A paddle for a dryer

Abstract

The utility model relates to the technical field of paddle, disclose a paddle for drying machine, it includes the paddle body, hollow shaft that connects each other, paddle body, hollow shaft are all hollow structure, paddle body includes central connecting portion, connecting through -hole, hollow shaft includes through hole, through hole sets up on the outer wall of hollow shaft, through hole and connecting through -hole through connection, central connecting portion and the outer wall fixed connection of hollow shaft. The hollow structure of the paddle body and hollow shaft of the design of the improvement of many aspects of structure, and through the through hole and connecting through -hole realize the through of internal flow channel, improve the contact area of paddle body and material, be fixed with paddle side wall and hollow shaft outer wall through the connecting piece and the shaft sleeve respectively, can effectively resist the torque and bending stress that paddle bears when stirring high viscosity material, prevent the connection from loosening or damaging because of long -term stress, improve the mechanical strength and durability, reduce the failure rate.

Description

Technical Field

[0001] This utility model relates to the field of blade technology, and in particular to a blade for a dryer. Background Technology

[0002] Existing blade layouts and structures are typically quite fixed. For materials with different viscosities, moisture contents, and adhesion, a single blade system cannot simultaneously achieve optimal stirring, mixing, and heat transfer performance, limiting the application range of a single unit. When blades need to be replaced due to wear or damage, most traditional designs employ integral welding or integrated manufacturing with the shaft. This makes replacing a single blade difficult, generally requiring the replacement of the entire shaft or even the entire rotor assembly, resulting in a large workload for maintenance. Utility Model Content

[0003] To address the aforementioned technical problems, the dryer impeller provided by this utility model features multifaceted structural improvements. The improved design incorporates a hollow impeller body and hollow shaft, with through holes and connecting holes facilitating the internal flow channels. This maximizes the contact area with the material, thereby improving heat transfer efficiency. Connecting plates and bushings are fixed to the impeller sidewall and hollow shaft outer wall respectively, forming a stable frame structure that effectively resists the torque and bending stress borne by the impeller when stirring high-viscosity materials. This prevents the connections from loosening or being damaged due to long-term stress, enhancing the mechanical strength and durability of the entire impeller system and reducing the failure rate.

[0004] This utility model is achieved using the following technical solution:

[0005] A dryer impeller includes: an impeller body and a hollow shaft connected to each other, both of which are hollow structures. The impeller body includes a central connecting portion and a connecting through hole, the connecting through hole being disposed within the central connecting portion. The hollow shaft includes a through hole disposed on the outer wall of the hollow shaft, the through hole being connected to the connecting through hole. The central connecting portion is fixedly connected to the outer wall of the hollow shaft.

[0006] Preferably, it further includes a stabilizing mechanism, which is fixedly connected to the blade body and the hollow shaft. The stabilizing mechanism includes a connecting piece, a bushing, and a bushing connecting hole.

[0007] Preferably, the connecting piece is fixedly connected to the side wall of the blade body, and the bushing is fixedly connected to the outer wall of the hollow shaft.

[0008] Preferably, the blade body is semi-cylindrical, and the central connecting part is located at the center of the blade body.

[0009] Preferably, the blade bodies are arranged in pairs as a group, with the central connecting portions of each pair of blade bodies arranged opposite each other.

[0010] Preferably, the blade body includes a connecting stabilizer bar, which is disposed on the connecting through hole and matches the through hole.

[0011] Preferably, the hollow shaft includes a fixed plate and a connecting shaft, the fixed plate is disposed at both ends of the hollow shaft, and the connecting shaft is fixedly disposed on the fixed plate.

[0012] Preferably, the hollow shaft further includes an input / output port, which is disposed on a fixed plate.

[0013] Preferably, a sealing ring is provided inside the through hole.

[0014] Preferably, the outer wall of the hollow shaft is provided with a blade connecting groove and a stabilizer plate mounting groove. The blade connecting groove matches the central connecting part, and the stabilizer plate mounting groove is provided with a stabilizer plate mounting hole. The stabilizer plate mounting groove matches the shaft sleeve.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention features several structural improvements. The redesigned impeller body and hollow shaft are both hollow structures, with through holes and connecting holes enabling the internal flow channels to connect. This allows the heating medium to flow directly and smoothly from inside the hollow shaft, filling the entire impeller body. The impeller itself becomes a heating surface, maximizing the contact area with the material, thereby improving heat transfer efficiency and ensuring faster and more uniform heating of the material. The central connecting part, fixed to the outer wall of the hollow shaft, provides the main support point for the impeller. An improved stabilizing mechanism, fixed to the impeller sidewall and hollow shaft outer wall via connecting plates and bushings respectively, forms a frame-like stabilizing structure. This effectively resists the torque and bending stress experienced by the impeller when stirring high-viscosity materials, preventing loosening or damage at the connection points due to long-term stress, improving the mechanical strength and durability of the entire impeller system, and reducing the failure rate. The improved detachable semi-cylindrical structure provides less resistance to material stirring during rotation, resulting in a gentler and more uniform mixing effect. The arc-shaped structure itself has better mechanical properties and can better withstand the pressure of the internal medium and the resistance of external materials. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this embodiment;

[0018] Figure 2 This is a three-dimensional structural diagram of a hollow shaft according to this embodiment;

[0019] Figure 3 This is a three-dimensional structural diagram of a stabilizing mechanism according to this embodiment;

[0020] Figure 4 This is a three-dimensional structural diagram of another stabilizing mechanism in this embodiment;

[0021] Figure 5 This is a three-dimensional structural diagram of another hollow shaft in this embodiment;

[0022] Figure 6 This is a three-dimensional structural diagram of a protective plate and a through-hole plug according to this embodiment;

[0023] Figure 7 This is a three-dimensional structural diagram of one combination in this embodiment;

[0024] Figure 8 This is a three-dimensional structural diagram of another combination in this embodiment;

[0025] Figure 9 This is a bottom-view three-dimensional structural diagram of another combination in this embodiment.

[0026] Explanation of the reference numerals in the figure:

[0027] 1. Blade body; 11. Central connecting part; 12. Connecting through hole; 13. Connecting part stabilizer bar; 14. Protective plate; 15. Through hole rubber plug;

[0028] 2. Hollow shaft; 21. Fixing plate; 22. Connecting shaft; 23. Input / output port; 24. Blade connecting groove; 25. Through hole; 26. Sealing ring; 27. Stabilizer plate mounting groove; 28. Stabilizer plate mounting hole;

[0029] 3. Stabilizing mechanism; 31. Connecting piece; 32. Bushing; 33. Bushing connecting hole. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0031] Example 1

[0032] like Figures 1 to 9 As shown in the figure, the dryer blade provided in this embodiment includes: a blade body 1 and a hollow shaft 2 connected to each other. Both the blade body 1 and the hollow shaft 2 are hollow structures. The blade body 1 includes a central connecting part 11 and a connecting through hole 12, with the connecting through hole 12 disposed in the central connecting part 11. The hollow shaft 2 includes a through hole 25 disposed on the outer wall of the hollow shaft 2, with the through hole 25 communicating with the connecting through hole 12. The central connecting part 11 is fixedly connected to the outer wall of the hollow shaft 2.

[0033] Preferably, it further includes a stabilizing mechanism 3, which is fixedly connected to the blade body 1 and the hollow shaft 2. The stabilizing mechanism 3 includes a connecting piece 31, a bushing 32, and a bushing connecting hole 33.

[0034] Preferably, the connecting piece 31 is fixedly connected to the side wall of the blade body 1, and the bushing 32 is fixedly connected to the outer wall of the hollow shaft 2.

[0035] The dryer impeller in this embodiment features several structural improvements. Both the impeller body and the hollow shaft are hollow, and the internal flow channels are interconnected through through holes and connecting holes. This allows the heating medium to flow directly and smoothly from inside the hollow shaft, filling the entire impeller body. The impeller itself becomes a heating surface, maximizing the contact area with the material, thereby improving heat transfer efficiency and ensuring faster and more uniform heating of the material. The central connecting part, fixed to the outer wall of the hollow shaft, provides the main support point for the impeller. An independent stabilizing mechanism is added, which is fixed to the side wall of the impeller and the outer wall of the hollow shaft via connecting plates and bushings, forming an additional frame-like stabilizing structure. This effectively resists the torque and bending stress experienced by the impeller when stirring high-viscosity materials, preventing the connections from loosening or being damaged due to long-term stress, improving the mechanical strength and durability of the entire impeller system, and reducing the failure rate. The improved detachable semi-cylindrical structure provides less resistance to material stirring during rotation, resulting in a gentler and more uniform mixing effect. The arc-shaped structure itself has better mechanical properties and can better withstand the pressure of the internal medium and the resistance of external materials.

[0036] Example 2

[0037] like Figures 1 to 9 As shown, the dryer blade provided in this embodiment is an improvement on embodiment 1. The device includes: a blade body 1 and a hollow shaft 2 connected to each other. Both the blade body 1 and the hollow shaft 2 are hollow structures. The blade body 1 includes a central connecting part 11, a connecting through hole 12, a connecting part stabilizing rod 13, a protective plate 14, and a through hole rubber plug 15. The central connecting part 11 is provided with a connecting through hole 12. The hollow shaft 2 includes a fixing plate 21, a connecting shaft 22, an input / output port 23, a blade connecting groove 24, a through hole 25, a sealing rubber ring 26, a stabilizing plate mounting groove 27, and a stabilizing plate mounting hole 28.

[0038] The hollow shaft 2 has a through hole 25 on its outer wall, which is connected to the connecting through hole 12.

[0039] It also includes a stabilizing mechanism 3, which is fixedly connected to the blade body 1 and the hollow shaft 2. The stabilizing mechanism 3 includes a connecting piece 31, a bushing 32, and a bushing connecting hole 33.

[0040] The connecting piece 31 is fixedly connected to the side wall of the blade body 1, and the bushing 32 is fixedly connected to the outer wall of the hollow shaft 2.

[0041] Example 3

[0042] like Figures 1 to 9 As shown, the dryer blade provided in this embodiment is an improvement on the above embodiment. The blade body 1 is cylindrical, and the central connecting part 11 is located at the center of the blade body 1. During installation, the blade body 1 passes through the blade body 1 and is fixedly installed on the outer wall of the hollow shaft 2.

[0043] Preferably, the blade body 1 is semi-cylindrical, and the central connecting part 11 is located at the center of the blade body 1.

[0044] Example 4

[0045] like Figures 1 to 9 As shown, the dryer blade provided in this embodiment is an improvement based on the above embodiment. The central connecting part 11 is located at the center of the blade body 1 and is the connection part between the blade body 1 and the hollow shaft 2. The shape and size of the central connecting part 11 are matched according to the connection requirements with the hollow shaft to ensure that it can cooperate with the blade connecting groove 24 on the hollow shaft.

[0046] The connecting through hole 12 is opened on the central connecting part 11 and is used to connect the blade body 1 and the hollow shaft 2 through. The diameter and number of the connecting through hole 12 can be flexibly adjusted. Multiple evenly distributed through holes are set to ensure the stability of the internal steam or heat transfer liquid passage.

[0047] Example 5

[0048] like Figures 1 to 9 As shown, the dryer blade provided in this embodiment is an improvement on the above embodiment. The connecting stabilizer 13 is disposed inside the central connecting part, and its function is to enhance the structural strength and stability of the central connecting part. When the blade rotates at high speed or is subjected to a large external force, the connecting stabilizer 13 can effectively resist deformation and prevent the connection between the blade body 1 and the hollow shaft 2 from loosening. Preferably, the connecting stabilizer 13 is a hollow structure.

[0049] Example 6

[0050] like Figures 1 to 9As shown, the dryer blade provided in this embodiment is an improvement on the above embodiment. A protective plate 14 is installed on the central connecting part, and a through-hole plug 15 is used to cover the through-hole 25. After being fixed using the protective plate 14, it is convenient to adjust the installation position of the blade body 1. The excess blade body 1 is removed, its through-hole 25 is sealed with the through-hole plug 15, and then fixed using the protective plate 14.

[0051] Example 7

[0052] like Figures 7 to 9 As shown, the dryer blades provided in this embodiment are an improvement on the above embodiment. The two sets of blade bodies 1 and hollow shaft 2 cooperate with each other to achieve the stirring function, and can also inject steam or high-temperature liquid through the input and output ports 23 to dry at high temperature during the stirring process. Figure 7 In this configuration, two blade bodies 1 are installed in pairs to achieve heating and drying over a larger area.

[0053] like Figure 8 , Figure 9 In this configuration, the blade body 1 is arranged crosswise on one side of the hollow shaft 2, which provides a better vibration and stirring effect.

[0054] In summary, the above embodiments of this utility model, through various structural improvements, feature hollow structures for both the blade body and the hollow shaft, with through holes and connecting holes enabling the internal flow channels to connect. This allows the heating medium to flow directly and smoothly from inside the hollow shaft, filling the entire blade body. The blade itself becomes a heating surface, maximizing the contact area with the material, thereby improving heat transfer efficiency and making the material heat up faster and more evenly. The fixed connection between the central connecting part and the outer wall of the hollow shaft provides the main support point for the blade. The improved stabilizing mechanism, which is fixed to the blade sidewall and the outer wall of the hollow shaft respectively through connecting plates and bushings, forms a frame-like stabilizing structure. This effectively resists the torque and bending stress borne by the blade when stirring high-viscosity materials, preventing the connection from loosening or being damaged due to long-term stress, improving the mechanical strength and durability of the entire blade system, and reducing the failure rate. The improved detachable semi-cylindrical structure provides less resistance to stirring the material during rotation, resulting in a gentler and more uniform mixing effect. The arc-shaped structure itself has better mechanical properties and can better withstand the pressure of the internal medium and the resistance of external materials.

[0055] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A paddle for a dryer, comprising: A blade body and a hollow shaft are interconnected, both of which are hollow structures. The blade body includes a central connecting portion and a connecting through hole, the connecting through hole being disposed within the central connecting portion; the hollow shaft includes a through hole disposed on the outer wall of the hollow shaft, the through hole being connected to the connecting through hole; the central connecting portion is fixedly connected to the outer wall of the hollow shaft.

2. The dryer blade according to claim 1, characterized in that, It also includes a stabilizing mechanism, which is fixedly connected to the blade body and the hollow shaft. The stabilizing mechanism includes a connecting piece, a bushing, and a bushing connecting hole.

3. The dryer blade according to claim 2, characterized in that, The connecting piece is fixedly connected to the side wall of the blade body, and the bushing is fixedly connected to the outer wall of the hollow shaft.

4. The dryer blade according to claim 2, characterized in that, The outer wall of the hollow shaft is provided with a blade connecting groove and a stabilizer plate mounting groove. The blade connecting groove matches the central connecting part, and the stabilizer plate mounting groove is provided with a stabilizer plate mounting hole. The stabilizer plate mounting groove matches the shaft sleeve.

5. The dryer blade according to claim 1, characterized in that, The blade body is semi-cylindrical, and the central connecting part is located at the center of the blade body.

6. The dryer blade according to claim 5, characterized in that, The blade body is arranged in pairs as a group, with the central connecting part of each pair of blade bodies arranged opposite each other.

7. The dryer blade according to claim 1, characterized in that, A sealing ring is installed inside the through hole.

8. The dryer blade according to claim 1, characterized in that, The blade body includes a connecting stabilizer bar, which is disposed on a connecting through hole and matches the through hole.

9. The dryer blade according to claim 1, characterized in that, The hollow shaft includes a fixed plate and a connecting shaft. The fixed plate is disposed at both ends of the hollow shaft, and the connecting shaft is fixedly disposed on the fixed plate.

10. The dryer blade according to claim 9, characterized in that, The hollow shaft also includes an input / output port, which is mounted on a fixed plate.

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