Automatic locking sealing rotor shaft
By designing an automatically locking sealed rotor shaft, the problem of chlorine leakage caused by the inability to lock the rotor shaft to the rotor was solved, achieving a tight connection between the rotor and the rotor shaft, and ensuring production safety and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-23
- Publication Date
- 2026-03-17
AI Technical Summary
During the aluminum refining process, the rotor shaft and rotor cannot be effectively locked together, resulting in chlorine leakage, which affects production safety and efficiency.
Design an automatically locking sealed rotor shaft. By setting threaded connections and adapter grooves on the shaft body, ensure a tight fit between the rotor and the rotor shaft to prevent chlorine leakage.
This achieves a secure connection between the rotor and the rotor shaft, preventing chlorine leakage, ensuring production safety, and improving production efficiency.
Smart Images
Figure CN224003045U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aluminum refining, specifically to an automatically locking sealed rotor shaft. Background Technology
[0002] In the aluminum industry, chlorine gas is introduced into the molten aluminum during refining to reduce its alkali metal content. However, during routine use, leaks frequently occur because the rotor shaft cannot be properly locked to the chlorine-carrying rotor, resulting in incomplete sealing and ultimately chlorine leakage. Furthermore, after the rotor and rotor shaft are installed, the front face of the rotor is flush with the bottom face of the shaft. However, to improve installation speed, gaps are left between the rotor and shaft after installation. This causes the front face of the rotor to be non-parallel to the bottom face of the shaft, creating gaps that lead to chlorine leakage. Chlorine is a highly toxic gas; excessive inhalation can cause respiratory damage and be life-threatening. Moreover, chlorine leaks reduce the amount of chlorine introduced into the furnace, affecting product processing progress. Utility Model Content
[0003] The purpose of this invention is to provide an automatically locking sealed rotor shaft, which solves the problem of chlorine leakage.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0005] An automatically locking sealed rotor shaft includes a shaft body and an air supply pipe. The bottom of the shaft body is provided with a vent hole communicating with the air supply pipe. The shaft body includes a left shaft head and a right shaft head, and the left shaft head and the right shaft head are respectively provided with threads. The left shaft head and the right shaft head are used together.
[0006] Furthermore, the left and right shaft heads have rectangular cross-sections symmetrically arranged on both sides. The left shaft head has multiple first connecting holes, and the right shaft head has multiple second connecting holes. Bolts pass through the second connecting holes and the first connecting holes in sequence to connect the left and right shaft heads. The first connecting holes and the second connecting holes are respectively arranged on the rectangular cross-sections.
[0007] Furthermore, the height of the right shaft head is less than the height of the left shaft head, and the vent hole is located at the bottom of the left shaft head.
[0008] Furthermore, the bottom of the left shaft head is cylindrical, and an adapter groove is provided on the bottom surface of the left shaft head.
[0009] By adopting the above technical solution, the beneficial technical effects of this utility model are:
[0010] This invention adds threads to the shaft body, creating a threaded connection between the rotor shaft and the rotor. As the rotor rotates, stress is generated between the rotor and the rotor shaft, resulting in a more secure connection that prevents the rotor shaft from detaching from the rotor and thus eliminates chlorine gas leakage. Furthermore, an adapter groove is added to the bottom surface of the rotor shaft, allowing the front end of the rotor to extend into the groove, ensuring no gaps form between the front end of the rotor and the bottom surface of the rotor shaft, preventing chlorine gas leakage. This invention ensures a tight fit between the rotor shaft and the rotor, preventing any chlorine gas leakage. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of an automatically locking sealed rotor shaft.
[0012] Figure 2 A side view of a self-locking sealed rotor shaft.
[0013] Figure 3 For along Figure 2 Sectional view of AA.
[0014] Figure 4 for Figure 3 A magnified view of point X in the middle. Detailed Implementation
[0015] like Figure 1 As shown, an automatically locking sealed rotor shaft includes a shaft body 1 and a gas supply pipe 2. The bottom of the shaft body 1 has a vent hole communicating with the gas supply pipe 2. The shaft body 1 includes a left shaft head 11 and a right shaft head 12, each with threads. The left shaft head 11 and right shaft head 12 are used in conjunction. After the left shaft head 11 and right shaft head 12 are bolted together, the threads on the left shaft head 11 and right shaft head 12 form a complete set of internal threads, allowing the shaft body 1 to be threadedly connected to the rotor with external threads. The rotor supplies chlorine gas into the shaft body 1, which ultimately enters the molten aluminum through the gas supply pipe 2. The rotor rotates, and during this rotation, stress is generated between the rotor and the rotor shaft, making the connection between the rotor and the rotor shaft tighter, preventing the rotor shaft from detaching from the rotor, and avoiding chlorine gas leakage.
[0016] like Figure 2 and Figure 3As shown, the left shaft head 11 and the right shaft head 12 have symmetrical rectangular cross-sections on both sides. The left shaft head 11 has multiple first connecting holes 13, and the right shaft head 12 has multiple second connecting holes 14. Bolts pass through the second connecting holes 14 and the first connecting holes 13 in sequence to connect the left shaft head 11 and the right shaft head 12. The first connecting holes 13 and the second connecting holes 14 are correspondingly arranged on the rectangular cross-sections. Forming the shaft body 1 from the left shaft head 11 and the right shaft head 12 facilitates production, while producing the left shaft head 11 and the right shaft head 12 separately facilitates the utilization of scrap materials and reduces manufacturing costs. Because the rotor and rotor shaft rotate at high speeds, it can be difficult to unscrew the rotor shaft from the rotor. In this case, the shaft body 1 can be easily removed by unscrewing the bolts fixing the left shaft head 11 and the right shaft head 12.
[0017] like Figure 4 As shown, the height of the right shaft head 12 is less than the height of the left shaft head 11, and the volume of the right shaft head 12 is less than the volume of the left shaft head 11, to prevent chlorine gas leakage due to cracks in the vent hole. The vent hole is located at the bottom of the left shaft head 11. The bottom of the left shaft head 11 is cylindrical, and an adapter groove 15 is provided on the bottom surface of the left shaft head 11. After the rotor is installed, the front end of the rotor will be embedded in the adapter groove 15, allowing chlorine gas to completely enter the gas supply pipe 2 through the vent hole, effectively preventing chlorine gas leakage.
[0018] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.
Claims
1. A self-locking sealed rotor shaft, characterized by, The utility model provides a kind of air supply pipe and shaft body, the shaft body bottom is provided with the vent hole being communicated with the air supply pipe;Shaft body includes left shaft head and right shaft head, left shaft head and right shaft head are equipped with thread respectively, the left shaft head is used in cooperation with right shaft head.
2. An automatic locking sealed rotor shaft as claimed in claim 1 wherein, The left shaft head and the right shaft head are symmetrically provided with a rectangular cut surface on the two sides, a plurality of first connecting holes are provided on the left shaft head, a plurality of second connecting holes are provided on the right shaft head, and a bolt passes through the second connecting hole and the first connecting hole in sequence to connect the left shaft head and the right shaft head;The first connecting hole and the second connecting hole are correspondingly arranged on the rectangular cut surface.
3. An automatic locking sealed rotor shaft as claimed in claim 2 wherein, The height of the right shaft head is less than the height of the left shaft head, and the vent hole is arranged at the bottom of the left shaft head.
4. An automatic locking sealed rotor shaft as claimed in claim 3 wherein, The bottom of the left shaft head is in a cylindrical shape, and an adaptive groove is arranged on the bottom surface of the left shaft head.