Novel tooth roller protection device

By installing a toothed roller protection device in the double-roller shredder, and using torsion plates and protective sleeves to protect the blades, the problem of blade damage caused by metallic debris is solved, thus achieving safe operation of the equipment and cost reduction.

CN223761149UActive Publication Date: 2026-01-06SHANDONG GUANGDA SAILU NEW MATERIALS TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202423070429.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-12
Publication Date
2026-01-06
Estimated Expiration
2034-12-12

AI Technical Summary

Technical Problem

Metallic impurities mixed in with the material in a double-roll shredder can damage the blades, affecting production progress and increasing maintenance costs.

Method used

A novel toothed roller protection device is designed and installed between the drive shaft and the main shaft of the double roller shredder. It includes a left base and a right base, with a connecting sleeve and a protective sleeve on the outer side and a rubber layer on the inner wall. The torsion plate breaks when it encounters excessive torque to protect the blade.

Benefits of technology

It effectively protects the toothed roller cutter block from damage, reduces maintenance and production costs, and ensures safe operation of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of tooth roller protection equipment, in particular to a novel tooth roller protection device which comprises a left base and a right base which are the same in structure and arranged oppositely, connecting sleeves are arranged on the outer side of the left base and the outer side of the right base respectively, the two connecting sleeves are used for being connected with a driving shaft and a main shaft of a double-roller powder tearing machine respectively, and the left base and the right base are arranged oppositely. A plurality of evenly-distributed containing grooves are formed in the outer wall of the left base and the outer wall of the right base in the circumferential direction, torsion pieces are arranged in the containing grooves, two V-shaped grooves are oppositely formed in the center of each torsion piece in the longitudinal direction, and protective sleeves are further fixedly arranged on the outer sides of the left base and the right base. When metal substances suddenly enter the double-roller powder tearing machine or the tooth roller cutter block is blocked by foreign matters during operation, the torsion sheet is broken, and the powder tearing machine loses power and does not continue to work, so that the tooth roller cutter block can be protected from being damaged, the internal cutter block is prevented from being broken, the tooth roller assembly is protected to be safe and free of damage, and the maintenance and production cost is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of toothed roller protection equipment, specifically a novel toothed roller protection device. Background Technology

[0002] The working principle of high-torque rotary pulverizing equipment such as double-roll shredders is to physically pulverize different materials through methods such as extrusion, shearing, and hammer impact. The materials being pulverized are generally non-metallic, so they do not cause much damage to the blades. However, there are many unexpected situations where metallic impurities are mixed into the material, which can damage the rotating blades. Replacing the blades will affect the production schedule, increase the workload of maintenance personnel, and increase production costs. Therefore, it is necessary to design a protective device to address the situation where the blades are damaged. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides a novel toothed roller protection device, which solves the problem of the cutter block being easily damaged by metal debris during operation.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a novel toothed roller protection device, which is set between the drive shaft and the main shaft of the double roller shredder, including a left base and a right base with the same structure and arranged opposite to each other. The outer sides of the left base and the right base are provided with connecting sleeves. The two connecting sleeves are respectively used to connect with the drive shaft and the main shaft of the double roller shredder. A number of evenly distributed placement grooves are provided along the circumference of the outer wall of the left base and the right base. Torsion plates are provided in the placement grooves. The center of the torsion plates is provided with two V-shaped grooves opposite to each other. Protective sleeves are also fixedly provided on the outer sides of the left base and the right base.

[0005] As an optimization, the protective sleeve includes a left protective sleeve disposed on the outside of the left base and a right protective sleeve disposed on the outside of the right base.

[0006] As an optimization, the inner walls of both the left and right protective sleeves are provided with a rubber layer.

[0007] As an optimization, fixing bolts are provided between the left and right protective sleeves and the left and right bases.

[0008] As an optimization, the lengths of the left and right protective sleeves are both greater than the lengths of the left and right bases, respectively.

[0009] As an optimization, the distance between the inner walls of the left and right protective sleeves and the outer walls of the left and right bases is between 2mm and 4mm.

[0010] As an optimization, the number of placement slots is 8.

[0011] As an optimization, the distance between the left base and the right base is between 3mm and 5mm.

[0012] The beneficial effects of this utility model are as follows: This utility model provides a novel toothed roller protection device, which is installed between the power source of the equipment and the main shaft of the shredder. When a metal substance suddenly enters the double roller shredder during operation or a foreign object gets stuck in the toothed roller blade, the torsion plate breaks, the shredder loses power and stops working. This protects the toothed roller blade from damage, prevents the internal blade from breaking, protects the toothed roller assembly from damage, and reduces maintenance and production costs. Attached Figure Description

[0013] Appendix Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Appendix Figure 2 This is a schematic diagram of the structure of this utility model without a protective cover;

[0015] Appendix Figure 3 This is a schematic diagram of the structure of the torsion plate of this utility model.

[0016] The components are: 1. left base, 2. right base, 3. placement groove, 4. torsion plate, 5. V-groove, 6. left protective sleeve, 7. right protective sleeve, 8. fixing bolt, and 9. connecting sleeve. Detailed Implementation

[0017] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0018] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0019] This utility model discloses a novel toothed roller protection device, disposed between the drive shaft and the main shaft of a double-roller shredder. It includes a left base and a right base with identical structures arranged opposite each other, with a distance of 3mm-5mm between them. Connecting sleeves are provided on the outer sides of both the left and right bases, respectively used to connect to the drive shaft and the main shaft of the double-roller shredder. A plurality of evenly distributed placement grooves are provided along the circumferential direction of the outer walls of the left and right bases, with a total of eight grooves. Each groove contains a torsion plate, and the center of each torsion plate has two V-shaped grooves facing each other longitudinally. When the applied torque exceeds the torque of the combined torsion plates, the plate can break cleanly and instantly. The manufacturing strength of the torsion plates is calculated based on the maximum torsion resistance of the toothed roller blade at breakage. The torque is set to 80% of the torque value when the blade breaks, and then averaged across each torque plate. Protective sleeves are also fixed to the outer sides of the left and right bases. These protective sleeves include a left protective sleeve on the outside of the left base and a right protective sleeve on the outside of the right base. The inner walls of both the left and right protective sleeves are lined with a rubber layer. The lengths of the left and right protective sleeves are greater than the lengths of the left and right bases, respectively. The protective sleeves are made of metal. The distance between the inner walls of the left and right protective sleeves and the outer walls of the left and right bases is between 2mm and 4mm, ensuring that the torque plates have a slight vertical range of motion during normal operation to adjust the dynamic balance between the left and right bases. Fixing bolts are provided between the left and right protective sleeves and the left and right bases to secure the protective sleeves.

[0020] This device is suitable for protecting the internal components of various high-torque rotating equipment. Its size is custom-made to fit the actual equipment dimensions, making installation convenient. The number of torque plates can also be increased or decreased according to the specific needs of the equipment on site. It can effectively and quickly disconnect the power to the equipment, protecting internal components from damage.

[0021] The above-described specific embodiments are merely specific examples of this utility model. The patent protection scope of this utility model includes, but is not limited to, the product form and style of the above-described specific embodiments. Any appropriate changes or modifications made by a person skilled in the art that conform to the claims of this utility model should fall within the patent protection scope of this utility model.

Claims

1. A new toothed roll protection device, characterized by, The utility model discloses a be arranged between the drive shaft and the main shaft of double roll tear powder machine, including the left base and right base of same structure and opposite arrangement, the outer side of left base and right base is equipped with the connecting sleeve, two connecting sleeves are used for with drive shaft and double roll tear powder machine's main shaft connection respectively, and the outer wall of left base and right base is equipped with a plurality of evenly distributed placement slot, and a plurality of placement slot all are equipped with torsion piece, and the center longitudinal opposite of torsion piece is equipped with two V type recess, and the outer side of left base and right base still is equipped with the protection sleeve fixedly.

2. The novel tooth roll protection device according to claim 1, characterized in that, The protection sleeve includes a left protection sleeve arranged on the outer side of the left base and a right protection sleeve arranged on the outer side of the right base.

3. The novel tooth roll protection device according to claim 2, characterized in that, The inner walls of the left protection sleeve and the right protection sleeve are both provided with a rubber layer.

4. The novel tooth roll protection device according to claim 3, characterized in that, The left protection sleeve and the right protection sleeve are both provided with a fixing bolt between the left base and the right base.

5. The novel tooth roll protection device according to claim 4, wherein The lengths of the left protection sleeve and the right protection sleeve are both greater than the lengths of the left base and the right base respectively.

6. The novel tooth roll protection device according to claim 5, wherein The distance between the inner walls of the left protection sleeve and the right protection sleeve and the outer walls of the left base and the right base is between 2mm and 4mm.

7. The novel tooth roll protection device according to claim 1, wherein The number of the placement slots is 8.

8. The novel tooth roll protection device according to claim 7, characterized in that The distance between the left base and the right base is between 3mm and 5mm.