A double-unit stone mill

By designing a double-unit stone mill, the grinding disc is rotated by a feeding assembly and a torque motor, combined with the rapid conveying of a negative pressure fan, thus solving the problem of low grinding efficiency and achieving rapid grinding and discharge.

CN224423069UActive Publication Date: 2026-06-30LELING RUITENG MASCH EQUIP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LELING RUITENG MASCH EQUIP CO LTD
Filing Date
2025-06-12
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing grinding mills have poor grinding efficiency in actual use, resulting in slow output speed.

Method used

A double-unit stone mill was designed, comprising a fixed frame, a fast grinding component, a feeding component, a torque motor, and a negative pressure fan. The feeding component delivers materials to the upper and lower grinding discs, the torque motor drives the lower grinding disc to rotate for grinding, and the negative pressure fan enables rapid material conveying and secondary grinding.

Benefits of technology

It enables rapid grinding and discharge of materials, improves work efficiency, and enhances the stability and grinding effect of the equipment.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224423069U_ABST
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Abstract

This utility model provides a double-unit stone mill, belonging to the field of grinding technology. It includes a fixed frame and a rapid grinding assembly. Two support seats are provided on one side of the fixed frame, and each support seat has a base on its top. The rapid grinding assembly includes two connecting frames on the top of the base. Through the provided upper grinding disc, material is conveniently fed through one of the feeders to two discharge pipes during use. The two discharge pipes respectively feed material into two feeding hoppers. The feeding hoppers transport the material to multiple conveying hoppers via bidirectional sliding blocks, entering the upper and lower grinding discs. At this time, the user activates the torque motor via a controller, causing the torque motor to drive the lower grinding disc to rotate and grind the material. Both upper and lower grinding discs grind simultaneously. The ground powder is discharged through a receiving disc into the discharge head and falls into a recycling hopper for collection. Through the two sets of upper and lower grinding discs, rapid grinding is achieved, improving work efficiency.
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Description

Technical Field

[0001] This utility model belongs to the field of grinding technology, specifically relating to a double-group stone mill. Background Technology

[0002] Grinding refers to the process of crushing materials into fine powder by overcoming the cohesive forces of their internal particles with external force. A search revealed that application number "CN202111399131.8" discloses "a grinding mill," which describes that "when the grinding mill is in operation, the air-sealing structure can blow pressurized gas circumferentially towards the drive shaft, thereby forming an air-sealing film on the circumference of the high-speed rotating drive shaft, thus sealing the main chamber and preventing material in the main chamber from entering the transmission box." While it is true that the air-sealing structure can blow pressurized gas circumferentially towards the drive shaft when the grinding mill is in operation, effectively forming an air-sealing film on the circumference of the high-speed rotating drive shaft, thus sealing the main chamber and preventing material in the main chamber from entering the transmission box, the above-mentioned document still has the following problems in actual use:

[0003] In actual use, the grinding efficiency is poor, resulting in a slow output speed.

[0004] Therefore, providing a grinding mill that can achieve rapid grinding is both practical and high-speed. Utility Model Content

[0005] The purpose of this utility model is to provide a double-unit stone mill to solve the above-mentioned technical problems.

[0006] This utility model provides a dual-group stone mill, including a fixed frame and a rapid abrasive assembly.

[0007] The fixing frame has two support seats on one side, and each of the two support seats has a base on top.

[0008] The rapid abrasive assembly includes two connecting frames mounted on the top of the base. A receiving tray is located in the middle of the two connecting frames, and an upper grinding disc is located at the bottom of the ends of the two connecting frames. The top of the upper grinding disc is sealed and connected to two conveying hoppers, and the top of the two conveying hoppers is sealed and connected to a feeding hopper. A bidirectional slide is located in the middle of the feeding hopper. A reinforcing frame is located on one side of the fixed frame. A feeder is located on the top of both the fixed frame and the reinforcing frame. Both ends of one of the feeders are sealed and connected to a discharge pipe, and the ends of both discharge pipes pass through the reinforcing frame and correspond to the bidirectional slide.

[0009] In one embodiment of this utility model, the feeding assembly includes a feeding cylinder that is sealed and connected to the top of two feeders. The top of one feeding cylinder is sealed and connected to a drive pipe, and the end of the drive pipe is sealed and connected to a negative pressure fan. The bottom of the negative pressure fan is fixedly connected to a fixed frame. The top of the other feeding cylinder is sealed and connected to a conveying pipe, and the end of the conveying pipe is sealed and connected to the drive pipe. One side of the other feeding cylinder is sealed and connected to a feeding pipe, and the end of the feeding pipe is sealed and connected to a storage hopper. One end of one feeding cylinder is sealed and connected to a connecting pipe, and the end of the connecting pipe is sealed and connected to a recovery hopper. The top of the recovery hopper is provided with two discharge heads, and one side of each of the two discharge heads is sealed and connected to a receiving tray.

[0010] In one embodiment of this utility model, a torque motor is provided at the bottom of the inner wall of both bases, and a lower grinding disc is provided at the end of the output shaft of each of the two torque motors through the base.

[0011] In one embodiment of this utility model, the driving assembly includes support frames that are both mounted on the top of two bases, a drive motor is mounted between the two support frames, an auxiliary rod is mounted on one side of the inner wall of each of the two feeders, the outer walls of the two auxiliary rods are rotatably connected to the feeders, a fixed rod is mounted between the two auxiliary rods, pulleys are mounted on the outer walls of the drive motor output shaft and the fixed rod, belts are driven to the outer walls of the two pulleys, and a feeding plate is mounted on the outer walls of the two auxiliary rods.

[0012] In one embodiment of this utility model, reinforcing frames are provided on both sides of the two conveying buckets, and the bottom of the two reinforcing frames is fixedly connected to the upper grinding disc.

[0013] In one embodiment of this utility model, a secondary grinding mill is provided on one side of the fixed frame, and a feeding hopper is sealed and connected to the bottom of another feeder. The end of the feeding hopper is sealed and connected to the secondary grinding mill, and the end of the secondary grinding mill is sealed and connected to a discharge pipe. The output shaft end of the drive motor is driven and connected to the secondary grinding mill, and a discharge pipe is sealed and connected to one side of the secondary grinding mill.

[0014] In one embodiment of this utility model, a control box is provided in the middle of the fixing frame, and a controller is provided at one corner of the control box.

[0015] In one embodiment of this utility model, the negative pressure fan, torque motor, and drive motor are all electrically connected to the controller, and the controller is electrically connected to an external power supply.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] The upper grinding disc allows for easy feeding of material through one feeder to two discharge pipes. These discharge pipes then feed the material into two hoppers, which in turn convey the material to multiple conveying hoppers via bidirectional sliding blocks. The material then enters the upper and lower grinding discs. The operator activates the torque motor via a controller, causing the lower grinding disc to rotate and grind the material. Both upper and lower grinding discs grind simultaneously, and the ground powder is discharged through a receiving disc into the discharge head and falls into a recycling hopper for collection. This system of upper and lower grinding discs achieves rapid grinding, improving work efficiency. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of one side of the structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the top structure of this utility model;

[0022] Figure 4 This is a partial perspective structural diagram of the present invention.

[0023] In the diagram: 100, fixed frame; 110, support base; 120, base; 200, rapid abrasive assembly; 210, connecting frame; 220, receiving tray; 230, upper grinding disc; 240, conveyor hopper; 250, feeding hopper; 260, bidirectional slide; 270, reinforcing frame; 280, feeder; 290, discharge pipe; 300, feeding assembly; 310, discharge cylinder; 320, drive pipe; 330, negative pressure fan; 340, conveyor. Pipe; 350, Feeding pipe; 360, Storage hopper; 370, Connecting pipe; 380, Recycling hopper; 390, Discharge head; 400, Torque motor; 500, Lower grinding disc; 600, Drive assembly; 610, Support frame; 620, Drive motor; 630, Fixing rod; 640, Pulley; 650, Belt; 660, Feeding plate; 700, Reinforcing frame; 800, Secondary grinder; 900, Discharge pipe; 1000, Control box. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] Example

[0026] Please see Figure 1-4 A stone mill dual-unit grinding mill includes a fixed frame 100 and a rapid grinding assembly 200.

[0027] Please refer to the details. Figure 1 Two support seats 110 are provided on one side of the fixed frame 100, and a base 120 is provided on the top of each of the two support seats 110.

[0028] Please see Figure 2 The rapid abrasive assembly 200 includes two connecting frames 210 disposed on the top of the base 120. A receiving tray 220 is disposed in the middle of the two connecting frames 210. An upper grinding disc 230 is disposed at the bottom of the ends of the two connecting frames 210. The top of the upper grinding disc 230 is sealed and connected to two conveying hoppers 240. The top of the two conveying hoppers 240 is sealed and connected to a feeding hopper 250. A bidirectional slide 260 is disposed in the middle of the feeding hopper 250. A reinforcing frame 270 is disposed on one side of the fixed frame 100. A feeder 280 is disposed on the top of both the fixed frame 100 and the reinforcing frame 270. Both ends of one of the feeders 280 are sealed and connected to a discharge pipe 290. The ends of both discharge pipes 290 pass through the reinforcing frame 270 and correspond to the bidirectional slide 260.

[0029] In one specific embodiment, the upper grinding disc 230 facilitates material feeding via the feeding assembly 300 through one of the feeders 280 to two discharge pipes 290. The two discharge pipes 290 respectively feed the material into two feeding hoppers 250. The feeding hoppers 250 then convey the material through a bidirectional slide block 260 to multiple conveying hoppers 240, which then enter the upper grinding disc 230 and the lower grinding disc 500. At this time, the user turns on the torque motor 400 through the controller, causing the torque motor 400 to drive the lower grinding disc 500 to rotate and grind the material. The two sets of upper grinding discs 230 and lower grinding discs 500 grind the material simultaneously. The ground powder is discharged through the receiving disc 220 to the discharge head 390 and falls into the recycling hopper 380 for recycling. By using the two sets of upper grinding discs 230 and lower grinding discs 500, the purpose of rapid grinding is achieved, improving work efficiency.

[0030] Please see Figure 1-3The feeding assembly 300 includes a feeding cylinder 310 that is sealed and connected to the top of two feeders 280. The top of one feeding cylinder 310 is sealed and connected to a drive pipe 320, and the end of the drive pipe 320 is sealed and connected to a negative pressure fan 330. The bottom of the negative pressure fan 330 is fixedly connected to a fixed frame 100. The top of the other feeding cylinder 310 is sealed and connected to a conveying pipe 340, and the end of the conveying pipe 340 is sealed and connected to the drive pipe 320. One side of the other feeding cylinder 310 is sealed and connected to a feeding pipe 350, and the end of the feeding pipe 350 is sealed and connected to a storage hopper 360. One end of one feeding cylinder 310 is sealed and connected to a connecting pipe 370, and the end of the connecting pipe 370 is sealed and connected to a recovery hopper 380. The top of the recovery hopper 380 is provided with two discharge heads 390, and one side of each discharge head 390 is sealed and connected to a receiving tray 220.

[0031] In one specific embodiment, a negative pressure fan 330 is provided, which can be easily turned on by the user via a controller to generate negative pressure. This negative pressure is then transmitted to the feeding pipe 350, which draws the material from the storage hopper 360 into another discharge cylinder 310. The material is then fed into one of the feeders 280 and into the discharge pipe 290 for processing. When the processed powdered material enters the recovery hopper 380, it will be drawn into one of the discharge cylinders 310 by the connecting pipe 370 according to the negative pressure. It will then be fed into the feeding bin by another feeder 280 and enter the secondary grinder 800 for secondary grinding before being discharged through the discharge pipe 900, thus achieving the purpose of feeding.

[0032] Please see Figure 4 Both bases 120 have a torque motor 400 installed at the bottom of their inner walls, and the output shaft ends of both torque motors 400 are connected to a lower grinding disc 500 through the base 120.

[0033] In one specific embodiment, the base 120 is provided to protect the internal torque motor 400, preventing it from shaking during use, improving stability, and preventing damage caused by bumps during use.

[0034] Please see Figure 4 The drive assembly 600 includes a support frame 610 that is mounted on the top of two bases 120. A drive motor 620 is mounted between the two support frames 610. An auxiliary rod is mounted on one side of the inner wall of each of the two feeders 280. The outer walls of the two auxiliary rods are rotatably connected to the feeders 280. A fixed rod 630 is mounted between the two auxiliary rods. A pulley 640 is mounted on the output shaft of the drive motor 620 and the outer wall of the fixed rod 630. A belt 650 is driven to the outer walls of the two pulleys 640. A feeding plate 660 is mounted on the outer walls of the two auxiliary rods.

[0035] In one specific embodiment, the provided drive motor 620 allows the controller to turn on the drive motor 620 during use, causing one pulley 640 to rotate via the belt 650, which in turn causes the other pulley 640 to rotate, thereby rotating the fixed rod 630, which in turn drives the auxiliary rod, causing the auxiliary rod to drive the feeding plate 660 to rotate continuously for feeding, thus achieving the purpose of driving feeding.

[0036] Please see Figure 3 Both sides of the two conveying buckets 240 are equipped with reinforcing frames 700, and the bottom of the two reinforcing frames 700 is fixedly connected to the upper grinding disc 230.

[0037] In one specific embodiment, the reinforcing frame 700 facilitates the support and fixation of the conveying bucket 240, making the conveying bucket 240 more stable during use, avoiding shaking during use, and improving stability.

[0038] Please see Figure 1 A secondary grinding mill 800 is installed on one side of the fixed frame 100. The bottom of another feeder 280 is sealed and connected to a feeding hopper. The end of the feeding hopper is sealed and connected to the secondary grinding mill 800. The end of the secondary grinding mill 800 is sealed and connected to a discharge pipe 900. The output shaft end of the drive motor 620 is driven and connected to the secondary grinding mill 800. The side of the secondary grinding mill 800 is sealed and connected to a discharge pipe.

[0039] In one specific embodiment, the provided feeding hopper facilitates the rapid delivery of materials to the secondary grinder 800 for secondary grinding during use, thereby further improving their fineness.

[0040] Please see Figure 1 A control box 1000 is installed in the middle of the fixed frame 100, and a controller is installed at one corner of the control box 1000.

[0041] In one specific embodiment, the fixed bracket 100 facilitates the support and fixation of the control box 1000, making the control box 1000 more stable during use, avoiding shaking during use, and improving stability.

[0042] Please see Figure 1-4 The negative pressure fan 330, torque motor 400 and drive motor 620 are all electrically connected to the controller, and the controller is electrically connected to an external power supply.

[0043] In one specific embodiment, a controller is provided to facilitate power supply control of electrical equipment, enabling the equipment to be powered on when needed, thus avoiding situations where power cannot be supplied when power is required.

[0044] In operation, the negative pressure fan 330 is first activated by the user via a controller, generating negative pressure that is then transmitted to the feeding pipe 350. This feed pipe 350 draws material from the storage hopper 360 into another discharge cylinder 310, which then feeds it into one of the feeders 280. The material then enters the discharge pipe 290 for processing. Next, the upper grinding disc 230 allows the feeding assembly 300 to deliver the material through one of the feeders 280 to two discharge pipes 290. The two discharge pipes 290 then deliver the material to two feeding hoppers 250, which, via a bidirectional slide 260, transport the material to multiple conveyors. Inside the hopper 240, the material enters the upper grinding disc 230 and the lower grinding disc 500. At this time, the operator turns on the torque motor 400 through the controller, causing the torque motor 400 to drive the lower grinding disc 500 to rotate and grind the material. The two sets of upper grinding discs 230 and lower grinding discs 500 grind the material simultaneously. The ground powder is discharged through the receiving disc 220 to the discharge head 390 and falls into the recycling hopper 380 to wait for recycling. Through the two sets of upper grinding discs 230 and lower grinding discs 500, the purpose of rapid grinding is achieved, which improves the working efficiency. Finally, according to the negative pressure, the material will be sucked into one of the discharge cylinders 310 by the connecting pipe 370 and sent to the feeding hopper through another feeder 280. It then enters the secondary grinder 800 for secondary grinding and is discharged through the discharge pipe 900, thus achieving the purpose of feeding.

[0045] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A double-unit stone mill grinding mill, characterized in that, include: A fixing frame (100) is provided with two support seats (110) on one side, and a base (120) is provided on the top of each of the two support seats (110). A rapid abrasive assembly (200) includes two connecting frames (210) disposed on the top of a base (120). A receiving tray (220) is disposed in the middle of the two connecting frames (210). An upper grinding disc (230) is disposed at the bottom of the ends of the two connecting frames (210). The top of the upper grinding disc (230) is sealed and connected to two conveying hoppers (240). The top of the two conveying hoppers (240) is sealed and connected to a feeding hopper. 250), a bidirectional slide (260) is provided in the middle of the feeding hopper (250), a reinforcing frame (270) is provided on one side of the fixed frame (100), and a feeder (280) is provided on the top of both the fixed frame (100) and the reinforcing frame (270). Both ends of one of the feeders (280) are sealed and connected to a discharge pipe (290), and the ends of both discharge pipes (290) pass through the reinforcing frame (270) and correspond to the bidirectional slide (260).

2. The stone mill double-unit grinding mill according to claim 1, characterized in that: A feeding assembly (300) includes a feeding cylinder (310) that is sealed and connected to the top of two feeders (280). The top of one feeding cylinder (310) is sealed and connected to a drive pipe (320), and the end of the drive pipe (320) is sealed and connected to a negative pressure fan (330). The bottom of the negative pressure fan (330) is fixedly connected to a mounting frame (100). The top of the other feeding cylinder (310) is sealed and connected to a conveying pipe (340), and the end of the conveying pipe (340) is connected to the drive pipe. The moving pipe (320) is sealed and connected, and the other feeding cylinder (310) is sealed and connected to a feeding pipe (350) on one side. The end of the feeding pipe (350) is sealed and connected to a storage hopper (360). One end of one of the feeding cylinders (310) is sealed and connected to a connecting pipe (370). The end of the connecting pipe (370) is sealed and connected to a recovery hopper (380). The top of the recovery hopper (380) is provided with two discharge heads (390). One side of each of the two discharge heads (390) is sealed and connected to a receiving tray (220).

3. A double-unit stone mill according to claim 2, characterized in that: A torque motor (400) is provided at the bottom of the inner wall of each of the two bases (120), and a lower grinding disc (500) is provided at the end of the output shaft of each of the two torque motors (400) through the base (120).

4. A double-unit stone mill according to claim 3, characterized in that: The drive assembly (600) includes a support frame (610) that is disposed on the top of two bases (120). A drive motor (620) is disposed between the two support frames (610). An auxiliary rod is disposed on one side of the inner wall of each of the two feeders (280). The outer wall of each of the two auxiliary rods is rotatably connected to the feeder (280). A fixed rod (630) is disposed between the two auxiliary rods. A pulley (640) is disposed on the output shaft of the drive motor (620) and the outer wall of the fixed rod (630). A belt (650) is connected to the outer wall of each of the two pulleys (640). A feeding plate (660) is disposed on the outer wall of each of the two auxiliary rods.

5. A double-unit stone mill according to claim 1, characterized in that: Both sides of the two conveying buckets (240) are provided with reinforcing frames (700), and the bottom of the two reinforcing frames (700) are fixedly connected to the upper grinding disc (230).

6. A double-unit stone mill according to claim 4, characterized in that: A secondary grinding mill (800) is provided on one side of the fixed frame (100), and a feeding bin is sealed and connected to the bottom of another feeder (280). The end of the feeding bin is sealed and connected to the secondary grinding mill (800). The end of the secondary grinding mill (800) is sealed and connected to the discharge pipe (900). The output shaft end of the drive motor (620) is driven and connected to the secondary grinding mill (800). A discharge pipe is sealed and connected to one side of the secondary grinding mill (800).

7. A double-unit stone mill according to claim 6, characterized in that: A control box (1000) is provided in the middle of the fixed frame (100), and a controller is provided at one corner of the control box (1000).

8. A double-unit stone mill according to claim 7, characterized in that: The negative pressure fan (330), torque motor (400) and drive motor (620) are all electrically connected to the controller, which is electrically connected to an external power supply.