Flour mill with grinding roller limiting device

By introducing a limit device into the grinding mill, the problems of grinding roller and grinding ring wear and noise caused by grinding roller deviation are solved, and the stable operation and service life of the equipment are achieved.

CN223439976UActive Publication Date: 2025-10-17GUILIN MINING MACHINERY CO LTD
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Patent Information

Application Number
CN202422401774.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-30
Publication Date
2025-10-17
Estimated Expiration
2034-09-30

AI Technical Summary

Technical Problem

The grinding roller of the existing grinding mill deviates and contacts the grinding ring under the action of centrifugal force, resulting in serious wear of the grinding roller and grinding ring, loud noise, and equipment vibration, which affects production and workers' health.

Method used

A limiting device is introduced into the grinding mill, including a limiting support plate and a horizontal push rod, to limit the position of the grinding roller and the grinding ring to avoid direct contact. The distance between the grinding roller and the grinding ring can be adjusted by adjusting the extended length of the horizontal push rod to meet the requirements of materials with different particle sizes.

Benefits of technology

It effectively reduces the wear and noise of the grinding roller and grinding ring, reduces equipment vibration, extends the service life of the equipment, and simplifies the adjustment process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a flour mill with a grinding roller limiting device. The flour mill comprises a mill body, the center shaft assembly is arranged in the machine body, and a plum blossom frame is arranged on the upper side; the grinding roller assembly is connected with the plum blossom rack through a cross arm shaft rotating shaft; the grinding ring is matched with the grinding roller assembly; the limiting assembly comprises a limiting supporting plate and a horizontal ejector rod, the limiting supporting plate is vertically arranged and connected with the plum blossom frame, the horizontal ejector rod is arranged on the limiting supporting plate, and the top of the horizontal ejector rod abuts against the grinding roller assembly. The utility model has the beneficial effects that the limiting component is arranged to limit the position between the grinding roller assembly and the grinding ring, so that the direct contact between the grinding roller and the grinding ring is avoided, the noise and the equipment swing are effectively reduced, and the service life is prolonged.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a flour mill technical field, specifically relates to a flour mill with mill roll limiting device. BACKGROUND

[0002] The flour mill is widely used in the grinding processing of mineral product materials in metallurgy, building material, chemical industry, mine and other fields, the existing flour mill is generally composed of mill roll and mill ring, the product is ground through the rotating mill roll and mill ring, the mill roll in the prior art generally does not have limiting device, so that the mill roll is offset to the outside and contacts the mill ring under the action of centrifugal force in the process of using the flour mill, when the material shovelled by the shovel knife assembly is less, the mill roll and mill ring are tightly rubbed, lead to the serious wear of mill roll and mill ring, need to be replaced frequently, and because the mill roll and mill ring directly contact, huge noise is emitted, causes equipment vibration, influences production and worker health. SUMMARY

[0003] To solve the above technical problem, the utility model provides a flour mill with limiting device, which avoids direct contact between the mill roll and the mill ring while ensuring the fineness of the ground flour, effectively reduces noise and equipment vibration, and prolongs the service life.

[0004] Specifically, the utility model discloses a flour mill with mill roll limiting device, which comprises:

[0005] A machine body;

[0006] A central shaft assembly is arranged in the machine body and has a plum blossom frame on the upper side;

[0007] A mill roll assembly is connected to the plum blossom frame through a cross arm shaft and a plum blossom frame;

[0008] A mill ring is matched with the mill roll assembly;

[0009] A limiting assembly comprises a limiting support plate and a horizontal jack, the limiting support plate is vertically arranged and connected to the plum blossom frame, and the horizontal jack is arranged on the limiting support plate and abuts against the mill roll assembly at the top.

[0010] The above technical scheme has the beneficial effects that the limiting assembly is arranged to limit the position between the mill roll assembly and the mill ring, avoiding direct contact between the mill roll and the mill ring, effectively reducing noise and equipment vibration, and prolonging the service life.

[0011] Further, one end of the horizontal jack is provided with a top block, the upper surface of the top block is a plane, and the side surface of the top block is provided with a locking block.

[0012] The above technical scheme has the beneficial effects that the top block is arranged to contact the mill roll assembly, the top block has strong bearing capacity, reduces damage, and reduces the maintenance frequency.

[0013] Further, the length of the protruding end of the horizontal ejector rod on the limiting support plate can be changed, and the horizontal ejector rod is provided with a tail mounting block to fix the horizontal ejector rod to the limiting support plate.

[0014] The length of the horizontal ejector rod can be adjusted to change the distance between the grinding roller and the grinding ring, so that different particle sizes of materials can be produced by adjusting the horizontal ejector rod only, and the adjustment is convenient without the need to disassemble other components.

[0015] Further, the limiting support plate is provided with a mounting hole, and the horizontal ejector rod is arranged in the mounting hole, and the mounting hole is arranged along the vertical direction.

[0016] Further, the limiting support plate is provided with a reinforcing plate.

[0017] The reinforcing plate can improve the strength of the limiting support plate, so that the limiting support plate can be kept in a vertical state, and the support plate is more stable.

[0018] Further, the grinding roller assembly is provided with a baffle, and the side surface of the baffle is provided with a stop block, and the stop block is in contact with the top block.

[0019] The stop block is in contact with the top block to limit the position of the grinding roller assembly, so that the grinding roller and the grinding ring are not in direct contact, the wear of the grinding roller and the grinding ring is reduced, and the noise caused by the collision is reduced.

[0020] Further, the lower side of the grinding roller assembly is provided with a spade knife assembly and an air inlet channel.

[0021] The spade knife assembly lifts the material falling on the bottom to the grinding roller and the grinding ring for grinding, and the air blown in the air inlet channel blows out the ground material, so that the grinding of the material is completed. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed in the embodiments or the prior art description will be briefly introduced.

[0023] Fig. 1 is the overall structure diagram of the flour mill with the grinding roller limiting device of the present application

[0024] Fig. 2 is the enlarged view of A of the present application

[0025] Fig. 3 is the deflection structure diagram of the grinding roller assembly of the present application.

[0026] The reference signs involved in the drawings are as follows:

[0027] Body 1; shovel blade assembly 11; air inlet channel 12; feed inlet 13; center shaft assembly 2; plum blossom frame 3; grinding roller assembly 4; cross arm shaft rotating shaft 5; grinding ring 6; limiting support plate 7; reinforcing plate 71; horizontal top rod 8; top block 81; locking block 82; tail mounting block 83; baffle 9; baffle block 91. DETAILED DESCRIPTION

[0028] The utility model will be further explained in detail in connection with the drawings.

[0029] As Figs. 1-3 shown, the utility model discloses a flour mill with grinding roller limiting device, including:

[0030] Body 1;

[0031] Center shaft assembly 2 is arranged inside body 1, and plum blossom frame 3 is arranged on the upper side, and center shaft assembly 2 includes rotating center shaft, and the lower side of center shaft is connected with driving motor to drive center shaft rotation, drives plum blossom frame 3 to rotate, further drives grinding roller to rotate;

[0032] Grinding roller assembly 4 is connected with plum blossom frame 3 through cross arm shaft rotating shaft 5, and grinding roller assembly 4 is provided with grinding roller, and grinding roller swings left and right along cross arm shaft rotating shaft 5;

[0033] Grinding ring 6 is matched with grinding roller assembly 4, and grinding ring 6 is fixedly arranged inside body 1;

[0034] Limiting assembly includes limiting support plate 7 and horizontal top rod 8, limiting support plate 7 is vertically arranged and is connected with plum blossom frame 3, and horizontal top rod 8 is arranged on limiting support plate 7, and the top is abutted with grinding roller assembly 4.

[0035] The beneficial effects of the above technical scheme are that the limiting assembly is arranged to limit the position between grinding roller assembly 4 and grinding ring 6, avoid direct contact between grinding roller and grinding ring 6, effectively reduce noise and equipment swing, and prolong service life.

[0036] In some embodiments, the horizontal ejector rod 8 is provided with a top block 81 at one end, the upper surface of the top block 81 is flat, and the side of the top block 81 is provided with a locking block 82. The outer side of the horizontal ejector rod 8 is provided with external threads, and the inner side of the locking block 82 is provided with internal threads. By thread cooperation, the horizontal ejector rod 8 is fixed, and at the same time, the length of the protruding end of the horizontal ejector rod 8 on the limiting support plate 7 can be changed. The horizontal ejector rod 8 is fixed with the limiting support plate 7 by a tail mounting block 83. The tail mounting block 83 is also provided with internal threads inside. The tail mounting block 83 and the locking block 82 are respectively located on both sides of the limiting support plate 7. Both sides are locked at the same time to ensure that the horizontal ejector rod 8 is fixed, and at the same time, the horizontal ejector rod 8 can move horizontally, so that the ejector block is located at different positions. The top block 81 is in contact with the grinding roller assembly 4. The top block 81 has strong bearing capacity, reduces damage, and reduces the number of maintenance times. The length of the horizontal ejector rod 8 protruding can adjust the distance between the grinding roller and the grinding ring 6. When producing materials of different particle sizes, only the horizontal ejector rod 8 needs to be adjusted to change the distance between the grinding roller and the grinding ring. The adjustment is convenient and does not require disassembly of other components.

[0037] Further, the limiting support plate is provided with a mounting hole, and the horizontal ejector rod is arranged in the mounting hole.

[0038] Further, the limiting support plate 7 is provided with a reinforcing plate 71, which is connected by welding to ensure the connection strength. The lower side of the limiting support plate 7 is provided with a mounting plate, which is tightly attached to the wrench block 3 and is fixed by screws or welding.

[0039] The beneficial effects of the above technical scheme are that the reinforcing plate 71 can improve the strength of the limiting support plate 7, ensure that the limiting support plate 7 remains in a vertical state, and the support plate is more stable.

[0040] In some embodiments, the grinding roller assembly 4 is provided with a baffle 9, the side of the baffle 9 is provided with a stop block 91, the stop block 91 is in contact with the top block 81, the baffle 9 is fixed on the upper side of the grinding roller, each grinding roller is provided with a baffle 9, and the cross section of the baffle 9 can be L-shaped, and the stop block 91 is installed on the side of the L-shaped.

[0041] The beneficial effects of the above technical scheme are that the stop block 91 is in contact with the top block 81, which is used to limit the position of the grinding roller assembly 4, avoid direct contact between the grinding roller and the grinding ring 6, reduce wear of the grinding roller and the grinding ring 6, and reduce noise caused by collision.

[0042] In some embodiments, the lower side of the grinding roller assembly 4 is provided with a shovel knife assembly 11 and an air inlet channel 12. The air inlet channel 12 is connected with a fan. The upper side of the machine body 1 is provided with a classifier. The ground material is collected after being blown and screened by the classifier, ensuring the grinding fineness.

[0043] The beneficial effect of the above technical scheme is that the shovel blade assembly 11 lifts the material falling on the bottom to the grinding roller and the grinding ring 6 for grinding, and the air blown in the air inlet channel 12 blows out the ground material, thus completing the material grinding.

[0044] In the working process, the body 1 is provided with a feeding port on the side, the material is fed through the feeding port 13, then the central shaft assembly 2 rotates, the shovel blade assembly 11 sends the material to the grinding roller and the grinding ring 6 for grinding, if large pieces of material enter between the grinding roller and the grinding ring 6 during the grinding process, the grinding roller can swing towards the central shaft assembly 2 to generate a gap between the grinding roller and the grinding ring 6, at this time, the upper side of the grinding roller is offset to the outside, a gap is generated between the stop block 91 and the top block 81, after a certain grinding time, the large pieces of material are broken into small pieces of material, at this time, the grinding roller is returned under the action of the centrifugal force, at the same time, the top block 81 is tightly attached to the stop block 91, to avoid the further outward offset of the grinding roller, to avoid the wear of the grinding roller and the grinding ring 6, to effectively reduce the noise and the equipment swing, and to prolong the service life.

[0045] For those skilled in the art, without departing from the creative concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application.

Claims

1. A grinding mill with a grinding roller limiting device, characterized in that: include: Body (1); A central shaft assembly (2) is arranged inside the machine body (1), and a plum blossom frame (3) is provided on the upper side; The grinding roller assembly (4) is connected to the plum blossom frame (3) via the cross arm shaft (5); A grinding ring (6) cooperates with the grinding roller assembly (4); The limiting assembly comprises: a limiting support plate (7) and a horizontal push rod (8); the limiting support plate (7) is vertically arranged and connected to the plum blossom frame (3); the horizontal push rod (8) is arranged on the limiting support plate (7), and the top thereof abuts against the grinding roller assembly (4).

2. The grinding mill with a grinding roller limiting device according to claim 1, characterized in that: A top block (81) is provided at one end of the horizontal top rod (8), the upper surface of the top block (81) is a plane, and a locking block (82) is provided on the side of the top block (81).

3. The grinding mill with a grinding roller limiting device according to claim 1, characterized in that: The length of the protruding end of the horizontal push rod (8) on the position-limiting support plate (7) can be changed, and the horizontal push rod (8) is provided with a tail mounting block (83) for fixing the horizontal push rod (8) to the position-limiting support plate (7).

4. The grinding mill with a grinding roller limiting device according to claim 1, characterized in that: The position-limiting support plate (7) is provided with a mounting hole, the horizontal push rod (8) is arranged in the mounting hole, and the mounting hole is arranged along the vertical direction.

5. The grinding mill with a grinding roller limiting device according to claim 1, characterized in that: The position-limiting support plate (7) is provided with a reinforcing plate (71).

6. The grinding mill with a grinding roller limiting device according to claim 2, characterized in that: The grinding roller assembly (4) is provided with a baffle (9), and a stopper (91) is provided on the side of the baffle (9), and the stopper (91) is in contact with the top block (81).

7. The grinding mill with a grinding roller limiting device according to claim 1, characterized in that: A scraper assembly (11) and an air inlet channel (12) are provided on the lower side of the grinding roller assembly (4).