the pulverizing component and the rotating drum. A door is hinged to the front of the pulverizing chamber, and a feed pipe is installed on the outer side of the door. One end of the feed pipe is connected to an air inlet pipe, and a material receiving port is opened at the top of the feed pipe near the pulverizing chamber. Through the coordinated arrangement of the rotating drum, pulverizing component, door, and turntable disassembly assembly, this utility model allows for easy removal and replacement of the pulverizing component when it becomes damaged after prolonged use. The operator can open the door and use the turntable disassembly assembly to release the fixing effect on the pulverizing component, thereby improving its practicality.

Description

Technical Field

[0001] This utility model relates to the technical field of pulverizers, and in particular to an ultrafine pulverizer. Background Technology

[0002] Ultrafine pulverizers are machines that crush large solid raw materials to the required size. They are widely used in various fields such as food, pharmaceuticals, and feed. After being processed by the pulverizer, the materials are finally formed into ultrafine powder to ensure high quality and meet the requirements of use.

[0003] Patent publication number CN113617458A discloses a novel ultrafine pulverizer, including a fixed base, a support, a pulverizing mechanism, a transmission mechanism, a feeding mechanism, and a cyclone separator. The pulverizing mechanism includes a pulverizing chamber, a pulverizing disc, and an internal gear ring. The pulverizing chamber is mounted on the support, and the pulverizing disc is disposed in the pulverizing chamber. The pulverizing disc is provided with multiple pulverizing blades. The transmission mechanism is disposed on the fixed base and is connected to the pulverizing disc to drive the pulverizing disc to rotate. The internal gear ring is fitted into the inner wall of the pulverizing chamber, and the inner wall of the internal gear ring is provided with multiple polygonal holes. The front and rear sides of the pulverizing chamber are respectively provided with a feed inlet and a discharge outlet. The distance between the feed inlet and the rotation center line is less than the distance between the discharge outlet and the rotation center line. The feed inlet is connected to the feeding mechanism, and the discharge outlet is connected to the cyclone separator through a pipe. This invention can significantly improve the uniformity and efficiency of material crushing, effectively increase production capacity, and reduce the loss of nutrients and effective components in materials. However, in the above-mentioned crusher, the crushing disc is fixedly installed inside the crushing chamber. When the crushing disc is damaged after long-term use, it cannot be replaced, making the crusher unusable and reducing its practicality. Utility Model Content

[0004] To address the problem mentioned above where the grinding disc is fixedly installed inside the grinding chamber of a pulverizer, making it impossible to replace when the disc is damaged after prolonged use and rendering the pulverizer unusable, thus reducing its practicality, this invention provides an ultrafine pulverizer.

[0005] This utility model provides an ultrafine pulverizer, which adopts the following technical solution:

[0006] An ultrafine pulverizer includes a pulverizing chamber with a multi-cavity inner ring installed on its inner wall. A rotating drum is rotatably connected to the center of the pulverizing chamber. One end of the rotating drum extends out of the pulverizing chamber and is equipped with a rotating drum drive assembly. The other end of the rotating drum is located inside the pulverizing chamber and is equipped with a pulverizing component. A turntable disassembly assembly is provided between the pulverizing component and the rotating drum. A door is hinged to the front side of the pulverizing chamber. A feed pipe is installed on the outer side of the door. One end of the feed pipe is connected to an air inlet pipe. A receiving port is opened on the top of the feed pipe near the pulverizing chamber. A discharge pipe is connected to the upper end of the pulverizing chamber away from the door. A feeding port is opened on the door corresponding to the rotation center of the pulverizing component and is connected to the feed pipe. A feeding assembly is provided on the top of the pulverizing chamber.

[0007] By adopting the above technical solution, the material enters the feed pipe through the feeding port via the feeding component, and then enters the crushing chamber through the feeding port. At the same time, the rotating drum drive component drives the rotating drum to rotate, which in turn drives the crushing component to rotate. Under the dual action of the crushing component and the multi-chamber inner ring, the material undergoes collision, shearing, and hammering. After collision, shearing, and hammering, the material becomes finer and finer. At the same time, clean cold air from the outside is introduced through the air inlet pipe. The material that has reached a certain fineness is discharged from the crushing chamber through the discharge pipe under the action of centrifugal force and air pressure. When the crushing component is damaged after long-term use, the operator can open the door and use the turntable disassembly and assembly component to release the fixing effect on the crushing component, thereby enabling the entire crushing component to be disassembled and replaced, improving the practicality of the crusher.

[0008] Optionally, a base plate is installed at the bottom of the crushing chamber, and pre-drilled holes are provided at the four corners of the top of the base plate.

[0009] By adopting the above technical solution, bolts can be inserted into the reserved holes to fix the base plate in place.

[0010] Optionally, the inner ring of the multi-cavity ring has several polygonal holes inside.

[0011] By adopting the above technical solution, the material is crushed through collision, shearing, and hammering under the dual action of the crushing component and the polygonal holes on the inner ring of the multi-cavity.

[0012] Optionally, a guide seat is installed on the side of the gate body away from the feed pipe. The guide seat is semi-circular and inclined towards the crushing component.

[0013] By adopting the above technical solution and setting the guide seat, the space inside the multi-cavity inner ring is compressed, which allows the material to come into more full contact with the crushing component.

[0014] Optionally, the rotary drum drive assembly includes a stepper motor, which is installed on the side of the crushing chamber away from the door. A rotating shaft is installed on the power output end of the stepper motor, and a second gear is installed on the end of the rotating shaft away from the stepper motor. The top of the second gear is meshed with a first gear, and the first gear is sleeved on the outside of the rotary drum.

[0015] By adopting the above technical solution, when the stepper motor is working, it drives the second gear to rotate through the rotating shaft. The rotation of the second gear drives the first gear to rotate, which in turn drives the drum to rotate.

[0016] Optionally, the crushing assembly includes a turntable, a sleeve is installed in the middle of the turntable, the sleeve is fitted on the outside of the turntable, a number of large blades are connected to the side of the turntable near the door, and a number of small blades are connected to the side of the turntable away from the large blades.

[0017] By adopting the above technical solution, when the drum rotates, it drives the turntable to rotate. At the same time, the turntable rotates, driving the large blades and small blades to rotate, thereby enabling the crushing of materials.

[0018] Optionally, the turntable assembly includes a stop block, which is fixedly sleeved on the outside of the rotating cylinder. A connecting plate is installed inside the rotating cylinder on the side near the door. Mounting plates are installed on the top and bottom of the connecting plate on the side near the door. A movable stop bar is connected to the opposite ends of the two sets of mounting plates. A spring is connected between the two sets of mounting plates. A toggle rod is connected to the opposite ends of the two sets of mounting plates on the side away from the connecting plate. The toggle rod extends out of the rotating cylinder from the opposite end of the mounting plate. A toggle rod limiting groove matching the toggle rod is provided on the side of the rotating cylinder near the door. A mounting plate sliding assembly is provided between the mounting plate and the connecting plate.

[0019] By adopting the above technical solution, when it is necessary to disassemble the entire crushing component, the operator presses the two sets of levers. When the levers move, they drive the two sets of mounting plates to move and move closer to each other. At this time, the spring is in a compressed state. While the two sets of mounting plates are moving, they also drive the two sets of movable stop levers to move until the two sets of movable stop levers retract into the inside of the rotating drum. At this time, the crushing component is pulled outward, so that the crushing component is separated from the stop block, thereby enabling the crushing component to be disassembled from the rotating drum and replaced.

[0020] Optionally, the mounting plate sliding assembly includes two sets of pulleys, which are rotatably mounted on one end of the two mounting plates away from the actuating lever. The connecting plate has a groove on the side near the door that slides with the pulleys.

[0021] By adopting the above technical solution, the mounting plate slides inside the slide groove through the pulley when it moves, thus making the mounting plate move more smoothly.

[0022] Optionally, the feeding assembly includes a support plate connected to the top of the crushing chamber on the side opposite to the door. A feeding cylinder is installed on the top of the support plate. A screw conveyor is rotatably connected to the inner wall of the feeding cylinder. A drive motor for driving the screw conveyor to rotate is installed on the outer side of the feeding cylinder. A guide pipe is connected to one end of the top of the feeding cylinder. A feeding cylinder is connected to the top of the guide pipe. The end of the feeding cylinder matches the receiving port on the feed pipe.

[0023] By adopting the above technical solution, the material to be crushed is added into the inside of the feeding cylinder and the drive motor is started. The material enters the inside of the conveying cylinder through the guide pipe. Under the drive of the drive motor, the screw conveyor rotates at a constant speed, thereby realizing that the material is output from the conveying cylinder at a constant speed and enters the inside of the feeding pipe through the receiving port.

[0024] In summary, this utility model has at least one of the following beneficial effects:

[0025] By using a combination of a rotating drum, crushing component, door, and turntable disassembly assembly, when the crushing component is damaged after prolonged use, the operator can open the door and use the turntable disassembly assembly to release the fixing effect on the crushing component, thus allowing the crushing component to be removed from the rotating drum and replaced. When the crushing component is damaged, it is not necessary to replace the entire device, which improves the practicality of the device.

[0026] By coordinating the rotating drum, the rotating drum drive assembly, and the crushing assembly, the material can be crushed. Furthermore, the feed inlet corresponds to the rotation center of the crushing assembly, allowing the material entering through the feed inlet to collide and shear more fully with the crushing assembly, thus improving the crushing efficiency. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a structural diagram of the door of this utility model in the open state;

[0029] Figure 2 This is a structural diagram of the door in the closed state of this utility model;

[0030] Figure 3 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0031] Figure 4This is a front view structural diagram of the door body of this utility model.

[0032] In the diagram: 1. Feeding assembly; 101. Feeding cylinder; 102. Guide pipe; 103. Screw conveyor; 104. Drive motor; 105. Conveying cylinder; 106. Support plate; 2. Multi-cavity inner ring; 3. Air inlet pipe; 4. Discharge pipe; 5. Crushing chamber; 6. Rotary drum; 7. Rotary drum drive assembly; 701. First gear; 702. Stepper motor; 703. Rotating shaft; 704. Second gear; 8. Crushing assembly; 801. Turntable; 802. Large blade; 803. Small blade; 9. Reserved hole; 10. Base plate; 11. Feed inlet; 12. Guide seat; 13. Door body; 14. Receiving port; 15. Feed pipe; 16. Turntable assembly / disassembly assembly; 1601. Stop block; 1602. Connecting plate; 1603. Movable stop bar; 1604. Mounting plate; 1605. Actuating rod; 1606. Spring; 1607. Actuating rod limiting groove; 17. Mounting plate sliding assembly; 1701. Pulley; 1702. Slide groove. Detailed Implementation

[0033] The following is in conjunction with the appendix Figures 1-4 The present invention will be described in further detail below.

[0034] Please refer to the attached diagram in the instruction manual. Figure 1 and Figure 2 This utility model provides an embodiment of an ultrafine pulverizer, comprising a pulverizing chamber 5, a multi-cavity inner ring 2 installed on the inner wall of the pulverizing chamber 5, and a base plate 10 fixedly installed at the bottom of the pulverizing chamber 5. Pre-drilled holes 9 are provided at the four corners of the top of the base plate 10. Bolts are inserted through the pre-drilled holes 9 to fix the base plate 10 in place. The multi-cavity inner ring 2 has several polygonal holes inside. The collision, shearing, and hammering of the material are achieved through the combined action of the pulverizing component 8 and the polygonal holes on the multi-cavity inner ring 2, thereby pulverizing the material.

[0035] Please refer to the attached diagram in the instruction manual. Figure 1 and Figure 2 A rotating drum 6 is rotatably connected to the middle of the crushing chamber 5. One end of the rotating drum 6 extends out of the crushing chamber 5 and is equipped with a rotating drum drive assembly 7. The rotating drum drive assembly 7 includes a stepper motor 702, which is fixedly installed on the side of the crushing chamber 5 away from the door 13. A rotating shaft 703 is fixedly installed at the power output end of the stepper motor 702. A second gear 704 is fixedly installed at the end of the rotating shaft 703 away from the stepper motor 702. A first gear 701 is meshed with the top of the second gear 704, and the first gear 701 is fixedly sleeved on the outside of the rotating drum 6. When the stepper motor 702 is working, it drives the second gear 704 to rotate through the rotating shaft 703. The rotation of the second gear 704 drives the first gear 701 to rotate, which in turn drives the rotating drum 6 to rotate.

[0036] Please refer to the attached diagram in the instruction manual. Figure 1 The other end of the rotating drum 6 is located inside the crushing chamber 5 and is equipped with a crushing assembly 8. The crushing assembly 8 includes a turntable 801, with a sleeve installed in the middle of the turntable 801. The sleeve is movably fitted onto the outside of the rotating drum 6. Several large blades 802 are fixedly connected to the side of the turntable 801 near the door 13, and several small blades 803 are fixedly connected to the side of the turntable 801 away from the large blades 802. When the rotating drum 6 rotates, it drives the turntable 801 to rotate. The rotation of the turntable 801 simultaneously drives the large blades 802 and the small blades 803 to rotate, thereby enabling the crushing of materials.

[0037] Please refer to the attached diagram in the instruction manual. Figure 1 and Figure 3 A turntable disassembly assembly 16 is provided between the crushing component 8 and the rotating drum 6. The turntable disassembly assembly 16 includes a stop block 1601, which is fixedly sleeved on the outside of the rotating drum 6. A connecting plate 1602 is fixedly installed inside the rotating drum 6 on the side near the door 13. Mounting plates 1604 are slidably installed on the top and bottom of the connecting plate 1602 on the side near the door 13. Movable stop bars 1603 are fixedly connected to the opposite ends of the two sets of mounting plates 1604. A spring 1606 is fixedly connected between the mounting plates 1604. A toggle lever 1605 is fixedly connected to one end of each mounting plate 1604 away from the connecting plate 1602. The end of the toggle lever 1605 away from the mounting plate 1604 extends out of the rotating cylinder 6. A toggle lever limiting groove 1607 matching the toggle lever 1605 is provided on the side of the rotating cylinder 6 near the door body 13. A mounting plate sliding assembly 17 is provided between the mounting plate 1604 and the connecting plate 1602. When it is necessary to disassemble the crushing assembly 8 as a whole, the operator presses the two sets of levers 1605. When the levers 1605 move, they drive the two sets of mounting plates 1604 to move and move closer to each other. At this time, the spring 1606 is in a compressed state. While the two sets of mounting plates 1604 are moving, they also drive the two sets of movable stop levers 1603 to move until the two sets of movable stop levers 1603 retract into the inside of the rotating drum 6. At this time, the crushing assembly 8 is pulled outward, so that the crushing assembly 8 is separated from the stop block 1601, thereby allowing the crushing assembly 8 to be removed from the rotating drum 6 and replaced.

[0038] Please refer to the attached diagram in the instruction manual. Figure 1 and Figure 3 The mounting plate sliding assembly 17 includes two sets of pulleys 1701, which are rotatably mounted on the ends of the two mounting plates 1604 opposite to the actuating lever 1605. A groove 1702 is provided on the side of the connecting plate 1602 near the door body 13, which slides in conjunction with the pulleys 1701. When the mounting plate 1604 moves, it slides within the groove 1702 via the pulleys 1701, thus making the movement of the mounting plate 1604 smoother.

[0039] Please refer to the attached diagram in the instruction manual. Figure 1 , Figure 2 and Figure 4 A door 13 is hinged to the front of the crushing chamber 5. A feed pipe 15 is fixedly installed on the outer side of the door 13. A guide seat 12 is fixedly installed on the side of the door 13 away from the feed pipe 15. The guide seat 12 is semi-circular and tilted towards one side of the crushing assembly 8. By setting the guide seat 12, the space inside the multi-cavity inner ring 2 is compressed, allowing the material to come into more full contact with the crushing assembly 8.

[0040] Please refer to the attached diagram in the instruction manual. Figure 1 and Figure 4 One end of the feed pipe 15 is fixedly connected to the air inlet pipe 3. The top of the feed pipe 15 near the crushing chamber 5 has a receiving port 14. The upper end of the crushing chamber 5 away from the door 13 is fixedly connected to the discharge pipe 4. The door 13 has a feeding port 11 corresponding to the rotation center of the crushing assembly 8, and the feeding port 11 is connected to the feed pipe 15. The top of the crushing chamber 5 is provided with a feeding assembly 1, which includes a support plate 106. The support plate 106 is fixedly connected to the top of the crushing chamber 5 away from the door 13. A conveying cylinder 105 is fixedly installed on the top of the support plate 106 on one side of the gate body 13. A screw conveyor 103 is rotatably connected to the inner wall of the conveying cylinder 105. A drive motor 104 for driving the screw conveyor 103 to rotate is installed on the outer side of the conveying cylinder 105. A guide pipe 102 is fixedly connected to one end of the top of the conveying cylinder 105. A feeding cylinder 101 is fixedly connected to the top of the guide pipe 102. The end of the conveying cylinder 105 matches the receiving port 14 on the feeding pipe 15. The material to be crushed is added into the feeding cylinder 101 and the drive motor 104 is started. The material enters the conveying cylinder 105 through the guide pipe 102. Under the drive of the drive motor 104, the screw conveyor 103 rotates at a uniform speed, thereby realizing that the material is output from the conveying cylinder 105 at a uniform speed and enters the feeding pipe 15 through the receiving port 14.

[0041] Working principle: During use, the material to be crushed is added into the feeding cylinder 101, and the drive motor 104 is started. The material falls into the conveying cylinder 105 through the guide pipe 102. When the drive motor 104 is working, it drives the screw conveyor 103 to rotate and convey the material, so that the material can enter the feeding pipe 15 at a constant speed through the receiving port 14, and then enter the crushing chamber 5 through the feeding port 11. At the same time, the stepper motor 702 is started. When the stepper motor 702 is working, it drives the second gear 704 to rotate through the rotating shaft 703. The rotation of the second gear 704 drives the first gear 701 to rotate. The rotation of the first gear 701 drives the rotating cylinder. Rotating drum 6 drives rotating disc 801, which in turn drives rotating large blade 802 and small blade 803. The material is first subjected to collision, shearing, and pounding under the combined action of the high-speed rotating large blade 802 and the multi-cavity inner ring 2. After collision, shearing, and pounding, the material becomes finer and finer. At the same time, clean cold air is introduced from the outside through the air inlet pipe 3. The material that has reached a certain fineness moves to the small blade 803 under the action of centrifugal force and wind pressure. It is then subjected to collision, shearing, and pounding again under the combined action of the small blade 803 and the multi-cavity inner ring 2 to complete the second crushing. When the crushed material reaches a certain fineness, it is finally discharged from the crushing chamber 5 through the discharge pipe 4.

[0042] When the large blade 802 and small blade 803 become damaged after prolonged use, the operator opens the door 13 and presses the two sets of levers 1605. The two sets of levers 1605 move the two sets of mounting plates 1604 and compress the spring 1606. At the same time, the two sets of mounting plates 1604 move the two sets of movable stop levers 1603 until the two sets of movable stop levers 1603 retract into the inside of the rotating drum 6, releasing the limiting effect of the two sets of movable stop levers 1603 on the sleeve. At this time, the turntable 801 is pulled, and the turntable 801 drives the sleeve to separate from the stop block 1601 until the turntable 801 is removed from the rotating drum 6 and moved out of the crushing chamber 5. This allows the crushing assembly 8 to be completely disassembled and replaced, improving the practicality of the crusher.

[0043] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. An ultrafine pulverizer, comprising a pulverizing chamber (5), characterized in that: The inner wall of the crushing chamber (5) is fitted with a multi-cavity inner ring (2). A rotating drum (6) is rotatably connected to the middle of the crushing chamber (5). One end of the rotating drum (6) extends out of the crushing chamber (5) and is equipped with a rotating drum drive assembly (7). The other end of the rotating drum (6) is located inside the crushing chamber (5) and is equipped with a crushing assembly (8). A turntable disassembly assembly (16) is provided between the crushing assembly (8) and the rotating drum (6). A door (13) is hinged to the front side of the crushing chamber (5). The outer side of the door (13) A feed pipe (15) is installed, one end of which is connected to an air inlet pipe (3). A receiving port (14) is opened on the top of the feed pipe (15) near the crushing chamber (5). A discharge pipe (4) is connected to the upper end of the crushing chamber (5) away from the door (13). A feed inlet (11) is opened on the door (13) corresponding to the rotation center of the crushing component (8), and the feed inlet (11) is connected to the feed pipe (15). A feeding component (1) is provided on the top of the crushing chamber (5).

2. The ultrafine pulverizer according to claim 1, characterized in that: The bottom of the crushing chamber (5) is equipped with a base plate (10), and the four corners of the top of the base plate (10) are provided with reserved holes (9).

3. The ultrafine pulverizer according to claim 1, characterized in that: The interior of the multi-cavity inner ring (2) has several polygonal holes.

4. The ultrafine pulverizer according to claim 1, characterized in that: A guide seat (12) is installed on the side of the door (13) away from the feed pipe (15). The guide seat (12) is semi-circular and tilted toward the crushing assembly (8).

5. The ultrafine pulverizer according to claim 1, characterized in that: The rotary drum drive assembly (7) includes a stepper motor (702), which is installed on the side of the crushing chamber (5) away from the door (13). A rotating shaft (703) is installed at the power output end of the stepper motor (702). A second gear (704) is installed at the end of the rotating shaft (703) away from the stepper motor (702). A first gear (701) is meshed with the top of the second gear (704), and the first gear (701) is sleeved on the outside of the rotary drum (6).

6. The ultrafine pulverizer according to claim 1, characterized in that: The crushing assembly (8) includes a turntable (801), a sleeve is installed in the middle of the turntable (801), the sleeve is fitted on the outside of the rotating cylinder (6), a number of large blades (802) are connected to the side of the turntable (801) near the door (13), and a number of small blades (803) are connected to the side of the turntable (801) away from the large blades (802).

7. The ultrafine pulverizer according to claim 1, characterized in that: The turntable assembly (16) includes a stop block (1601), which is fixedly sleeved on the outside of the turntable (6). A connecting plate (1602) is installed inside the turntable (6) on the side near the door (13). Mounting plates (1604) are installed on the top and bottom of the connecting plate (1602) on the side near the door (13). Movable stop bars (1603) are connected to the opposite ends of the two sets of mounting plates (1604). The two sets of mounting plates (1604) are connected to each other. A spring (1606) is connected to each of the two sets of mounting plates (1604) and a lever (1605) is connected to the end of each of them away from the connecting plate (1602). The end of the lever (1605) away from the mounting plate (1604) extends out of the rotating cylinder (6). The rotating cylinder (6) is provided with a lever limiting groove (1607) that matches the lever (1605) on the side near the door body (13). A mounting plate sliding assembly (17) is provided between the mounting plate (1604) and the connecting plate (1602).

8. The ultrafine pulverizer according to claim 7, characterized in that: The mounting plate sliding assembly (17) includes two sets of pulleys (1701). The two sets of pulleys (1701) are respectively rotatably mounted on one end of the two sets of mounting plates (1604) away from the actuating rod (1605). The connecting plate (1602) has a groove (1702) on the side near the door body (13) that slides with the pulleys (1701).

9. The ultrafine pulverizer according to claim 1, characterized in that: The feeding assembly (1) includes a support plate (106), which is connected to the top of the crushing chamber (5) on the side away from the door (13). A feeding cylinder (105) is installed on the top of the support plate (106). A screw conveyor rod (103) is rotatably connected to the inner wall of the feeding cylinder (105). A drive motor (104) for driving the screw conveyor rod (103) to rotate is installed on the outer side of the feeding cylinder (105). A guide pipe (102) is connected to one end of the top of the feeding cylinder (105). A feeding cylinder (101) is connected to the top of the guide pipe (102). The end of the feeding cylinder (105) matches the receiving port (14) on the feed pipe (15).

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