Quick-change type variable flow stirring and mixing shaft
By designing a quick-change variable flow mixing shaft, the problem of cumbersome replacement of mixing shafts in existing mixing equipment has been solved, enabling rapid replacement and efficient production.
Patent Information
- Application Number
- CN202520201138.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-10
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-02-10
AI Technical Summary
The replacement of the mixing shaft in existing mixing equipment is cumbersome, results in long downtime, high maintenance costs, and the overall design is complex, leading to serious waste of resources.
Design a quick-change variable flow mixing shaft, including a mixing shaft, a feeding shaft and a drive shaft, which are connected by an internal hexagonal hole, allowing the mixing shaft and the feeding shaft to be replaced independently, avoiding the need for disassembly of the entire machine.
It enables quick replacement of the mixing shaft, simplifies the operation process, shortens downtime, improves production efficiency, and reduces maintenance costs.
Smart Images
Figure CN223774661U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stirring shaft technology, specifically a quick-change variable flow stirring and mixing shaft. Background Technology
[0002] In existing mixing equipment, especially horizontal mixers, the mixing shaft is usually designed as an integral piece, that is, the mixing shaft and mixing teeth are welded together in one piece. Although this design ensures the integrity and structural stability of the mixing shaft to a certain extent, it faces many challenges in practical applications.
[0003] First, due to the different properties of different materials, such as water absorption, particle size, and solidification speed, the requirements for stirring speed are also different. This means that when different types of materials need to be stirred, it may be necessary to replace the stirring shaft with one that has different stirring characteristics. However, in the existing integrated stirring shaft design, replacing the stirring shaft usually requires disassembling the entire mixer, which is not only cumbersome to operate, but also greatly increases downtime and maintenance costs.
[0004] Secondly, the manufacturing and maintenance of integral mixing shafts are relatively complex. If a component on the mixing shaft is damaged, the entire mixing shaft may need to be replaced, which not only wastes resources but also increases costs.
[0005] Therefore, we have made technical improvements to the existing integral mixing shaft to meet the usage requirements of quick and easy replacement. Utility Model Content
[0006] The technical problem to be solved by this utility model is to address the shortcomings of the existing technology by providing a quick-change variable flow mixing shaft that can be replaced quickly without replacing the entire mixing shaft and without disassembly during replacement.
[0007] The technical problem to be solved by this utility model is achieved through the following technical solution: a quick-change variable flow stirring and mixing shaft, which includes;
[0008] A stirring shaft has an internal hexagonal hole in its middle. Several sets of stirring plates are fixedly arranged on the outer circumferential surface of the stirring shaft along its axial direction. Each set of stirring plates is composed of several stirring plates circumferentially fixed on the outer circumferential surface of the stirring shaft.
[0009] The feeding shaft has an internal hexagonal hole in its middle. Spiral conveying blades are fixed on the outer circumference of the feeding shaft along its axial direction. One end of the feeding shaft is close to the stirring shaft and is set as the starting end, and the other end is set as the ending end. The blade pitch of the spiral conveying blades gradually increases from the starting end to the ending end.
[0010] A horizontal stirring rod is fixedly installed on the end of a stirring plate near the feeding shaft. The horizontal stirring rod is parallel to the axis of the stirring shaft and the feeding shaft and is placed at the beginning of the feeding shaft to stir the material at the beginning of the feeding shaft.
[0011] The drive shaft has the same diameter as the internal hexagonal hole in the middle of the stirring shaft and the feeding shaft. The drive shaft is formed as an external hexagonal drive shaft that can be inserted into the stirring shaft and the feeding shaft and is adapted to the internal hexagonal hole. Both ends of the drive shaft extend to the outside of the stirring shaft and the feeding shaft.
[0012] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the quick-change variable flow mixing shaft described above has the same installation spacing for each set of mixing plates.
[0013] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the quick-change variable flow mixing shaft described above has the same number of mixing plates in each group of mixing plates.
[0014] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the quick-change variable flow mixing shaft described above has a different installation angle for each set of mixing plates.
[0015] Compared with the prior art, the beneficial technical effects of this utility model are as follows: the quick-change mixing shaft can quickly replace the mixing teeth and feeding blades with different mixing characteristics according to the mixing requirements of different materials. When it is necessary to replace the mixing teeth of different specifications, only the mixing shaft needs to be pulled out. When it is necessary to replace the feeding shaft of different specifications, only the feeding shaft needs to be pulled out. There is no need to disassemble the entire mixer, which greatly simplifies the operation process, shortens the downtime, and improves the production efficiency. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the main structure of the present invention after assembly;
[0017] Figure 2 This is an exploded view of the structure of this utility model.
[0018] Reference numerals in the attached diagram: 1. Stirring shaft; 2. Stirring plate; 3. Feeding shaft; 4. Spiral conveyor blade; 5. Horizontal stirring rod; 6. Drive shaft. Detailed Implementation
[0019] The specific technical solutions of this utility model are further described below with reference to the accompanying drawings, so as to enable those skilled in the art to further understand this utility model, without constituting a limitation on its rights.
[0020] Example 1, referring to Figure 1-2A quick-change variable flow mixing shaft, comprising:
[0021] The stirring shaft 1 is formed into a roughly tubular structure with an internal hexagonal hole in its middle. The cross-section of the internal hexagonal hole is roughly hexagonal. Several sets of stirring plates 2 are fixedly installed on the outer circumferential surface of the stirring shaft 1 along its axial direction. The number of sets can be selected according to the usage requirements. Each set of stirring plates 2 consists of several stirring plates 2 circumferentially fixed on the outer circumferential surface of the stirring shaft 1. The installation spacing of each set of stirring plates 2 is the same. The stirring plates 2 are formed into a roughly square plate structure. The number of stirring plates 2 in each set of stirring plates 2 is the same. The installation angle of the stirring plates 2 in each set of stirring plates 2 is different. The specific installation angle can be selected according to the usage requirements. Its design purpose is to provide sufficient mixing of materials.
[0022] The feeding shaft 3 has an internal hexagonal hole in its middle, and the cross-section of the internal hexagonal hole is roughly hexagonal. A spiral conveying blade 4 is fixed on the outer circumference of the feeding shaft 3 along its axial direction. One end of the feeding shaft 3 is close to the stirring shaft 1 and is set as the starting end, and the other end is set as the ending end. The blade pitch of the spiral conveying blade 4 gradually increases from the starting end to the ending end. The specific pitch value can be selected according to the usage requirements.
[0023] A transverse stirring rod 5 is fixedly provided on the end of a stirring plate 2 near the feeding shaft 3. The transverse stirring rod 5 is formed into a roughly square rod-shaped structure. The transverse stirring rod 5 is parallel to the axis of the stirring shaft 1 and the feeding shaft 3 and is placed at the starting end of the feeding shaft 3, so as to stir the material at the starting end of the feeding shaft 3.
[0024] The transmission shaft 6 has the same diameter as the internal hexagonal hole in the middle of the stirring shaft 1 and the feeding shaft 3. The transmission shaft 6 is formed as an external hexagonal transmission shaft 6 that can be inserted into the stirring shaft 1 and the feeding shaft 3 and is adapted to the internal hexagonal hole. Both ends of the transmission shaft 6 extend to the outside of the stirring shaft 1 and the feeding shaft 3.
[0025] The quick-change variable flow mixing shaft consists of a mixing shaft 1, a feeding shaft 3, and a drive shaft 6. The mixing shaft 1, feeding shaft 3, and drive shaft 6 are detachable, avoiding the problem of the previous method where the mixing shaft 1 and feeding shaft 3 were welded and fixed as one piece, and the entire machine had to be disassembled and replaced when changing one of the shaft specifications. With the quick-change variable flow mixing shaft, when the mixing shaft 1 or feeding shaft 3 needs to be replaced, only the corresponding mixing shaft 1 or feeding shaft 3 needs to be removed and replaced, without having to disassemble the entire mixer. This greatly simplifies the operation process, shortens downtime, and improves production efficiency.
[0026] Compared with the traditional two-section stirring shaft, the traditional stirring shaft assembly has an assembly gap. The middle connection part will sag due to the gap. Due to the influence of manufacturing precision, if the sag is slightly large, it will rub against the inner wall of the stirring drum during operation and make abnormal noise. At the same time, it will affect the support bearings at both ends and aggravate wear.
[0027] With the modifications made in this application, the rigidity of the entire external hexagonal shaft is sufficient, and both ends are coaxial; there is no problem with abnormal noise from rotational friction, the bearing runs smoothly, and its lifespan is guaranteed.
Claims
1. A quick-change variable flow stirring and mixing shaft, characterized in that: It includes; A stirring shaft has an internal hexagonal hole in its middle. Several sets of stirring plates are fixedly arranged on the outer circumferential surface of the stirring shaft along its axial direction. Each set of stirring plates is composed of several stirring plates circumferentially fixed on the outer circumferential surface of the stirring shaft. The feeding shaft has an internal hexagonal hole in its middle. Spiral conveying blades are fixed on the outer circumference of the feeding shaft along its axial direction. One end of the feeding shaft is close to the stirring shaft and is set as the starting end, and the other end is set as the ending end. The blade pitch of the spiral conveying blades gradually increases from the starting end to the ending end. A horizontal stirring rod is fixedly installed on the end of a stirring plate near the feeding shaft. The horizontal stirring rod is parallel to the axis of the stirring shaft and the feeding shaft and is placed at the beginning of the feeding shaft to stir the material at the beginning of the feeding shaft. The drive shaft has the same diameter as the internal hexagonal hole in the middle of the stirring shaft and the feeding shaft. The drive shaft is formed as an external hexagonal drive shaft that can be inserted into the stirring shaft and the feeding shaft and is adapted to the internal hexagonal hole. Both ends of the drive shaft extend to the outside of the stirring shaft and the feeding shaft.
2. The quick-change variable flow mixing shaft according to claim 1, characterized in that: The installation spacing of the mixing plates in each group is the same.
3. The quick-change variable flow mixing shaft according to claim 1, characterized in that: The number of mixing plates in each group of mixing plates is the same.
4. The quick-change variable flow mixing shaft according to claim 1, characterized in that: The mixing plates in each set of mixing plates are installed at different angles.