Front unloading type inclined shaft skip bucket for bauxite mining

Abstract

The utility model provides a front unloading type inclined shaft skip bucket for bauxite mining, which belongs to the technical field of inclined shaft skip buckets and comprises a skip bucket main body, a bottom surface is arranged at the bottom of the skip bucket main body, and the skip bucket main body comprises a hyperbolic curve type side wall. The hyperbolic curve type side wall is provided with a hyperbolic curve section in the length direction of the skip bucket body, the focus of the hyperbolic curve section is located on the center line of the skip bucket body, and the hyperbolic curve type side wall is composed of at least two continuous hyperbolic curve sections. The half shaft length of each hyperbolic curve section changes along with the change of the height of the skip bucket main body; the skip bucket main body is provided with a traction arm and a roller, the traction arm is connected with the top of the hyperbolic curve type side wall through a hinge and is used for realizing the traction motion of the skip bucket main body, and the defect that the side wall of the traditional skip bucket is easy to abrade is overcome.

Description

Technical Field

[0001] The utility model belongs to the technical field of inclined - shaft skip, and specifically relates to a front - unloading inclined - shaft skip for bauxite mining. Background Technique

[0002] Bauxite is an important industrial raw material, mainly used for extracting alumina and then producing metallic aluminum. The mining of bauxite is usually carried out in open - pit mines or underground mines. In underground - mine mining, the front - unloading inclined - shaft skip is a commonly used transportation device for transporting the excavated ore from underground to the ground. The front - unloading inclined - shaft skip is a special transportation tool for inclined shafts, which is usually composed of a skip body, a traction system, a discharging system, etc. The skip body is generally made of steel structure, with high strength and wear resistance, and can withstand the impact and wear of ore. The traction system is responsible for towing the skip from the bottom of the inclined shaft to the top, and the discharging system is used to dump the ore in the skip.

[0003] Although the front - unloading inclined - shaft skip plays an important role in bauxite mining, the traditional design still has some deficiencies, which affect its working efficiency and service life. The following are some of the main drawbacks of the traditional front - unloading inclined - shaft skip for bauxite mining: The side walls of the traditional skip usually adopt a flat or simple curved - surface design. During the ore transportation process, due to the impact and friction of the ore, the side walls are prone to wear. Especially in the inclined shaft, due to the large inclination angle, the wear of the side walls by the ore during transportation is particularly serious. This not only increases the maintenance cost but also reduces the service life of the skip. The design of the traditional skip discharging port is often not scientific enough, resulting in easy blockage or retention of ore during the discharging process. Especially when the discharging door is opened, due to the poor fluidity of the ore, the discharging speed is slow, affecting the working efficiency. In addition, the design of the discharging door also has certain defects and is prone to jamming. The traditional skip fails to fully consider the problem of structural strength during design. Especially at the connection between the side wall and the bottom, due to the lack of effective strengthening measures, the skip is prone to deformation or damage during long - term use. In addition, due to insufficient side - wall strength, the skip may be distorted or fractured when subjected to a large impact. The traditional skip is relatively difficult to maintain, especially for the inspection and repair of the internal structure, which requires the disassembly of many components and is time - consuming and laborious. Content of the Utility Model

[0004] In view of this, the front - unloading inclined - shaft skip for bauxite mining provided by the utility model solves the drawback that the side walls of the traditional skip are prone to wear, and improves the load - bearing capacity and service life of the skip.

[0005] The utility model is implemented as follows:

[0006] The utility model provides a front-dumping inclined shaft skip for bauxite mining, including a skip body. A bottom surface is arranged at the bottom of the skip body. Among them, the skip body includes a hyperbolic side wall, and the hyperbolic side wall has a hyperbolic cross-section along the length direction of the skip body. The foci of the hyperbolic cross-section are located on the center line of the skip body. The hyperbolic side wall is composed of at least two continuous hyperbolic segments, and the semi-axis length of each hyperbolic segment changes with the change of the height of the skip body.

[0007] The skip body is provided with a traction arm and rollers. The traction arm is connected to the top of the hyperbolic side wall through a hinge for realizing the traction movement of the skip body.

[0008] The technical effects of the front-dumping inclined shaft skip for bauxite mining provided by the utility model are as follows: The special geometric shape of the hyperbolic side wall can significantly reduce the sliding friction of materials during transportation, while enhancing the overall structural rigidity of the skip, improving its load-bearing capacity and service life. The multi-segment continuous hyperbolic design can further optimize the flow path of materials, making the materials more evenly distributed during transportation, reducing local overload phenomena, and improving the working efficiency of the skip.

[0009] The hyperbolic cross-section refers to the cross-sectional shape along the length direction of the skip presenting a hyperbolic form.

[0010] Specifically, the hyperbolic cross-section can be divided into two cases:

[0011] Hyperbola along the horizontal direction: In this case, the hyperbolic cross-section presents a hyperbolic shape in the horizontal direction.

[0012] Hyperbola along the vertical direction: In this case, the hyperbolic cross-section presents a hyperbolic shape in the vertical direction.

[0013] On the basis of the above technical solutions, the front-dumping inclined shaft skip for bauxite mining of the utility model can also be improved as follows:

[0014] Among them, the vertex of the hyperbolic cross-section of the hyperbolic side wall is located at the top of the skip body, and the distance from the vertex to the bottom of the skip body is between one-third and one-half of the total length of the skip body.

[0015] The beneficial effect of adopting the above improvement scheme is that by setting the vertex of the hyperbolic cross-section at a specific position, the distribution of materials in the skip can be optimized, the direct impact of materials on the bottom of the skip can be reduced, thereby reducing wear and improving the service life of the skip.

[0016] Further, a plurality of longitudinal reinforcing ribs are provided on the inner surface of the hyperbolic side wall. The reinforcing ribs extend along the length direction of the skip body and form an angle with the inner surface of the hyperbolic side wall, and the angle is 5° to 15°.

[0017] The beneficial effects of adopting the above improvement scheme are as follows: The design of the longitudinal reinforcing ribs can effectively improve the bending strength of the hyperbolic side wall, reduce the deformation caused by material impact during transportation, and thus extend the service life of the skip.

[0018] Further, the number of the reinforcing ribs is at least three, and they are evenly distributed on the inner surface of the hyperbolic side wall.

[0019] The beneficial effects of adopting the above improvement scheme are as follows: The evenly distributed longitudinal reinforcing ribs can ensure the uniform distribution of the structural strength of the entire skip, avoid local weak links, and improve the overall structural stability of the skip.

[0020] Further, the hyperbolic side wall is connected to the bottom surface by welding. The bottom surface is a planar structure and forms an angle of 90° ± 5° with the hyperbolic side wall.

[0021] Further, the thickness of the bottom of the hyperbolic side wall is greater than that of the top, which is used to enhance the structural strength of the bottom of the skip body.

[0022] The beneficial effects of adopting the above improvement scheme are as follows: The design of thickening the bottom can enhance the structural strength of the bottom of the skip, reduce the wear and deformation of the bottom caused by long-term load-bearing, and extend the service life of the skip.

[0023] Further, a plurality of protrusions are provided on the outer surface of the hyperbolic side wall, and the protrusions are arranged at intervals along the length direction of the hyperbolic side wall.

[0024] The beneficial effects of adopting the above improvement scheme are as follows: The design of the protrusions on the outer surface can further enhance the structural rigidity of the hyperbolic side wall, reduce the deformation of the side wall under external forces, and improve the stability of the skip.

[0025] Further, a wear-resistant coating is provided on the inner surface of the hyperbolic side wall, and the thickness of the wear-resistant coating is between 0.5 mm and 1.5 mm.

[0026] The beneficial effects of adopting the above improvement scheme are as follows: The design of the wear-resistant coating can further improve the wear resistance of the hyperbolic side wall, reduce the wear of the inner surface of the side wall, and extend the service life of the skip.

[0027] Further, a plurality of rollers are provided at the bottom of the skip body.

[0028] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the design of the material inlet matches the top of the hyperbolic side wall, which can ensure that the material enters the bucket smoothly, reduce the possibility of material blockage, and improve the loading efficiency.

[0029] Furthermore, the material of the hyperbolic side wall is high manganese steel or stainless steel.

[0030] Compared with the prior art, the utility model provides a bauxite mining using a front-discharging inclined shaft skip with the following beneficial effects:

[0031] Improved load-bearing capacity and service life:

[0032] The utility model significantly improves the load-bearing capacity and service life of the skip by adopting a hyperbolic sidewall design. The special geometric shape of the hyperbolic sidewall can significantly reduce the sliding friction of materials during transportation, thereby reducing the degree of wear on the sidewall. Compared with traditional flat or simple curved sidewalls, the hyperbolic sidewall can better disperse the impact force of the ore and reduce the deformation and damage of the sidewall. In addition, the design of the hyperbolic sidewall also enhances the overall structural rigidity of the skip, making it less likely to deform when subjected to a large load, thereby extending the service life of the skip;

[0033] Enhanced structural strength:

[0034] The utility model significantly enhances the structural strength of the bucket by providing a plurality of longitudinal reinforcing ribs on the inner surface of the hyperbolic side wall. The longitudinal reinforcing ribs extend along the length direction of the bucket and form an angle with the inner surface of the hyperbolic side wall, wherein the angle is 5° to 15°. This design not only improves the bending strength of the hyperbolic side wall and reduces deformation caused by material impact during transportation, but also ensures uniform distribution of the structural strength of the entire bucket through the evenly distributed reinforcing ribs, avoids local weak links, and improves the overall structural stability of the bucket. In addition, a plurality of protrusions are provided on the outer surface of the hyperbolic side wall, and these protrusions are arranged at intervals along the length direction of the bucket, which further enhances the structural rigidity of the side wall, reduces the deformation of the side wall under the action of external forces, and improves the stability of the bucket;

[0035] Improved security:

[0036] The utility model significantly improves the safety of the bucket by adopting high manganese steel or stainless steel as the material of the hyperbolic side wall. High manganese steel or stainless steel has excellent wear resistance and corrosion resistance, can significantly reduce the wear of the inner surface of the side wall, and extend the service life of the bucket. In addition, by arranging a wear-resistant coating on the inner surface of the hyperbolic side wall, the wear resistance of the side wall is further improved, the wear of the inner surface of the side wall is reduced, and the service life of the bucket is extended. The thickness of the wear-resistant coating is between 0.5 mm and 1.5 mm, ensuring the durability and effectiveness of the coating. Brief Description of the Drawings

[0037] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments of the present invention. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0038] Figure 1 It is an example diagram of a front-dumping inclined shaft skip for bauxite mining;

[0039] Figure 2 It is a side view of a front-dumping inclined shaft skip for bauxite mining;

[0040] Figure 3 It is a sectional view of the hyperbolic side wall of a front-dumping inclined shaft skip for bauxite mining;

[0041] In the drawings, the list of components represented by each reference numeral is as follows:

[0042] 10. Skip main body; 11. Bottom surface; 12. Traction arm; 14. Roller; 20. Hyperbolic side wall; 21. Reinforcing rib. Detailed Embodiments

[0043] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0044] As Figure 1 、 Figure 2 、 Figure 3 shown, it is the first embodiment of a front-dumping inclined shaft skip for bauxite mining provided by the present invention. In this embodiment, it includes a skip main body 10, and a bottom surface 11 is provided at the bottom of the skip main body 10. Among them, the skip main body 10 includes a hyperbolic side wall 20, and the hyperbolic side wall 20 has a hyperbolic cross-section along the length direction of the skip main body 10. The foci of the hyperbolic cross-section are located on the center line of the skip main body 10. The hyperbolic side wall 20 is composed of at least two continuous hyperbolic segments, and the semi-axis length of each hyperbolic segment changes with the change of the height of the skip main body 10;

[0045] The skip main body 10 is provided with a traction arm 12 and a roller 14. The traction arm 12 is connected to the top of the hyperbolic side wall 20 through a hinge to realize the traction movement of the skip main body 10.

[0046] Transportation stage:

[0047] Start the traction system:

[0048] Start the skip through the towing arm and move it upward along the transportation track.

[0049] Ensure the stable operation of the towing system and prevent the skip from shaking or tilting during movement.

[0050] Monitor the operating status:

[0051] During transportation, monitor the operating status of the skip to ensure that the hyperbolic sidewall does not undergo significant deformation when withstanding the impact of materials.

[0052] Monitor whether the reinforcing ribs play a role in enhancing the rigidity of the sidewall and prevent the sidewall from bending or twisting during transportation.

[0053] Among them, in the above technical solution, the vertex of the hyperbolic cross-section of the hyperbolic sidewall 20 is located at the top of the skip main body 10, and the distance from the vertex to the bottom of the skip main body 10 is between one-third and one-half of the total length of the skip main body 10.

[0054] Further, in the above technical solution, a plurality of longitudinal reinforcing ribs 21 are provided on the inner surface of the hyperbolic sidewall 20. The reinforcing ribs 21 extend along the length direction of the skip main body 10 and form an angle with the inner surface of the hyperbolic sidewall 20, and the angle is 5° to 15°.

[0055] Further, in the above technical solution, the number of the reinforcing ribs 21 is at least three, and they are evenly distributed on the inner surface of the hyperbolic sidewall 20.

[0056] Further, in the above technical solution, the hyperbolic sidewall 20 is connected to the bottom surface 11 by welding. The bottom surface 11 is a planar structure and forms an angle of 90° ± 5° with the hyperbolic sidewall 20.

[0057] Further, in the above technical solution, the thickness of the bottom of the hyperbolic sidewall 20 is greater than that of the top, which is used to enhance the structural strength of the bottom of the skip main body 10.

[0058] Further, in the above technical solution, a number of protrusions are provided on the outer surface of the hyperbolic sidewall 20, and the protrusions are arranged at intervals along the length direction of the hyperbolic sidewall 20.

[0059] Further, in the above technical solution, a wear-resistant coating is provided on the inner surface of the hyperbolic sidewall 20, and the thickness of the wear-resistant coating is between 0.5 mm and 1.5 mm.

[0060] Further, in the above technical solution, rollers 14 are provided at the bottom of the skip main body 10, and there are a plurality of rollers, which are respectively located at the four corner positions of the bottom of the main body.

[0061] Furthermore, in the above technical solution, the material of the hyperbolic sidewall 20 is high manganese steel or stainless steel.

[0062] Specifically, the principle of the present utility model is as follows:

[0063] Mechanical analysis of the hyperbolic sidewall:

[0064] The design of the hyperbolic sidewall adopts a hyperbolic cross-section, and the foci of this cross-section are located on the center line of the skip. This design enables the sidewall to better disperse stress when withstanding the impact of materials, reducing local stress concentration, and thus reducing the wear degree of the sidewall. The vertex of the hyperbolic cross-section of the hyperbolic sidewall is located at the top of the skip, and the distance from the vertex to the bottom of the skip is between one-third and one-half of the total length of the skip. This design allows for a natural transition area when the material enters the skip, reducing the direct impact of the material on the sidewall, and thus reducing the wear degree of the sidewall. The hyperbolic sidewall is composed of at least two continuous hyperbolic segments, and the semi-axis length of each hyperbolic segment changes with the height of the skip. This multi-segment continuous hyperbolic design can further optimize the flow path of the material, making the material more evenly distributed during transportation, reducing local overload phenomena, and improving the working efficiency of the skip;

[0065] Mechanical analysis of the reinforcing ribs:

[0066] Setting a plurality of longitudinal reinforcing ribs on the inner surface of the hyperbolic sidewall can significantly improve the bending strength of the sidewall. The longitudinal reinforcing ribs extend along the length direction of the skip and form an angle α with the inner surface of the hyperbolic sidewall, where α is between 5° and 15°. This design enables the reinforcing ribs to effectively disperse stress when the sidewall is subjected to external forces, reducing the deformation of the sidewall. The number of longitudinal reinforcing ribs is at least three and is evenly distributed on the inner surface of the hyperbolic sidewall. This evenly distributed design can ensure that the structural strength of the entire skip is evenly distributed, avoiding local weak links and improving the overall structural stability of the skip;

[0067] Mechanical analysis of the protrusions:

[0068] Setting a number of protrusions on the outer surface of the hyperbolic sidewall, and these protrusions are arranged at intervals along the length direction of the skip. The design of the protrusions can further enhance the structural rigidity of the hyperbolic sidewall, reduce the deformation of the sidewall under external forces, and improve the stability of the skip. The height H of the protrusions is between two and three times the thickness T of the hyperbolic sidewall. This height design can effectively disperse external forces, avoid structural damage caused by excessive local stress, and improve the durability of the skip;

[0069] Material selection and application of wear-resistant coatings:

[0070] The materials for the hyperbolic sidewall are selected as high manganese steel or stainless steel. These two materials have excellent anti-wear ability and corrosion resistance, which can significantly reduce the wear of the inner surface of the sidewall and extend the service life of the skip. In addition, a wear-resistant coating is provided on the inner surface of the hyperbolic sidewall, and the thickness of the coating is between 0.5 mm and 1.5 mm. This design can further improve the wear resistance of the sidewall, reduce the wear of the inner surface of the sidewall, and extend the service life of the skip. The selection and application of the wear-resistant coating are based on the research results of materials science, ensuring the durability and effectiveness of the coating.

Claims

1. A front-discharging inclined shaft skip for bauxite mining, comprising a skip body (10), wherein a bottom surface (11) is arranged at the bottom of the skip body (10), characterized in that: The bucket body (10) comprises a hyperbolic side wall (20), the hyperbolic side wall (20) having a hyperbolic section along the length direction of the bucket body (10), the focus of the hyperbolic section being located on the center line of the bucket body (10), the hyperbolic side wall (20) being composed of at least two continuous hyperbolic segments, and the semi-axis length of each hyperbolic segment changes with the change of the height of the bucket body (10); The bucket body (10) is provided with a traction arm (12) and a roller (14); the traction arm (12) is connected to the top of the hyperbolic side wall (20) via a hinge, and is used to realize the traction movement of the bucket body (10).

2. A front-discharging inclined shaft skip for bauxite mining according to claim 1, characterized in that: The apex of the hyperbolic cross section of the hyperbolic side wall (20) is located at the top of the bucket body (10), and the distance from the apex to the bottom of the bucket body (10) is between one third and one half of the total length of the bucket body (10).

3. A front-discharging inclined shaft skip for bauxite mining according to claim 2, characterized in that: The inner surface of the hyperbolic side wall (20) is provided with a plurality of longitudinal reinforcing ribs (21), the reinforcing ribs (21) extending along the length direction of the bucket body (10) and forming an angle with the inner surface of the hyperbolic side wall (20), the angle being 5° to 15°.

4. A front-discharging inclined shaft skip for bauxite mining according to claim 3, characterized in that: The number of the reinforcing ribs (21) is at least three and they are evenly distributed on the inner surface of the hyperbolic side wall (20).

5. A front-discharging inclined shaft skip for bauxite mining according to claim 4, characterized in that: The hyperbolic side wall (20) is connected to the bottom surface (11) by welding; the bottom surface (11) is a planar structure, and the angle formed with the hyperbolic side wall (20) is 90°±5°.

6. A front-discharging inclined shaft skip for bauxite mining according to claim 5, characterized in that: The thickness of the bottom of the hyperbolic side wall (20) is greater than that of the top, so as to enhance the structural strength of the bottom of the bucket body (10).

7. A front-discharging inclined shaft skip for bauxite mining according to claim 6, characterized in that: The outer surface of the hyperbolic side wall (20) is provided with a plurality of protrusions, and the protrusions are arranged at intervals along the length direction of the hyperbolic side wall (20).

8. A front-discharging inclined shaft skip for bauxite mining according to claim 7, characterized in that: The inner surface of the hyperbolic side wall (20) is provided with a wear-resistant coating, and the thickness of the wear-resistant coating is between 0.5 mm and 1.5 mm.

9. A front-discharging inclined shaft skip for bauxite mining according to claim 8, characterized in that: The bottom of the bucket body (10) is provided with a roller (14), and there are a plurality of rollers (14).

10. A front-discharging inclined shaft skip for bauxite mining according to claim 9, characterized in that: The material of the hyperbolic side wall (20) is high manganese steel or stainless steel.

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