Wear-resistant steel ball with helical groove

Abstract

The utility model relates to wear -resistant steel ball technical field, concretely is a kind of wear -resistant steel ball with spiral groove, including ball member, the outer wall of ball member is equipped with thread groove, the inner wall of ball member is provided with inner ball piece, the inner ball piece includes: return spring, one end of return spring is fixedly connected on the inner wall of ball member, the other end of return spring is fixedly connected with homogeneous ball body, return spring extends from the inner wall of ball member to the outer wall of homogeneous ball body along multiple directions.The utility model is provided with inner ball piece, when ball member is impacted, the relative movement of homogeneous ball body is used to make return spring store energy, then partial concentrated impact is formed to inner wall by cylinder driving boss body, the residual material in thread groove can be shaken and shaken off by the high-frequency vibration, avoid the decrease of grinding efficiency or the aggravation of local wear caused by blockage, realize the circulation mechanism of "grinding-impact-discharge".

Description

Technical Field

[0001] This utility model relates to the field of wear-resistant steel ball technology, specifically a wear-resistant steel ball with spiral grooves. Background Technology

[0002] Wear-resistant steel balls, as the grinding media in ball mills, mainly achieve the grinding effect through collision and friction with materials, and are widely used in mining, cement, power plant and other fields.

[0003] In ball milling operations, traditional wear-resistant steel balls are prone to clogging due to the accumulation of residual material on their outer walls caused by the grinding requirements of materials with high viscosity or high impurity content. Lacking an effective self-cleaning mechanism, this clogging not only reduces the contact area between the steel balls and the material, significantly decreasing grinding efficiency, but also leads to uneven wear on the outer wall of the steel balls due to localized material retention, exacerbating component wear and shortening service life.

[0004] In view of this, we propose a wear-resistant steel ball with spiral grooves. Utility Model Content

[0005] The purpose of this utility model is to provide a wear-resistant steel ball with spiral grooves. This wear-resistant steel ball with spiral grooves solves the problem that traditional wear-resistant steel balls are prone to outer wall groove blockage when grinding high viscosity or high impurity materials due to the lack of a self-cleaning mechanism, which leads to reduced grinding efficiency, increased wear and shortened life.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A wear-resistant steel ball with spiral grooves includes a spherical component with a threaded groove on its outer wall and an inner spherical component on its inner wall. The inner spherical component includes a return spring, one end of which is fixedly connected to the inner wall of the spherical component, and the other end of which is fixedly connected to a homogeneous sphere. The return spring extends from the inner wall of the spherical component to the outer wall of the homogeneous sphere in multiple directions. The outer wall of the homogeneous sphere is arranged with an array of cylinders, each cylinder having a boss. The inner wall of the homogeneous sphere has a spiral groove mechanism for randomly changing the center of gravity of the device.

[0008] Preferably, the spiral groove mechanism includes an inner spherical groove, which is formed on the inner wall of a homogeneous sphere. A spiral blade baffle is fixedly connected to the inner wall of the inner spherical groove, and a plurality of solid small balls are placed on the inner wall of the inner spherical groove.

[0009] Preferably, the threaded grooves are spirally distributed on the outer surface of the spherical part, and the cross-section of the threaded grooves is a U-shaped groove structure.

[0010] Preferably, multiple return springs are evenly distributed between the inner wall of the spherical component and the homogeneous sphere, and the return springs are arranged radially.

[0011] Preferably, the cylinders are arranged in an array along the outer wall of the homogeneous sphere, and the cylinders are fixedly mounted on the outer wall of the homogeneous sphere.

[0012] Preferably, the boss body is coaxially arranged with the cylinder, and the spiral blade baffle extends spirally along the inner wall of the inner spherical groove.

[0013] Preferably, the solid spheres have different mass distributions, and the homogeneous spheres have a non-centrally biased structure to enhance the impact offset.

[0014] By employing the above technical solution, this utility model provides a wear-resistant steel ball with spiral grooves. It possesses at least the following beneficial effects:

[0015] 1. This utility model incorporates an inner ball component. When the ball component is impacted, the relative movement of the homogeneous ball causes the return spring to store force. Then, the cylinder drives the boss to form a localized concentrated impact on the inner wall. The resulting high-frequency vibration can shake off the residual material in the thread groove, avoiding the decrease in grinding efficiency or the aggravation of local wear caused by blockage, and realizing a "grinding-impact-slag removal" cycle mechanism.

[0016] 2. This utility model transforms the traditional point contact of a sphere into micro-surface contact and line contact by setting a threaded groove, increasing the impact surface to increase the force-bearing surface of the material, and at the same time, it can embed larger materials to achieve "material grinding material", reducing the direct collision loss of the sphere, improving grinding efficiency and reducing friction loss.

[0017] 3. This utility model incorporates a spiral groove mechanism, which utilizes the random sliding of solid balls along a spiral trajectory under the influence of gravity, inertia, and centrifugal force to alter the internal mass distribution. This dynamically adjusts the overall center of gravity, changes the dispersion of the falling paths of multiple ball parts, avoids the localized impact concentration caused by the fixed trajectory in traditional methods, improves the uniformity of material grinding, and reduces directional wear on the ball parts themselves and the mill liner. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application:

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

[0020] Figure 2 This is a structural schematic diagram of the cross-section of the spherical component in this utility model;

[0021] Figure 3 This is a schematic diagram of the inner ball component in this utility model;

[0022] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A;

[0023] Figure 5 This is a schematic diagram of the cross-section of the homogeneous sphere in this utility model.

[0024] In the diagram: 11. Spherical component; 12. Threaded groove; 2. Inner spherical component; 21. Homogeneous sphere; 22. Return spring; 23. Cylinder; 24. Boss; 3. Spiral groove mechanism; 31. Inner spherical groove; 32. Spiral blade baffle; 33. Solid small ball. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1 - Figure 5As shown, this utility model provides a technical solution: a wear-resistant steel ball with spiral grooves, including a spherical part 11, the outer wall of the spherical part 11 having a threaded groove 12, and an inner spherical part 2 provided on the inner wall of the spherical part 11. The inner spherical part 2 includes: a return spring 22, one end of which is fixedly connected to the inner wall of the spherical part 11, and the other end of which is fixedly connected to a homogeneous sphere 21. The return spring 22 extends from the inner wall of the spherical part 11 to the outer wall of the homogeneous sphere 21 in multiple directions. The outer wall of the homogeneous sphere 21 is arranged with a plurality of cylinders 23, and the cylinders 23 are provided with bosses 24. 2. As an outer wall groove structure, the grinding efficiency is improved and friction loss is reduced by changing the contact method between the spherical part 11 and the material. The threaded groove 12 transforms the traditional point contact of the sphere into micro-surface contact and line contact, increasing the impact surface to increase the force-bearing surface of the material. At the same time, larger materials can be embedded to achieve "material grinding material", reducing the direct collision loss of the spherical part 11. During the grinding of the spherical part 11 and the material, the spherical part 11 will be impacted. At this time, the homogeneous sphere 21 inside the spherical part 11 will move relative to each other, causing the return spring 22 to store force. Then, the cylinder 23 drives the boss 24 to form a local concentrated impact on the inner wall of the spherical part 11. Since the boss 24 has a small contact area and high pressure, the high-frequency vibration generated by its impact can be transmitted to the threaded groove 12, shaking off the residual material stuck in the groove, avoiding the decrease in grinding efficiency or the aggravation of local wear caused by the blockage of the threaded groove 12. This design converts external impact energy into self-cleaning power, forming a "grinding-impact-slag discharge" cycle mechanism, which is suitable for grinding high-viscosity or high-impurity materials. The inner wall of the homogeneous sphere 21 is provided with a spiral groove mechanism 3, which is used to randomly change the center of gravity of the device.

[0027] The spiral groove mechanism 3 includes an inner spherical groove 31, which is formed on the inner wall of the homogeneous sphere 21. A spiral blade baffle 32 is fixedly connected to the inner wall of the inner spherical groove 31. Several solid balls 33 are placed on the inner wall of the inner spherical groove 31. The solid balls 33 can slide back and forth along the spiral blade baffle 32. The spiral blade baffle 32 fixed to the inner wall of the inner spherical groove 31 forms a spiral channel. The solid balls 33 placed in the channel can slide back and forth along the baffle. When the homogeneous sphere 21 is impacted or its motion changes, the solid balls 33 are displaced along the spiral trajectory under the combined action of gravity, inertia, and centrifugal force. The random sliding of 3 changes the internal mass distribution of the device, causing dynamic adjustment of the overall center of gravity position, thereby achieving a randomized center of gravity adjustment effect. This makes the center of gravity of each ball part 11 change randomly. By randomly adjusting the center of gravity of a single ball part 11, the dispersion of the falling path of multiple ball parts 11 is changed, avoiding the local impact concentration caused by the fixed motion trajectory of traditional ball parts 11. This not only improves the grinding uniformity of the material, but also reduces the directional wear of the ball part 11 itself and the mill liner through irregular collisions. It is similar to the principle of steel ball rolling and dispersing load in linear guide rails, and is suitable for high-load ball milling scenarios in mining, cement and other fields.

[0028] The threaded grooves 12 are spirally distributed on the outer surface of the spherical part 11. The cross-section of the threaded grooves 12 is a U-shaped groove structure. Multiple return springs 22 are evenly distributed between the inner wall of the spherical part 11 and the homogeneous sphere 21. The return springs 22 are arranged radially. The cylinders 23 are arranged in an array along the outer wall of the homogeneous sphere 21. The cylinders 23 are fixedly set on the outer wall of the homogeneous sphere 21. The boss 24 is coaxially arranged with the cylinder 23. The spiral blade baffle 32 extends spirally along the inner wall of the inner spherical groove 31. The solid small ball 33 has different mass distributions. The homogeneous sphere 21 has a non-central offset structure to enhance the impact offset.

[0029] In use, the wear-resistant steel ball with spiral grooves of this utility model utilizes the spiral groove 12 as an outer wall groove structure. By changing the contact method between the ball part 11 and the material, it improves grinding efficiency and reduces frictional loss. The spiral groove 12 transforms the traditional point contact of a sphere into micro-surface contact and line contact, increasing the impact surface to increase the force-bearing surface of the material. At the same time, it can embed larger materials to achieve "material grinding material," reducing direct collision loss of the ball part 11. During grinding with the material, the ball part 11 is impacted. At this time, the homogeneous spheres 21 inside the ball part 11 will move relative to each other, causing the return spring 22 to store force. Subsequently, the cylinder 23 drives the boss 24 to form a local concentrated impact on the inner wall of the ball part 11. Due to the small contact area and high pressure of the boss 24, the high-frequency vibration generated by its impact can be transmitted to the spiral groove 12, shaking off the residual material stuck in the groove, avoiding the decrease in grinding efficiency or the aggravation of local wear caused by blockage of the spiral groove 12. This design converts external impact energy into self-cleaning power, forming a "grinding-impact-slag discharge" cycle mechanism, which is suitable for grinding scenarios of materials with high viscosity or high impurity content.

[0030] Solid balls 33 can slide back and forth along the spiral blade baffle 32. The spiral blade baffle 32, which is fixed to the inner wall of the inner spherical groove 31, forms a spiral channel. Solid balls 33 placed in the channel can slide back and forth along the baffle. When the homogeneous ball 21 is impacted or its motion state changes, the solid balls 33 shift their position along the spiral trajectory under the combined action of gravity, inertia and centrifugal force. The random sliding of the solid balls 33 changes the internal mass distribution of the device, resulting in a dynamic adjustment of the overall center of gravity position, thereby achieving a randomized center of gravity adjustment effect. This causes the center of gravity of each ball component 11 to change randomly. By randomly adjusting the center of gravity of a single ball component 11, the dispersion of the falling path of multiple ball components 11 is changed, avoiding the local impact concentration caused by the fixed motion trajectory of traditional ball components 11. This not only improves the grinding uniformity of the material, but also reduces the directional wear of the ball component 11 itself and the mill liner through irregular collisions. It is similar to the principle of steel ball rolling and dispersing load in a linear guide rail, and is suitable for high-load ball milling scenarios in mining, cement and other fields.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wear-resistant steel ball with spiral grooves, comprising a spherical component (11), characterized in that: The outer wall of the spherical component (11) is provided with a threaded groove (12), and an inner spherical component (2) is provided on the inner wall of the spherical component (11). The inner spherical component (2) includes: A return spring (22) is fixedly connected at one end to the inner wall of the spherical component (11), and at the other end to a homogeneous sphere (21). The return spring (22) extends from the inner wall of the spherical component (11) to the outer wall of the homogeneous sphere (21) in multiple directions. The outer wall of the homogeneous sphere (21) is provided with an array of cylinders (23), and the cylinders (23) are provided with bosses (24). The inner wall of the homogeneous sphere (21) is provided with a spiral groove mechanism (3) for randomly changing the center of gravity of the device.

2. The wear-resistant steel ball with spiral grooves according to claim 1, characterized in that: The spiral groove mechanism (3) includes an inner spherical groove (31), which is formed on the inner wall of a homogeneous sphere (21). A spiral blade baffle (32) is fixedly connected to the inner wall of the inner spherical groove (31), and several solid small balls (33) are placed on the inner wall of the inner spherical groove (31).

3. The wear-resistant steel ball with spiral grooves according to claim 2, characterized in that: The threaded groove (12) is spirally distributed on the outer surface of the spherical part (11), and the cross-section of the threaded groove (12) is a U-shaped groove structure.

4. A wear-resistant steel ball with spiral grooves according to claim 2, characterized in that: Multiple return springs (22) are evenly distributed between the inner wall of the spherical part (11) and the homogeneous sphere (21), and the return springs (22) are arranged radially.

5. A wear-resistant steel ball with spiral grooves according to claim 2, characterized in that: The cylinders (23) are arranged in an array along the outer wall of the homogeneous sphere (21), and the cylinders (23) are fixedly set on the outer wall of the homogeneous sphere (21).

6. A wear-resistant steel ball with spiral grooves according to claim 2, characterized in that: The boss (24) is coaxially arranged with the cylinder (23), and the spiral blade baffle (32) extends spirally along the inner wall of the inner spherical groove (31).

7. A wear-resistant steel ball with spiral grooves according to claim 2, characterized in that: The solid sphere (33) has a different mass distribution, and the homogeneous sphere (21) has a non-central bias structure to enhance the impact offset.

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