Fluted disc structure for mining mechanical equipment

Abstract

The utility model discloses a fluted disc structure for mining mechanical equipment, which comprises a circular disc body and a tooth body, two ends of the circular disc body are respectively provided with an annular groove, and a mounting hole is axially formed in the center of each annular groove; the tooth body comprises a first tooth body and a second tooth body, and the first tooth body and the second tooth body are coaxially located on the peripheral edge of the round disc body. According to the fluted disc structure, a double-fluted-disc tooth-shaped structure is adopted, materials can be conveniently screened, separation of different particle sizes can be achieved, the screening and particle size separation effects are good, the utilization rate of products is greatly improved by improving the separation efficiency, and the fluted disc structure is simple in overall structure, convenient to operate and use and particularly suitable for being used and popularized.

Description

Technical Field

[0001] This utility model relates to the field of mining machinery and equipment technology, specifically to a gear disc structure for mining machinery and equipment. Background Technology

[0002] Mining machinery and equipment refers to specialized machinery used in mining, mineral processing, and prospecting. A large number of cranes, conveyors, ventilation fans, and drainage machinery used in mining operations are collectively referred to as mining machinery and equipment. Among these, particle size separators are commonly used ore separation devices that process ores, making low-quality ores usable and separating valuable minerals from gangue. This processing step is particularly important; through crushing followed by separation or direct separation, products of different particle sizes (different grades) can be used in different applications, thereby improving product utilization.

[0003] Currently, the main types of particle size separators used include vibrating screens, drum screens, and gravity-flow screens. Vibrating screens primarily utilize an inclined installation to create a specific angle. Vibration is generated by a vibrating motor or eccentric blocks (wheels), causing materials with dimensions smaller than the screen openings to fall through and onto the underside of the screen. Larger materials continuously move towards the discharge port, achieving particle size and grade separation. The disadvantages of this method are: rapid screen wear, large footprint, easy material clogging of the screen openings, high installation height, and unsuitability for processing excessively large particles. Drum screens primarily utilize the continuous rotation of a ring-shaped screen body, causing materials to tumble within the screen. Materials smaller than the screen openings fall through, while larger materials continuously move towards the discharge port, achieving separation of different particle sizes and grades. The disadvantages of this method are: rapid screen wear, large footprint, easy material clogging of the screen openings, unsuitability for processing excessively large particles, and low processing efficiency. Self-flowing screen: This method primarily utilizes profiles arranged at specific intervals to form the screen body. The installation angle is created by the height difference between the front and back sections. When material is conveyed onto the screen body, it slides down the screen body under its own weight. Material smaller than the spacing between the profiles falls to the bottom of the screen body, while larger material continuously moves towards the discharge port, achieving particle size and grade separation. The disadvantage of this method is that the tilt angle must be designed appropriately based on the characteristics of different materials. If the angle is too small, the material cannot slide down and accumulates on the screen body; if the angle is too large, the material slides down too quickly, leading to incomplete separation. The irregularity of the material can also cause clogging problems.

[0004] The screen body used in coal gangue particle size separators is mainly composed of multiple toothed discs, with a single toothed disc structure as follows: Figure 1 As shown, the sieve body assembled by the rotating shaft has a local toothed disc arrangement structure as follows: Figure 2As shown, the screen structure formed by the arrangement and assembly of toothed discs between adjacent shafts has material discharge gaps of F1 and F2 between the two adjacent shafts. Using the existing toothed disc arrangement results in a large space occupation, small material discharge gaps, low screening efficiency, and difficulty in material screening and particle size separation. To improve material screening efficiency and more effectively separate materials by particle size, enabling products of different particle sizes (different grades) to be used in different applications, thereby increasing product utilization, reducing the production and procurement costs of screening equipment, and saving on-site equipment installation space, it is necessary to improve the existing toothed discs and provide a different toothed disc structure to solve the above problems. This is essential. Utility Model Content

[0005] The technical problem to be solved by this utility model is to address the problems existing in the background technology by providing a toothed disc structure that is simple in structure, efficient and easy to use. This toothed disc structure not only facilitates the screening of materials, but also meets the requirements for separating particles of different sizes, thereby improving the separation efficiency and thus improving the utilization rate of products. Specifically, it is a toothed disc structure for mining machinery equipment.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a toothed disc structure for mining machinery includes a circular disc body and a toothed disc body. An annular groove is provided at each end of the circular disc body, and a mounting hole is formed along the axial direction at the center of each annular groove. The toothed disc body includes a first tooth and a second tooth, both coaxially located on the outer periphery of the circular disc body. Two second teeth are provided, symmetrically distributed on both sides of the first tooth. The outer diameter of the first tooth is larger than that of the second tooth. Multiple evenly arranged tooth grooves are provided on the outer periphery of the first tooth, and multiple evenly arranged half-tooth grooves are provided on the outer periphery of the second tooth. The tooth grooves and half-tooth grooves are arranged in a staggered manner on the corresponding first and second teeth. The tooth grooves and half-tooth grooves instantly change the material drop gap in the assembled screen device, thus conveying the screened material forward. The screened material contains some difficult-to-screen materials with dimensions similar to the material drop gap.

[0007] Furthermore, in the toothed disc structure for mining machinery equipment described in this utility model, the tooth body further includes a material drop ring. The material drop ring is coaxially arranged with the first tooth and the second tooth on the outer periphery of the circular disc body. There are two material drop rings, which are symmetrically distributed on the outside of the second tooth. The outer diameter of the material drop ring is smaller than the outer diameter at the lowest position of the half-tooth groove in the second tooth, while the outer diameter of the second tooth is the same as the outer diameter at the lowest position of the tooth groove in the first tooth. A stepped structure is formed between the first tooth, the second tooth, and the material drop ring.

[0008] Furthermore, in the toothed disc structure for mining machinery equipment described in this utility model, the tooth groove is a triangular structure with an open top, and the root height of the tooth groove is the same as the height of the outer peripheral edge of the second tooth body; the semi-tooth groove is a semi-circular structure with an open top, and the root height of the semi-tooth groove is greater than the height of the outer peripheral edge of the material drop ring.

[0009] Furthermore, in the toothed disc structure for mining machinery equipment described in this utility model, there are eight tooth grooves and eight half tooth grooves. The eight tooth grooves and half tooth grooves are arranged in a ring and uniformly on the outer peripheral edges of the corresponding first tooth body and second tooth body. The roots of the tooth grooves and the roots of the half tooth grooves are arranged radially in the outer peripheral edge of the circular disc body, and the height difference between the roots of the tooth grooves and the roots of the half tooth grooves is equal to the radius of the half tooth groove.

[0010] Furthermore, in the gear disc structure for mining machinery equipment described in this utility model, a symmetrical keyway communicating with the mounting hole is also provided in the annular groove in the circular disc body.

[0011] Furthermore, in the toothed disc structure for mining machinery equipment described in this utility model, the number of tooth bodies is two sets, the two sets of tooth bodies are coaxially arranged on the outer periphery of the circular disc body, and the interval between the two sets of tooth bodies is the same as the thickness of the first tooth body.

[0012] Furthermore, in the toothed disc structure for mining machinery equipment described in this utility model, the circular disc body and the tooth body are integrally formed, and the circular disc body and two sets of coaxially arranged tooth bodies constitute a double-toothed disc tooth structure.

[0013] The toothed disc structure for mining machinery described in this utility model has the following advantages compared to existing technologies: Because a toothed body is provided on the outer periphery of the circular disc body, the toothed body includes a first tooth, a second tooth, and a material drop ring. Multiple evenly arranged tooth grooves are provided on the outer periphery of the first tooth, and multiple evenly arranged semi-tooth grooves are provided on the outer periphery of the second tooth. These tooth grooves and semi-tooth grooves instantly change the material drop gap in the assembled screen device, effectively controlling the material on the screen and difficult-to-screen materials. The system provides more efficient forward conveying, and the stepped material discharge gap is formed between the first tooth body, the second tooth body, and the material discharge ring. It adopts a double-tooth disc tooth structure. With the same tooth thickness and the same axial distance, the number of material discharge holes formed between two adjacent sets of stepped material discharge gaps is greater than the number of material discharge holes formed by the existing single-tooth disc tooth structure. This makes it easier for materials of different particle sizes to be separated. Large materials are lifted on the upper part of the teeth between the two teeth, while small materials are located between the two teeth, which makes it easier to screen and separate the particles.

[0014] Therefore, the toothed disc structure described in this utility model, with its double-toothed disc shape, not only facilitates the screening of materials but also meets the requirements for separating particles of different sizes. It has good screening and particle size separation effects, greatly improving the utilization rate of products by increasing separation efficiency. Its overall structure is simple, convenient to operate and use, and is particularly suitable for widespread application. Attached Figure Description

[0015] The present invention will now be described in further detail with reference to the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the existing gear disc structure;

[0017] Figure 2 This is a partial structural diagram of a sieve body assembled using an existing toothed disc;

[0018] Figure 3 This is a three-dimensional structural diagram of the toothed disc described in this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the toothed disc described in this utility model;

[0020] Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure along the AA direction;

[0021] Figure 6 for Figure 5 Enlarged schematic diagram of the local structure at point B;

[0022] Figure 7 This is a partial structural diagram of a sieve body assembled using the toothed disc described in this utility model.

[0023] The figure shows: 1-circular disc body, 2-tooth body, 21-first tooth, 22-second tooth, 23-feeding ring, 3-annular groove, 4-mounting hole, 5-symmetrical keyway, 6-tooth groove, 7-half tooth groove, 8-tooth groove. Detailed Implementation

[0024] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0025] It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding. They are not intended to limit the scope of this invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of this invention, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," and "right" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection" and "provided with" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] It should be noted that the term "comprising" or any other variation is 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. Example 1

[0028] like Figures 3 to 6As shown, the toothed disc structure for mining machinery provided in this embodiment includes a circular disc body 1 and a toothed disc body 2. An annular groove 3 is provided at each end of the circular disc body 1, and a mounting hole 4 is formed along the axial direction at the center of the annular groove 3. A symmetrical keyway 5 communicating with the mounting hole 4 is also formed within the annular groove 3 of the circular disc body 1. The toothed disc body 2 includes a first tooth 21 and a second tooth 22, both coaxially located on the outer periphery of the circular disc body 1. Two second teeth 22 are provided, symmetrically distributed within the annular groove 3. On both sides of the first tooth body 21, and with the outer diameter of the first tooth body 21 being larger than that of the second tooth body 22, multiple evenly arranged tooth grooves 6 are provided on the outer peripheral edge of the first tooth body 21, while multiple evenly arranged semi-tooth grooves 7 are provided on the outer peripheral edge of the second tooth body 22. The tooth grooves 6 and semi-tooth grooves 7 are arranged at intervals and staggered on the corresponding first tooth body 21 and second tooth body 22, and the tooth grooves 6 and semi-tooth grooves 7 achieve instantaneous changes in the material drop gap in the assembled screen body device, thereby conveying the screened material forward. The screened material contains some difficult-to-screen material with a size similar to the material drop gap, thus enabling more efficient forward conveying of both the screened material and the difficult-to-screen material. The tooth groove 6 is a triangular structure with an open top, and the root height of the tooth groove 6 is the same as the height of the outer peripheral edge of the second tooth body 22; the semi-tooth groove 7 is a semi-circular structure with an open top, and the root height of the semi-tooth groove 7 is greater than the height of the outer peripheral edge of the material drop ring 23.

[0029] Furthermore, in the toothed disc structure described in this embodiment, the tooth body 2 further includes a material drop ring 23. The material drop ring 23 is coaxially arranged with the first tooth body 21 and the second tooth body 22 on the outer periphery of the circular disc body 1. There are two material drop rings 23, which are symmetrically distributed on the outside of the second tooth body 22. The outer diameter of the material drop ring 23 is smaller than the outer diameter at the lowest position of the half tooth groove 7 in the second tooth body 22, while the outer diameter of the second tooth body 22 is the same as the outer diameter at the lowest position of the tooth groove 6 in the first tooth body 21. A stepped material drop gap is formed between the first tooth body 21, the second tooth body 22 and the material drop ring 23. The material drop gap refers to the gap that can only be formed after two sets of adjacent shafts are assembled. A single toothed disc will not form a material drop gap.

[0030] In the specific manufacturing process, a toothed disc structure for mining machinery equipment as described in this embodiment is adopted. There are eight tooth grooves 6 and eight half tooth grooves 7. The eight tooth grooves 6 and eight half tooth grooves 7 are arranged in a ring and evenly on the outer peripheral edges of the corresponding first tooth body 21 and second tooth body 22. The roots of the tooth grooves 6 and the roots of the half tooth grooves 7 are arranged radially in the outer peripheral edge of the circular disc body 1, and the height difference between the roots of the tooth grooves 6 and the roots of the half tooth grooves 7 is equal to the radius of the half tooth groove 7. Example 2

[0031] This embodiment, based on Embodiment 1, improves the screening capacity of the toothed disc to meet the separation of different particle sizes. It employs the toothed disc structure provided in this embodiment, where two sets of tooth bodies 2 are coaxially arranged on the outer periphery of the circular disc body 1, with the spacing between the two sets of tooth bodies 2 being the same as the thickness of the first tooth 21. In the manufacturing process, the circular disc body 1 and the tooth bodies 2 are integrally formed, which improves their structural strength. The circular disc body 1 and the two sets of coaxially arranged tooth bodies 2 constitute a double-toothed disc tooth structure.

[0032] The toothed disc structure for mining machinery described in this embodiment includes a circular disc body 1 and a toothed body 2. The toothed body 2 includes a first tooth 21, a second tooth 22, and a material drop ring 23. The first tooth 21, the second tooth 22, and the material drop ring 23 are coaxially arranged in the outer peripheral edge of the circular disc body 1, forming a stepped material drop gap between them. A screen is formed by arranging multiple toothed discs axially along a connecting shaft. The screen body has multiple evenly arranged toothed grooves 6 on the outer periphery of the first toothed body 21, and multiple evenly arranged semi-toothed grooves 7 on the outer periphery of the second toothed body 22. The multiple toothed grooves 6 form several grooves in the screen body formed by the axial arrangement of the screen body. The function of the grooves is that when the screened disc is running, since the difficult-to-screen material always stays in the gap formed between adjacent shafts, the screened disc suddenly changes the spatial structure of the gap during operation, thereby adjusting the position and shape of the difficult-to-discharge material, and indirectly increasing the friction force on the difficult-to-discharge material, thereby moving the material forward. In addition, the toothed disc is equipped with mounting holes 4 and symmetrical keyways 5 that mate with the connecting shaft. The tooth top surface of the tooth groove 6 is designed to be lower at the front and higher at the back with a rounded transition, which can avoid material jamming during operation. The first tooth body 21 is designed to form a certain slope from the tooth top to the tooth bottom, with the top being smaller and the bottom being larger. The two tooth tops are arranged in the axial direction with a certain size to form the toothed disc. The tooth groove 8 is formed between the two rows of tooth tops (the tooth groove 8 is the groove part between the two first tooth bodies 21). The structure of the tooth groove 8 is the opposite of the tooth top shape in the radial direction, with the top being larger and the bottom being smaller. The structural design advantages of the tooth top and tooth groove 8 are that when the material is being processed and screened, the sticky material is easier to fall off when powdery material sticks, and the blocky material is less likely to get stuck between the two teeth, so as to achieve low failure rate operation and high efficiency screening of the equipment.

[0033] The toothed disc structure for mining machinery described in this utility model involves assembling multiple toothed discs and connecting shafts, which are then mounted on the equipment to form a screen body structure. Its partial structure is shown below. Figure 7 As shown, a toothed disc on a connecting shaft includes two sets of toothed bodies 2, labeled A and C, and one set of toothed bodies 2 on an adjacent connecting shaft, labeled B. After assembly, the resulting material leakage gaps are f1, f2, f3, f4, and f5, respectively. Since the toothed discs on adjacent connecting shafts on the screen body have a certain distance between them, if the gap f1 is axa, then the gap between the toothed discs on two adjacent connecting shafts is <a (but not necessarily less than). Figure 2 As shown, this is the currently used gear arrangement structure. The two gears on one connecting shaft are labeled A1 and C1, and the gear on the adjacent connecting shaft is labeled B1. After assembly, the material leakage gaps formed are F1 and F2, respectively.

[0034] The optimized toothed disc arrangement was analyzed compared with the original arrangement, using the blanking gap formed by the three tooth tips as a reference. For example, the optimized arrangement... Figure 7 The total material discharge gap formed by the three sets of tooth bodies 2, A, B, and C, is f2+f3+f4+(f1+f5) / 2. During material handling and screening, when powdery materials stick together, the sticky materials are easier to detach, and lumpy materials are less likely to get stuck between the two teeth, thus achieving low failure rate operation and efficient screening. Before optimization... Figure 2 The total material discharge gap formed by the three tooth tips A1, B1 and C1 is F1+F2. If the material discharge gap design before and after optimization is the same and the tooth thickness is the same, the number of material discharge holes after optimization is at least 50% higher than that before optimization at the same axial distance. In addition, when the groove formed by adjacent tooth tips is deeper, materials of different particle sizes are more likely to be separated. Large materials are lifted by the two teeth to the top of the tooth tip, and small materials are located between the two teeth, which makes it easier to screen the materials and separate the particle size.

[0035] Therefore, it can be seen that by adopting the toothed disc structure described in this utility model, since a toothed body 2 is provided on the outer peripheral edge of the circular disc body 1, the toothed body 2 includes a first tooth 21, a second tooth 22, and a material drop ring 23. Multiple evenly arranged tooth grooves 6 are provided on the outer peripheral edge of the first tooth 21, and multiple evenly arranged semi-tooth grooves 7 are provided on the outer peripheral edge of the second tooth 22. The tooth grooves 6 and semi-tooth grooves 7 achieve instantaneous changes in the material drop gap in the assembled screen device, thereby enabling more efficient forward conveying of the screened material and difficult-to-screen materials. The material is fed through a stepped material feeding gap formed between the first tooth body 21, the second tooth body 22, and the material feeding ring 23. A double-tooth disc tooth structure is adopted, so that with the same tooth thickness and axial distance, the number of material feeding holes formed between adjacent sets of stepped material feeding gaps is greater than that formed by existing tooth disc tooth structures. This makes it easier for materials of different particle sizes to separate into layers. Larger pieces of material are lifted to the top of the teeth between the two teeth, while smaller pieces are located between the two teeth, making it easier to screen and separate the particles.

[0036] In summary, the toothed disc structure described in this utility model is applicable to screening and particle size separation in various mines. It can be widely used in equipment such as coal gangue particle size separators, roller screens, and mud-stone separators. It can reduce equipment size and installation space, thereby reducing investment and maintenance costs. It also offers energy savings and reduced management costs. The optimized toothed disc structure not only facilitates material screening but also meets the requirements for separating different particle sizes. It provides excellent screening and particle size separation effects, significantly improving product utilization by increasing separation efficiency. Its overall structure is simple, easy to operate and use, and is particularly suitable for widespread application.

[0037] Other aspects of this utility model that are not detailed herein are all conventional techniques known to those skilled in the art.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Various modifications and variations can be made by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. made using the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tooth disc structure for a mining machine equipment, comprising a circular disc body (1) and a tooth body (2), characterized in that: An annular groove (3) is provided at each end of the circular disc body (1), and a mounting hole (4) is provided at the center of the annular groove (3) along its axial direction; the tooth body (2) includes a first tooth (21) and a second tooth (22), the first tooth (21) and the second tooth (22) are coaxially located on the outer periphery of the circular disc body (1), wherein there are two second teeth (22), and the two second teeth (22) are symmetrically distributed on both sides of the first tooth (21), and the... The outer diameter of the first tooth body (21) is larger than the outer diameter of the second tooth body (22). Multiple uniformly arranged tooth grooves (6) are provided on the outer peripheral edge of the first tooth body (21), while multiple uniformly arranged half tooth grooves (7) are provided on the outer peripheral edge of the second tooth body (22). The tooth grooves (6) and half tooth grooves (7) are arranged in a staggered manner on the corresponding first tooth body (21) and second tooth body (22). The tooth grooves (6) and half tooth grooves (7) can instantly change the material drop gap in the assembled screen body device, thereby conveying the material on the screen forward.

2. A tooth disc structure for a mining machine device according to claim 1, characterized in that: The tooth body (2) also includes a material drop ring (23). The material drop ring (23) is coaxially arranged with the first tooth body (21) and the second tooth body (22) on the outer periphery of the circular disc body (1). There are two material drop rings (23). The two material drop rings (23) are symmetrically distributed on the outside of the second tooth body (22). The outer diameter of the material drop ring (23) is smaller than the outer diameter at the lowest position of the half tooth groove (7) in the second tooth body (22), while the outer diameter of the second tooth body (22) is the same as the lowest position of the tooth groove (6) in the first tooth body (21). A stepped structure is formed between the first tooth body (21), the second tooth body (22) and the material drop ring (23).

3. A tooth disc structure for a mining machine device according to claim 2, characterized in that: The tooth groove (6) is a triangular structure with an open top, and the root height of the tooth groove (6) is the same as the height of the outer peripheral edge of the second tooth body (22); the semi-tooth groove (7) is a semi-circular structure with an open top, and the root height of the semi-tooth groove (7) is greater than the height of the outer peripheral edge of the material drop ring (23).

4. A tooth disc structure for a mining machine device according to claim 3, characterized in that: There are eight tooth grooves (6) and eight half tooth grooves (7). The eight tooth grooves (6) and eight half tooth grooves (7) are arranged in a ring on the outer peripheral edge of the corresponding first tooth body (21) and second tooth body (22). The roots of the tooth grooves (6) and the roots of the half tooth grooves (7) are arranged radially in the outer peripheral edge of the circular disk body (1). The height difference between the roots of the tooth grooves (6) and the roots of the half tooth grooves (7) is equal to the radius of the half tooth groove (7).

5. A tooth disc structure for a mining machine device according to claim 4, characterized in that: A symmetrical keyway (5) communicating with the mounting hole (4) is also provided in the annular groove (3) in the circular disc body (1).

6. A tooth disc structure for a mining machine device according to claim 5, characterized in that: The number of tooth bodies (2) is two sets. The two sets of tooth bodies (2) are coaxially arranged on the outer periphery of the circular disk body (1), and the spacing between the two sets of tooth bodies (2) is the same as the thickness of the first tooth (21).

7. A tooth disc structure for a mining machine device according to claim 6, characterized in that: The circular disc body (1) and the tooth body (2) are integrally formed, and the circular disc body (1) and the two groups of coaxially arranged tooth bodies (2) form a double-tooth disc tooth shape structure.

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