Split type spline stirring shaft

By designing a split splined stirring shaft, and utilizing a combination of spline grooves, positioning shells, and mounting components, the problem of difficult stirring shaft length adjustment is solved, enabling rapid installation and disassembly of the stirring shaft, thereby improving production efficiency and ease of operation.

CN224127031UActive Publication Date: 2026-04-17NANJING KUNLUN MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING KUNLUN MASCH CO LTD
Filing Date
2025-04-25
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

In existing technologies, the length of the stirring shaft cannot be flexibly adjusted, which means that the entire stirring shaft needs to be replaced when facing different stirring needs. This is difficult to disassemble, affects production efficiency, and increases labor burden.

Method used

It adopts a split spline stirring shaft design, including a shaft assembly and a stirring assembly. The stirring shaft can be efficiently assembled and easily disassembled through the mounting parts. The combination of spline groove, positioning shell and mounting parts ensures stable connection and easy disassembly of the stirring shaft.

Benefits of technology

It enables rapid installation and disassembly of the stirring shaft, reduces disassembly difficulty, improves production efficiency, reduces the workload of workers, and ensures the continuity of stirring operations.

✦ Generated by Eureka AI based on patent content.

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Abstract

The split type spline stirring shaft comprises a shaft body assembly, the shaft body assembly comprises a spline shaft, a spline groove, positioning shells and mounting pieces, the spline groove is formed in the surface of one side of the spline shaft, the positioning shells are fixed to the two ends of one side of the spline shaft, and the mounting pieces are arranged in inner cavities of the positioning shells; and a stirring assembly. The stirring shaft has the beneficial effects that the efficient splicing and convenient disassembly of the stirring shaft body can be realized by arranging the mounting piece, the defects of the traditional integrated stirring shaft are effectively avoided, and in the traditional design, when the length of the stirring shaft needs to be adjusted, the whole stirring shaft has to be disassembled, so that the whole stirring shaft cannot be disassembled. When materials are stirred, the stirring shaft is replaced with a long or short stirring shaft to meet the requirement for stirring the materials, the operation mode seriously disturbs normal stirring work, the labor burden of workers is greatly increased, and the problem can be easily solved by adopting the design of the mounting piece.
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Description

Technical Field

[0001] This utility model relates to the technical field of chemical equipment accessories, and in particular to a split spline stirring shaft. Background Technology

[0002] With the diversification of production materials, the refinement of production processes, and the requirement for reasonable and smooth production flows, there is an increasing need to design, manufacture, or improve material mixing devices based on material density, moisture content, viscosity, and other factors, especially for new materials and new production lines.

[0003] Currently, most splined mixing shafts on the market adopt an integrated structure design to achieve material mixing. However, in actual mixing processes, the drawbacks of this integrated design have gradually become apparent. When facing different mixing needs and requiring an extension of the mixing shaft length, due to its integrated molding characteristics, the length of the mixing shaft cannot be flexibly adjusted, and only mixing shafts of different specifications can be replaced. Because the integrated mixing shaft is extremely difficult to disassemble during subsequent maintenance and use, once there is a need to lengthen the mixing shaft, the entire mixing shaft must be disassembled and replaced. This will undoubtedly seriously interfere with the normal operation of the mixing work, resulting in a significant reduction in production efficiency. At the same time, this also greatly increases the workload of the staff and causes many problems in actual operation. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] In view of the problems existing in the above and / or existing split spline stirring shafts, this utility model is proposed.

[0006] Therefore, the problem that this utility model aims to solve is that the existing technology is not convenient for quick installation and disassembly of the stirring shaft body.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a split-type spline stirring shaft, comprising a shaft assembly, the shaft assembly including a spline shaft, a spline groove, a positioning shell, and a mounting component, the spline groove being formed on one side surface of the spline shaft, the positioning shell being fixed to both ends on one side of the spline shaft, and the mounting component being disposed in the inner cavity of the positioning shell; and a stirring assembly, the stirring assembly including a stirring shaft body, a spiral blade, and a sliding groove, the spiral blade being fixed to the surface of the stirring shaft body, and the sliding groove being formed at both ends of the inner cavity on one side of the stirring shaft body.

[0008] As a preferred embodiment of the split spline stirring shaft of this utility model, the mounting component includes a pull plate, a first clamping plate and a second clamping plate. The surface of the pull plate is slidably inserted into the inner cavity of the positioning shell and fixed to the top of the first clamping plate. The first clamping plate is engaged with the surface of the second clamping plate. One side of the second clamping plate slides through to the outer wall of the positioning shell and is fixed to the surface of the stirring shaft body.

[0009] As a preferred embodiment of the split spline stirring shaft of this utility model, the mounting component includes a sliding sleeve and a sliding rod. The two sliding sleeves are fixed on opposite sides of the first clamping plate. The inner cavity of the sliding sleeve is slidably sleeved on the sliding rod. Both ends of the sliding rod are fixed to the inner cavity of the positioning shell.

[0010] As a preferred embodiment of the split spline stirring shaft of this utility model, the mounting component includes a damper, the bottom of which is fixed to the top of the first clamping plate, and the top of which is fixed to the inner cavity of the positioning shell.

[0011] As a preferred embodiment of the split spline stirring shaft of this utility model, the mounting component includes a limiting ring, the inner cavity of which is slidably sleeved on the surface of the pull plate, and the bottom of the limiting ring is fixed to the top of the positioning shell.

[0012] As a preferred embodiment of the split spline stirring shaft of this utility model, the mounting component includes a reinforcing block, the reinforcing block is fixed to the bottom of the second clamping plate, and the bottom of the reinforcing block is fixed to the surface of the stirring shaft body.

[0013] As a preferred embodiment of the split spline stirring shaft of this utility model, the shaft assembly includes sliders, with one side of each slider fixed to one end of the spline shaft, and the sliders slidably inserted into the inner cavity of the groove.

[0014] As a preferred embodiment of the split spline stirring shaft of this utility model, the shaft assembly includes an auxiliary wheel, the surface of which is fixed to the inner cavity of the slider, and the surface of which is in rolling contact with the groove.

[0015] As a preferred embodiment of the split spline stirring shaft of this utility model, the shaft assembly includes a reinforcing plate, one side of the two reinforcing plates is fixed to one side of the positioning shell, and the bottom of the reinforcing plate is fixed to the surface of the spline shaft.

[0016] As a preferred embodiment of the split spline stirring shaft of this utility model, the stirring assembly includes a threaded rod, one side of which is fixed to one side of the stirring shaft body.

[0017] The beneficial effects of this utility model are as follows: by setting the mounting component, the stirring shaft body can be efficiently spliced ​​and conveniently disassembled. This design effectively avoids the drawbacks of traditional integrated stirring shafts. In traditional designs, when it is necessary to adjust the length of the stirring shaft, it is often necessary to disassemble the entire stirring shaft and replace it with a longer or shorter stirring shaft to meet the needs of material stirring. This operation not only seriously interferes with the normal operation of stirring work, but also greatly increases the workload of workers. However, the design of this mounting component can easily solve the above problems. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0019] Figure 1 This is a structural diagram of a split-type spline stirring shaft.

[0020] Figure 2 This is another view of the overall structure of the split spline stirring shaft.

[0021] Figure 3 This is a structural diagram of the mounting components for a split-type spline stirring shaft.

[0022] Figure 4 This is a diagram of the slider structure of a split-type spline stirring shaft.

[0023] Labels in the diagram: 100, Shaft assembly; 101, Splined shaft; 102, Spline groove; 103, Positioning housing; 104, Mounting component; 104a, Pull plate; 104b, First clamping plate; 104c, Second clamping plate; 104d, Sliding sleeve; 104e, Sliding rod; 104f, Damper; 104g, Limiting ring; 104h, Reinforcing block; 105, Sliding block; 106, Auxiliary wheel; 107, Reinforcing plate; 200, Agitator assembly; 201, Agitator shaft body; 202, Spiral blade; 203, Slide groove; 204, Threaded rod. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0027] Example 1

[0028] Reference Figures 1-4 This is the first embodiment of the present invention, which provides a split spline stirring shaft. The split spline stirring shaft includes a shaft assembly 100 and a stirring assembly 200. By setting the mounting part 104, efficient splicing and convenient disassembly of the stirring shaft body 201 can be achieved. This design effectively avoids the drawbacks of the traditional integrated stirring shaft. In the traditional design, when it is necessary to adjust the length of the stirring shaft, it is often necessary to disassemble the entire stirring shaft and replace it with a longer or shorter stirring shaft to meet the needs of material stirring. This operation method not only seriously interferes with the normal operation of the stirring work, but also greatly increases the workload of the workers. However, the design of the mounting part 104 can easily solve the above problems.

[0029] The shaft assembly 100 includes a splined shaft 101, a spline groove 102, a positioning shell 103, and a mounting member 104. The spline groove 102 is formed on one side of the surface of the splined shaft 101, the positioning shell 103 is fixed to both ends on one side of the splined shaft 101, and the mounting member 104 is disposed in the inner cavity of the positioning shell 103.

[0030] The spline groove 102 formed on the surface of the spline shaft 101 reduces the risk of local wear on the spline shaft 101. Under high-speed and high-load working conditions, the contact surface between the spline groove and the spline shaft 101, through reasonable design, can ensure normal operation for a long time without being easily damaged. The fixed connection between the positioning shell 103 and the spline shaft 101 serves to fix the mounting part 104 so as to facilitate disassembly and installation.

[0031] The stirring assembly 200 includes a stirring shaft body 201, a spiral blade 202, and a groove 203. The spiral blade 202 is fixed to the surface of the stirring shaft body 201, and the groove 203 is formed at both ends of the inner cavity on one side of the stirring shaft body 201.

[0032] The fixed connection between the spiral blade 202 and the stirring shaft body 201 achieves the effect of uniformly stirring the material. The groove 203 opened in the inner cavity of the stirring shaft body 201 facilitates the installation of the stirring shaft body 201.

[0033] Example 2

[0034] Reference Figures 2-4 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0035] Specifically, the mounting component 104 includes a pull plate 104a, a first clamping plate 104b, and a second clamping plate 104c. The surface of the pull plate 104a is slidably inserted into the inner cavity of the positioning shell 103 and fixed to the top of the first clamping plate 104b. The first clamping plate 104b is engaged with the surface of the second clamping plate 104c. One side of the second clamping plate 104c slides through to the outer wall of the positioning shell 103 and is fixed to the surface of the stirring shaft body 201.

[0036] During the installation of the stirring shaft body 201, it must first be precisely aligned with one side of the spline shaft 101. Then, along the axial direction of the spline shaft 101, the stirring shaft body 201 is moved smoothly to achieve a tight engagement with the spline shaft. While the stirring shaft body 201 is moving, the precise cooperation between the sliding groove 203 and the slider 105 is cleverly utilized to assist in the insertion operation. At this time, the auxiliary wheels 106 on the surface of the slider 105 play a crucial role. They can reduce friction and ensure that the movement of the stirring shaft body 201 is smooth and unobstructed. As the stirring shaft body 201 continues to move, it will drive the second clamping plate 104c to be smoothly inserted and positioned. The inner cavity of the shell 103 is precisely engaged with the first clamping plate 104b. The first clamping plate 104b begins to move under the engagement of the second clamping plate 104c, while simultaneously driving the sliding sleeve 104d to slide smoothly on the surface of the sliding rod 104e. During this process, the damper 104f plays a crucial buffering role, effectively absorbing and dispersing the impact force, ensuring that the first clamping plate 104b and the second clamping plate 104c can engage smoothly and completely, thereby preventing detachment during the splicing process. This ensures the reliability and stability of the stirring shaft during subsequent operation, providing a strong guarantee for the efficient stirring operation.

[0037] Specifically, the mounting component 104 includes a sliding sleeve 104d and a sliding rod 104e. The two sliding sleeves 104d are fixed to the two sides of the first clamping plate 104b on opposite sides. The inner cavity of the sliding sleeve 104d is slidably sleeved on the sliding rod 104e. Both ends of the sliding rod 104e are fixed to the inner cavity of the positioning shell 103.

[0038] The sliding connection between the sliding sleeve 104d and the sliding rod 104e serves to assist in the movement of the first card plate 104b.

[0039] Specifically, the mounting component 104 includes a damper 104f, the bottom of which is fixed to the top of the first clamping plate 104b, and the top of which is fixed to the inner cavity of the positioning shell 103.

[0040] The fixed connection between the damper 104f and the positioning shell 103 serves to buffer the movement of the first card plate 104b.

[0041] Specifically, the mounting component 104 includes a limiting ring 104g, the inner cavity of the limiting ring 104g is slidably sleeved on the surface of the pull plate 104a, and the bottom of the limiting ring 104g is fixed to the top of the positioning shell 103.

[0042] The fixed connection between the limiting ring 104g and the positioning shell 103 serves to limit the movement of the pull plate 104a.

[0043] Specifically, the mounting component 104 includes a reinforcing block 104h, which is fixed to the bottom of the second clamping plate 104c, and the bottom of the reinforcing block 104h is fixed to the surface of the stirring shaft body 201.

[0044] The fixed connection between the reinforcing block 104h and the stirring shaft body 201 effectively reinforces and fixes the second clamping plate 104c.

[0045] Specifically, the shaft assembly 100 includes sliders 105, with one side of each slider 105 fixed to one end of the spline shaft 101, and the sliders 105 slidably inserted into the inner cavity of the groove 203.

[0046] The sliding insertion of slider 105 and groove 203 serves to assist in the movement and insertion of the stirring shaft body 201.

[0047] Example 3

[0048] Reference Figure 2 , Figure 3 and Figure 4 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0049] Specifically, the shaft assembly 100 includes an auxiliary wheel 106, the surface of which is fixed to the inner cavity of the slider 105, and the surface of which is in rolling contact with the groove 203.

[0050] The sliding contact between the auxiliary wheel 106 and the chute 203 facilitates the movement of the stirring shaft body 201.

[0051] Specifically, the shaft assembly 100 includes reinforcing plates 107, one side of the two reinforcing plates 107 is fixed to one side of the positioning shell 103, and the bottom of the reinforcing plates 107 is fixed to the surface of the spline shaft 101.

[0052] The connection between the reinforcing plate 107 and the spline shaft 101 effectively reinforces and fixes the positioning shell 103.

[0053] Specifically, the stirring assembly 200 includes a threaded rod 204, one side of which is fixed to one side of the stirring shaft body 201.

[0054] The welding and fixing of the threaded rod 204 to the stirring shaft body 201 facilitates the connection of subsequent workpieces.

[0055] During use, when installing the stirring shaft body 201, it must first be precisely aligned with one side of the spline shaft 101. Then, the stirring shaft body 201 is moved smoothly along the axial direction of the spline shaft 101 to achieve a tight engagement with the spline shaft. While the stirring shaft body 201 is moving, the sliding groove 203 and the slider 105 are used for auxiliary insertion. At this time, the auxiliary wheels 106 on the surface of the slider 105 play a crucial role. They can reduce friction and ensure that the movement of the stirring shaft body 201 is smooth and unobstructed. As the stirring shaft body 201 continues to move... This will cause the second clamping plate 104c to smoothly insert into the inner cavity of the positioning shell 103 and achieve precise engagement with the first clamping plate 104b. The first clamping plate 104b begins to move under the engagement of the second clamping plate 104c, simultaneously causing the sliding sleeve 104d to slide smoothly on the surface of the sliding rod 104e. During this process, the damper 104f plays a crucial buffering role, effectively absorbing and dispersing the impact force, ensuring that the first clamping plate 104b and the second clamping plate 104c can engage smoothly and completely, thereby preventing detachment during the splicing process. To ensure the reliability and stability of the stirring shaft during subsequent operation and provide a strong guarantee for efficient stirring, when it is necessary to disassemble, maintain, or replace the stirring shaft body 201, simply pull the pull plate 104a upwards. As the pull plate 104a moves upwards, the first clamping plate 104b will also move upwards synchronously. During the movement of the first clamping plate 104b, the sliding sleeve 104d will slide smoothly on the surface of the sliding rod 104e, playing a role in auxiliary support and guidance. At the same time, the damper 104f will quickly rebound, releasing its stored elastic potential energy. Under the rebound action of the damper 104f, the first clamping plate 104b gradually separates from the second clamping plate 104c, releasing the tight engagement between them. At this time, the operator can smoothly pull the stirring shaft body 201 outward. During the process of pulling out the stirring shaft body 201, the slide groove 203 will smoothly disengage from the surface of the slider 105. The entire disassembly process is smooth and efficient. This ingenious design makes the disassembly of the stirring shaft body 201 easy, greatly improving the maintainability and ease of operation of the equipment, and providing great convenience for subsequent maintenance work or replacement of new parts.

[0056] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A split spline mixing shaft characterized by: include, A shaft assembly (100) includes a splined shaft (101), a spline groove (102), a locating housing (103), and a mounting member (104). The spline groove (102) is formed on one side of the splined shaft (101). The locating housing (103) is fixed to both ends of one side of the splined shaft (101). The mounting member (104) is disposed within the inner cavity of the locating housing (103). A stirring assembly (200) includes a stirring shaft body (201), a spiral blade (202), and a groove (203). The spiral blade (202) is fixed to the surface of the stirring shaft body (201), and the groove (203) is opened at both ends of the inner cavity on one side of the stirring shaft body (201).

2. The split spline mixing shaft of claim 1, wherein: The mounting component (104) includes a pull plate (104a), a first clamping plate (104b), and a second clamping plate (104c). The surface of the pull plate (104a) is slidably inserted into the inner cavity of the positioning shell (103) and fixed to the top of the first clamping plate (104b). The first clamping plate (104b) is engaged with the surface of the second clamping plate (104c). One side of the second clamping plate (104c) slides through to the outer wall of the positioning shell (103) and is fixed to the surface of the stirring shaft body (201).

3. The split spline mixing shaft of claim 2, wherein: The mounting component (104) includes a sliding sleeve (104d) and a sliding rod (104e). The two sliding sleeves (104d) are fixed on opposite sides of the first clamping plate (104b). The inner cavity of the sliding sleeve (104d) is slidably sleeved on the sliding rod (104e). Both ends of the sliding rod (104e) are fixed to the inner cavity of the positioning shell (103).

4. The split spline mixing shaft of claim 2, wherein: The mounting component (104) includes a damper (104f), the bottom of which is fixed to the top of the first clamping plate (104b), and the top of which is fixed to the inner cavity of the positioning shell (103).

5. The split spline mixing shaft of claim 2, wherein: The mounting component (104) includes a limiting ring (104g), the inner cavity of which is slidably sleeved on the surface of the pull plate (104a), and the bottom of the limiting ring (104g) is fixed to the top of the positioning shell (103).

6. The split spline mixing shaft of claim 2, wherein: The mounting component (104) includes a reinforcing block (104h), which is fixed to the bottom of the second clamping plate (104c), and the bottom of the reinforcing block (104h) is fixed to the surface of the stirring shaft body (201).

7. The split spline mixing shaft of claim 1 wherein: The shaft assembly (100) includes sliders (105), with one side of each slider (105) fixed to one end of the spline shaft (101), and the sliders (105) slidably inserted into the inner cavity of the groove (203).

8. The split spline mixing shaft of claim 7, wherein: The shaft assembly (100) includes an auxiliary wheel (106), the surface of which is fixed to the inner cavity of the slider (105), and the surface of which is in rolling contact with the groove (203).

9. The split spline mixing shaft of claim 1 wherein: The shaft assembly (100) includes reinforcing plates (107), one side of each of the two reinforcing plates (107) is fixed to one side of the positioning shell (103), and the bottom of the reinforcing plates (107) is fixed to the surface of the spline shaft (101).

10. The split spline mixing shaft of claim 1 wherein: The stirring assembly (200) includes a threaded rod (204), one side of which is fixed to one side of the stirring shaft body (201).