Stirring shaft for mixing equipment

Abstract

A stirring shaft for mixing equipment belongs to the technical field of auxiliary machines of machine tools, is used for solving the problem that blades of the stirring shaft are difficult to replace, and comprises a main shaft and a plurality of blade assemblies mounted on the main shaft in a sleeving and penetrating manner, each blade assembly comprises a blade mounting part, a blade fixing part and a blade, and the blade is clamped on the blade mounting part. The blade mounting piece is sleeved on the main shaft in a penetrating manner, and the blade fixing piece is used for clamping and fixing the blade mounting piece, so that the blade is movably mounted on the main shaft, and the problem that the blade is difficult to replace after the stirring shaft is used for a long time is effectively solved. According to the utility model, the blades on the stirring shaft are convenient to disassemble and replace; meanwhile, the segmented wear-resistant structures are arranged on the blades, so that the service life of each blade is balanced, and the problem that wear-resistant materials are wasted due to the fact that the end parts, far away from the main shaft, of the blades are abraded and the middle parts and the roots can be used or even the roots of the blades are intact is solved.

Description

Technical Field

[0001] This utility model relates to the field of machine tool auxiliary equipment technology, and in particular to a stirring shaft. Background Technology

[0002] Agitator shafts used for mixing multiple materials typically have multiple blades. Wear of these blades is inevitable during use, so they are often designed with movable installations for easy replacement after wear. While existing agitator shaft blades can also be disassembled, they are mostly bolted on. The problem is that exposed bolts are susceptible to material contamination and wear, making them difficult to remove after prolonged use. Even if the bolts don't contact the material, prolonged use can lead to seizing and corrosion, making blade removal and replacement difficult.

[0003] Furthermore, since the impeller blades typically rotate around the shaft, different positions on the blades experience varying speeds, leading to uneven wear at different locations, with the blade tips furthest from the shaft experiencing the most severe wear. Current blade designs involve welding or cladding a harder material onto the substrate to extend blade life, but this ignores the issue of uneven wear across different parts of the blade. The problem is that the blade tips may already be severely worn and require replacement, while the blade roots are almost untouched, resulting in a waste of wear-resistant material on the blades. Summary of the Invention

[0004] In view of the above problems of difficult blade replacement and waste of wear-resistant materials on the blades, it is necessary to propose a mixing shaft for mixing equipment to achieve convenient blade replacement and balanced overall blade life.

[0005] A mixing shaft for a mixing device includes a main shaft and a plurality of blade assemblies that are sleeved and mounted on the main shaft. Each blade assembly includes a blade mounting component, a blade fixing component, and blades. The blades are snapped into the blade mounting component, the blade mounting component is sleeved on the main shaft, and the blade fixing component secures the blade mounting component, thereby enabling the blades to be movably mounted on the main shaft and effectively preventing the problem of blades being difficult to replace after long-term use of the mixing shaft.

[0006] Furthermore, the mixing equipment's stirring shaft also includes a protective cover, which is installed on the blade fixing component to shield, block, and protect the blade fixing component. This prevents foreign objects from entering the blade fixing component during use and causing blade disassembly problems.

[0007] Furthermore, the main shaft includes a flange mounting end, a blank section, and a mounting section. The flange mounting end is used to cooperate with the stirring equipment, and the mounting section is used to install the blades.

[0008] Furthermore, the blade includes a first blade and a second blade. The second blade is disposed at the end of the installation section away from the blank section and has one layer thereon. The first blade is disposed at the end of the installation section near the blank section and has at least two layers thereon, thereby achieving full mixing of the material.

[0009] Furthermore, the blade mounting component is used to mount the first blade and the second blade on the mounting section. The blade mounting component has a through hole that matches the shape of the mounting section. The blade mounting component also has a blade mounting groove. The first blade and the second blade are engaged with the blade mounting component through the blade mounting groove. The blade mounting component is sleeved on the main shaft, thereby realizing the purpose of rotating the first blade and the second blade around the main shaft.

[0010] Furthermore, the blade fixing component is used to secure the blade mounting component to the mounting section, thereby ensuring that the first blade and the second blade are stably mounted on the main shaft. The blade fixing component includes a top pressure plate and a bottom pressure plate. The top pressure plate is located at one end of the mounting section near the blank section, and the bottom pressure plate is located at the end of the mounting section away from the blank section. The blade fixing component is provided with threaded through holes for securing the blade mounting component.

[0011] Furthermore, the first blade is provided with a first blade substrate, a first blade mounting body, a first blade wear-resistant structure, and a first blade guide structure; the first blade mounting body is disposed at one end of the first blade substrate for connection with the blade mounting component; the first blade wear-resistant structure is wrapped around the first blade substrate to protect the first blade substrate and improve the wear resistance of the first blade; the first blade wear-resistant structure includes a first end wear-resistant structure and a first rear wear-resistant structure, the first end wear-resistant structure is disposed at the end of the first blade away from the first blade mounting body, the first rear wear-resistant structure is arranged adjacent to the first end wear-resistant structure in a direction close to the first blade mounting body, and the thickness of the first end wear-resistant structure is greater than that of the first rear wear-resistant structure.

[0012] Furthermore, the second blade includes a second blade substrate, a second blade mounting body, a second blade wear-resistant structure, a second blade material guiding structure, and a second blade scraper. The second blade mounting body is disposed at one end of the second blade substrate for connection with the blade mounting component. The second blade wear-resistant structure surrounds the second blade substrate, protecting the second blade substrate and improving the wear resistance of the second blade. The second blade wear-resistant structure includes a second end wear-resistant structure and a second rear wear-resistant structure. The second end wear-resistant structure is disposed at the end of the second blade away from the second blade mounting body, and the second rear wear-resistant structure is arranged adjacent to the second end wear-resistant structure in a direction close to the second blade mounting body, with the thickness of the second end wear-resistant structure being greater than that of the second rear wear-resistant structure.

[0013] The beneficial effects of this utility model are as follows: by changing the way each blade is bolted to the main shaft to a form using blade mounting parts and blade fixing parts, the disassembly and replacement of blades on the stirring shaft are facilitated; at the same time, by setting segmented wear-resistant structures on the blades, the lifespan of each blade is balanced, and the problem of wasting wear-resistant materials caused by situations where the end of the blade far from the main shaft is worn while the middle and root are still usable, or even the root of the blade is intact, is avoided. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the stirring shaft of this utility model;

[0015] Figure 2 This is a schematic diagram of the spindle structure;

[0016] Figure 3 This is a three-dimensional schematic diagram of the first blade;

[0017] Figure 4 This is the front view of the first blade;

[0018] Figure 5 This is a top view of the first blade;

[0019] Figure 6 This is a three-dimensional schematic diagram of the second blade;

[0020] Figure 7 This is the front view of the second blade;

[0021] Figure 8 This is a top view of the second blade;

[0022] Figure 9 This is a schematic diagram of the blade mounting component structure;

[0023] Wherein, 1-main shaft; 2-first blade; 2.1-first blade base; 2.2-first blade mounting body; 2.4-first end wear-resistant structure; 2.3-first rear wear-resistant structure; 2.5-first blade guide structure; 2.6-first transition structure; 3-second blade; 3.1-second blade base; 3.2-second blade mounting body; 3.4-second end wear-resistant structure; 3.3-second rear wear-resistant structure; 3.5-second blade guide structure; 3.6-second transition structure; 3.7-connecting bracket; 3.8-connecting bracket transition structure; 3.9-scraper blade; 3.10-scraper blade wear-resistant structure; 4-blade mounting component; 5-bottom pressure plate; 6-top pressure plate. Detailed Implementation

[0024] To more clearly illustrate the technical solution of this utility model, the technical solution of the invention will be described in detail with reference to the accompanying drawings. Obviously, the following description is some typical embodiments of this utility model. For those skilled in the art, other solutions can be obtained based on these embodiments without creative effort.

[0025] In one embodiment, the mixing device using the stirring shaft of this patent application, such as... Figure 1-9 As shown.

[0026] In this embodiment, the mixing equipment's stirring shaft includes a main shaft 1 and a plurality of blade assemblies fitted onto the main shaft 1. Each blade assembly includes a blade mounting member 4, a blade fixing member, and blades. The blades are snapped into the blade mounting member 4, which is fitted onto the main shaft 1. The blade fixing member secures the blade mounting member 4, allowing the blades to be movably mounted on the main shaft 1. This effectively prevents the problem of difficulty in replacing blades after long-term use of the stirring shaft. Specifically, the blade mounting member 4 is fitted onto the main shaft 1, and one end of each blade is connected to the blade mounting member 4, achieving a relatively fixed connection between the blades and the main shaft 1. The blade fixing member is used to fix the plurality of blade mounting members 4 at relative positions on the main shaft 1, thereby achieving relative fixation of the blades on the main shaft 1, forming the stirring shaft.

[0027] As a supplement to this embodiment, the main shaft 1 includes a flange mounting end, a blank section, and a mounting section. The flange mounting end is used to cooperate with the stirring device, and the mounting section is used to mount the blades. In this embodiment, the flange mounting end is provided with a main shaft 1 connecting hole and a keyway. The main shaft 1 connecting hole is a through hole penetrating the flange mounting end, and the keyway is provided on the end face of the flange mounting end facing away from the blank section and the mounting section. The mounting section is a cylindrical segment with a polygonal cross-section, such as a hexagonal cylindrical segment, thereby effectively preventing the blades from slipping on the main shaft 1.

[0028] As a further supplement to this embodiment, the blades include a first blade 2 and a second blade 3; the second blade 3 is disposed at the end of the mounting section away from the blank section and has one layer, while the first blade 2 is disposed at the end of the mounting section near the blank section and has at least two layers, thereby achieving thorough mixing of the material. Specifically, each blade mounting member 4 can be provided with two blades. In this embodiment, a blade mounting member 4 is provided at the very end of the stirring shaft, and the blade mounting member 4 is provided with two second blades 3; the first blade 2 has four layers, that is, four more blade mounting members 4 are provided on the main shaft 1, and each blade mounting member 4 is provided with two first blades 2, thereby realizing a stirring shaft with ten blades, achieving thorough mixing of the material in the mixing equipment.

[0029] As a further supplement to this embodiment, the blade mounting member 4 is used to mount the first blade 2 and the second blade 3 on the mounting section. The blade mounting member 4 has a through hole that matches the shape of the mounting end, and the blade mounting member 4 also has a blade mounting groove. The first blade 2 and the second blade 3 are engaged with the blade mounting member 4 through the blade mounting groove. The blade mounting member 4 is sleeved on the main shaft 1, thereby realizing the purpose of rotating the first blade 2 and the second blade 3 around the main shaft 1. Specifically, the blade mounting groove has a first slot and a second slot. The first slot cooperates with the base of the blade, and the second slot cooperates with the mounting body of the blade, so as to firmly engage the first blade 2 and the second blade 3 with the blade mounting member 4. Since the first slot and the second slot are gradient and the blade mounting body is protruding, the blades are firmly set around the main shaft 1, and the blades will not detach from the main shaft 1 when the stirring shaft rotates at high speed. More specifically, each blade mounting component 4 is symmetrically provided with two first slots and two second slots, so that each blade mounting component 4 can be provided with two first blades 2 or two second blades 3.

[0030] As a further supplement to this embodiment, the blade fixing component is used to secure the blade mounting component 4 to the mounting section, thereby achieving stable mounting of the first blade 2 and the second blade 3 on the main shaft 1. The blade fixing component includes a top pressure plate 6 and a bottom pressure plate 5. The top pressure plate 6 is located at the end of the mounting section near the blank section, and the bottom pressure plate 5 is located at the end of the mounting section away from the blank section. Both blade fixing components are provided with threaded through holes for securing the blade mounting component 4. In this embodiment, the end of the mounting section away from the blank section is provided with a threaded hole. The bottom pressure plate 5 is placed at the end of the mounting section away from the blank section, and then bolts are used to fix the bottom pressure plate 5 to the main shaft 1, thereby preventing the blade mounting component 4 from falling off the main shaft 1. The top pressure plate 6 has a through hole in the middle that mates with the mounting section, and a ring of threaded through holes is provided around the top pressure plate 6. The five layers of blade mounting components 4 are pressed together by the locking nut, the clamping bolt, and the top pressure plate 6 to achieve stable installation of the blade.

[0031] As a supplement to this embodiment, the first blade 2 is provided with a first blade base 2.1, a first blade mounting body 2.2, a first blade wear-resistant structure, and a first blade guide structure 2.5; the first blade mounting body 2.2 is disposed at one end of the first blade base 2.1 for connection with the blade mounting component 4; the first blade wear-resistant structure wraps around the first blade base 2.1, playing a role in protecting the first blade base 2.1 and improving the wear resistance of the first blade; the first blade wear-resistant structure includes a first end wear-resistant structure 2.4 and a first rear wear-resistant structure 2.3, the first end wear-resistant structure 2.4 is disposed at the end of the first blade away from the first blade mounting body 2.2, and the first rear wear-resistant structure 2.3 is arranged adjacent to the first end wear-resistant structure 2.4 in a direction close to the first blade mounting body 2.2, and the thickness of the first end wear-resistant structure 2.4 is greater than that of the first rear wear-resistant structure 2.3. In this embodiment, a first blade wear-resistant structure is provided along the part of the first blade 2 used for stirring. To ensure that all parts of the first blade 2 have the same service life or wear resistance, the first blade wear-resistant structure includes a first end wear-resistant structure 2.4 and a first rear wear-resistant structure 2.3. The thickness of the first end wear-resistant structure 2.4 is greater than the thickness of the first rear wear-resistant structure 2.3. Furthermore, to allow material to pass smoothly through the first blade, a first blade guiding structure 2.5 is also provided on the first blade 2. The first blade guiding structure 2.5 is an inclined surface, thereby ensuring that the thickness of the blade facing the material is thinner than the thickness of the blade back, achieving… The material is lifted and scattered by the first blade guiding structure 2.5, improving the uniformity of material mixing. Simultaneously, a first transition structure 2.6 is provided between the first rear wear-resistant structure 2.3 and the first blade guiding structure 2.5, making the entire surface of the first blade smoother. The thickest wear-resistant structure is set on the cutting edge, and the thinnest wear-resistant structures are set on the back and bottom of the blade, with the thickness of the wear-resistant structure on the bottom being greater than that on the back. Specifically, for the first end wear-resistant structure 2.4, the thickest part is the cutting edge, followed by the wear-resistant layer on the top surface, then the wear-resistant layer on the bottom surface, and finally the wear-resistant layer on the back surface. Specifically, for the first rear wear-resistant structure 2.3, the thickness of the wear-resistant layer on the cutting edge and top surface is less than that of the first end wear-resistant structure 2.4, while the thickness of the wear-resistant layer on the back and bottom surfaces is equal.

[0032] As a supplement to this embodiment, the second blade 3 is provided with a second blade base 3.1, a second blade mounting body 3.2, a second blade wear-resistant structure, a second blade material guiding structure 3.5, and a second blade scraper; the second blade mounting body 3.2 is disposed at one end of the second blade base 3.1 for connection with the blade mounting component 4; the second blade wear-resistant structure wraps around the second blade base 3.1, playing a role in protecting the second blade base 3.1 and improving the wear resistance of the second blade; the second blade wear-resistant structure includes a second end wear-resistant structure 3.4 and a second rear wear-resistant structure 3.3, the second end wear-resistant structure 3.4 is disposed at the end of the second blade away from the second blade mounting body 3.2, and the second rear wear-resistant structure 3.3 is arranged adjacent to the second end wear-resistant structure 3.4 in a direction close to the second blade mounting body 3.2, and the thickness of the second end wear-resistant structure 3.4 is greater than that of the second rear wear-resistant structure 3.3. In this embodiment, a second blade wear-resistant structure is provided along the part of the second blade used for stirring. To ensure that all parts of the second blade 3 have the same service life or wear resistance, the second blade wear-resistant structure includes a second end wear-resistant structure 3.4 and a second rear wear-resistant structure 3.3. The thickness of the second end wear-resistant structure 3.4 is greater than the thickness of the second rear wear-resistant structure 3.3. Furthermore, to allow material to pass smoothly through the second blade, a second blade guiding structure 3.5 is also provided on the second blade 3. The second blade guiding structure 3.5 is an inclined surface, thereby ensuring that the thickness of the blade facing the material is thinner than the thickness of the blade back, achieving… The material is lifted and scattered by the second blade guiding structure 3.5, improving the uniformity of material mixing. Simultaneously, a second transition structure 3.6 is provided between the second rear wear-resistant structure 3.3 and the second blade guiding structure 3.5, making the entire surface of the second blade smoother. The thickest wear-resistant structure is set on the cutting edge, and the thinnest wear-resistant structures are set on the back and bottom of the blade, with the thickness of the wear-resistant structure on the bottom being greater than that on the back. Specifically, for the second end wear-resistant structure 3.4, the thickest part is the cutting edge, followed by the wear-resistant layer on the top surface, then the wear-resistant layer on the bottom surface, and finally the wear-resistant layer on the back surface. Specifically, for the second rear wear-resistant structure 3.3, the thickness of the wear-resistant layer on the cutting edge and top surface is less than that of the second end wear-resistant structure 3.4, while the thickness of the wear-resistant layer on the back and bottom surfaces is equal.

[0033] As a further supplement to this embodiment, the second blade scraper includes a connecting bracket 3.7 and a scraper blade 3.9. The scraper blade 3.9 is connected to the lower part of the second blade base 3.1 through the connecting bracket 3.7. The scraper blade 3.9 is used to stir the material at the bottom of the mixing device to achieve stirring of the material without dead angles. Furthermore, in order to reduce the resistance during the stirring process, a connecting bracket transition structure 3.8 is provided in the direction facing the material on the connecting bracket 3.7. The connecting bracket transition structure 3.8 is an inclined surface to facilitate the passage and stirring of the material. In order to better stir the material at the bottom of the mixing device, a guide inclined surface is provided in the direction facing the material on the scraper blade 3.9. The scraper blade 3.9 is also wrapped with a scraper blade wear-resistant structure 3.10. The wear-resistant layer thickness of the blade edge, blade back, blade bottom and blade top surface of the scraper blade wear-resistant structure 3.10 is the same as that of the second section wear-resistant structure 3.4, thereby achieving the same service life of the second blade as a whole and ensuring the minimum amount of wear-resistant material used.

[0034] In another embodiment, the mixing equipment's stirring shaft also includes a protective cover, which is installed on the blade fixing component to shield, block, and protect the blade fixing component. This can prevent foreign objects from entering the blade fixing component during use, thus avoiding difficulties in disassembling the blades.

[0035] By implementing the above-mentioned invention, the stirring shaft blades can be easily replaced, and the blade life and wear resistance can be balanced, thus avoiding the waste of wear-resistant materials.

[0036] The above embodiments are merely descriptions of a typical application of the technical solution of this utility model. Reasonable extensions can be made without requiring creative effort.

Claims

1. A stirring shaft for a mixing device, characterized in that, The device includes a main shaft and several blade assemblies that are sleeved and mounted on the main shaft. Each blade assembly includes a blade mounting component, a blade fixing component, and blades. The blades are snapped into the blade mounting component, the blade mounting component is sleeved on the main shaft, and the blade fixing component secures the blade mounting component, thereby enabling the blades to be movably mounted on the main shaft.

2. The stirring shaft for the mixing device as described in claim 1, characterized in that, The mixing equipment also includes a protective cover, which is installed on the blade fixing component and serves to shield, block and protect the blade fixing component.

3. The stirring shaft for the mixing device as described in claim 1, characterized in that, The main shaft includes a flange mounting end, a blank section, and a mounting section. The flange mounting end is used to cooperate with the stirring equipment, and the mounting section is used to install the blades.

4. The stirring shaft for a mixing device as described in claim 3, characterized in that, The blade includes a first blade and a second blade; the second blade is disposed at the end of the installation section away from the blank section and has one layer, and the first blade is disposed at the end of the installation section near the blank section and has at least two layers.

5. The stirring shaft for a mixing device as described in claim 4, characterized in that, The blade mounting component has a through hole that matches the shape of the mounting section. The blade mounting component also has a blade mounting groove. The first blade and the second blade are engaged with the blade mounting component through the blade mounting groove. The blade mounting component is sleeved on the main shaft, thereby realizing the purpose of rotating the first blade and the second blade around the main shaft.

6. The stirring shaft for a mixing device as described in claim 5, characterized in that, The blade mounting slot is provided with a first slot and a second slot. The first slot cooperates with the blade base, and the second slot cooperates with the blade mounting body.

7. The stirring shaft for a mixing device as described in claim 5, characterized in that, The blade fixing component includes a top pressure plate and a bottom pressure plate. The top pressure plate is located at one end of the mounting section near the blank section, and the bottom pressure plate is located at the end of the mounting section away from the blank section. Each blade fixing component is provided with a threaded through hole for securing the blade mounting component.

8. The stirring shaft for a mixing device as described in claim 3, characterized in that, The first blade has a first blade base, a first blade mounting body, a first blade wear-resistant structure, and a first blade guide structure; the first blade mounting body is disposed at one end of the first blade base for connection with the blade mounting component; the first blade wear-resistant structure is wrapped around the first blade base to protect the first blade base and improve the wear resistance of the first blade; the first blade wear-resistant structure includes a first end wear-resistant structure and a first rear wear-resistant structure, the first end wear-resistant structure is disposed at the end of the first blade away from the first blade mounting body, the first rear wear-resistant structure is arranged adjacent to the first end wear-resistant structure in a direction close to the first blade mounting body, and the thickness of the first end wear-resistant structure is greater than that of the first rear wear-resistant structure.

9. The stirring shaft for a mixing device as described in claim 3, characterized in that, The second blade comprises a second blade base, a second blade mounting body, a second blade wear-resistant structure, a second blade guiding structure, and a second blade scraper. The second blade mounting body is disposed at one end of the second blade base for connection with the blade mounting component. The second blade wear-resistant structure surrounds the second blade base, protecting the second blade base and improving the wear resistance of the second blade. The second blade wear-resistant structure includes a second end wear-resistant structure and a second rear wear-resistant structure. The second end wear-resistant structure is disposed at the end of the second blade away from the second blade mounting body, and the second rear wear-resistant structure is arranged adjacent to the second end wear-resistant structure in a direction close to the second blade mounting body, with the thickness of the second end wear-resistant structure being greater than that of the second rear wear-resistant structure.

10. The stirring shaft for a mixing device as described in claim 9, characterized in that, The second blade scraper includes a connecting bracket and a scraper blade. The scraper blade is connected to the lower part of the second blade base through the connecting bracket. The scraper blade is used to stir the material at the bottom of the mixing device.

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